EU2B Series: 30mm Hazardous Location Switches
EC2B Series: Hazardous Location Control Stations
PRODUCT DESCRIPTION
Complying with UL, IECEx, and ATEX
Directives for hazardous environments,
new 30mm EU2B Hazardous Location
Switches and EC2B Hazardous Location
Control Stations provide increased safety
for your applications.
Control Unit Options:• Pushbuttons• Pilot Lights• Selector Switches• Key Selector Switches

STANDARDS COMPLIANCE
Switches

Pilot Lights

Class I, Zone 1, Ex de IIC T6 Gb
Class I, Div 2, Groups A, B, C and D

Class I, Zone 1 AEx d e IIC T6 Gb
Class I Div 2, Groups A, B, C and D
Class I, Zone 1, Ex de IIB T6 Gb Class I, Zone 1, Ex de IIC T6 Gb
Class I, Div 2, Groups C and D Class I, Div 2, Groups A, B, C and D

UL
c-UL

MetersControl Boxes

II2G Ex de IIC Gb

ATEX
IECEx

II2D Ex tb IIIC Db IP65

Ex d e IIC T6 Gb
Ex tb IIIC T80ºC Db (dust)

Ex de IIC Gb
Ex tb IIIC Db IP65

Ex de IIC T6 Gb
Ex tb IIIC T80ºC Db (dust)

CERTIFICATE NUMBERS
UL/c-UL
E347230ATEX
PTB 08 ATEX 1053 U
PTB 08 ATEX 1003 U
PTB 08 ATEX 1048

Standards

Emergency
Stop Switches

Control Station Options:• Pre-configured stations• Custom-configured stations• Open control boxes• Mounting holes for up to 18 control units• Class I, Zone 1/Division 2• Applicable in explosive gas atmospheres(AEx de IIC T6 Gb)• UL Type 4X rated

Mark• Up to 3 contact blocks

EN60947-5-1

Pushbuttons
Selector
Switches
Key Selector
Switches
Pilot Lights
Meters• Meters

KEY FEATURES

IECEx
IECEx PTB 15.0006U
IECEx PTB 15.0007U
IECEx PTB 15.0032

APPLICABLE STANDARDS
Control Units• Emergency Stop Switches• Selector switches available with lever orkey

UL60079-0
UL60079-1
UL60079-7• Selector switches available withoverlapping contacts

CAN/CSA C22.2 No. 60079-0
CAN/CSA C22.2 No. 60079-1
CAN/CSA C22.2 No. 60079-7
EN60079-0 EN60079-1
EN60079-7 EN60079-31• Exposed and finger-safe (IP20) screw
terminals available

IEC60079-0 IEC60079-1
IEC60079-7 IEC60079-31• Melamine coating• Corrosion resistant stainless steel
enclosure (SUS304)• NPT and Metric reducer options

EN60947-5-51

Pilot Lights

SPECIFICATIONS

Rated Insulation Voltage (Ui)General Specifications

Rated Operating Voltage (Ue)IP65 (IEC60529), Type 4X
100 MΩ minimum (500V DC megger)−20 to +50°C (no freezing)
45 to 85% (no condensation)
2,000m Maximum
3100-m/s²
Operating Extremes
Emergency Stop Switch:
150-m/s² (without Meter)
Damage Limits
1000-m/s²
5 to 55-Hz, amplitude 0.5 mm
Emergency Stop Switch:
Operating Extremes
5 to 500-Hz, amplitude 0.35-mm, acceleration
50-m/s² (without Meter)
30Hz, amplitude 1.5-mm
Emergency Stop Switch:
Damage Limits
5 to 500-Hz, amplitude 0.35-mm, acceleration
50-m/s²

Insulation ResistanceOperating Temperature
Operating Humidity
Altitude
Pollution Degree
Shock ResistanceVibration Resistance

Insulation ResistanceFrequency

Impulse Withstand Voltage (Uimp)
Insulation Resistance
Short-Circuit Protection
Conditional Short-Circuit Current
Pushbutton
Selector Switch

Mechanical Life

Key Selector Switch
Emergency Stop Switch
Pushbutton
Selector Switch

Electrical Life

Key Selector Switch
Emergency Stop Switch

Minimum Operator
Stroke Required for
Emergency Stop Switch
Direct Opening Action

MetersInsulation Resistance

Rated Operating Voltage (Ue)Resistive Load (AC12)
Inductive Load (AC15)
Resistive Load (DC12)

120V
10A*
6A
2.2A
1.1A

240V
6A
3A
1.1A
0.55A

Inductive Load (DC13)
Note: Up to 2 contacts (per control unit): 10A
3 contacts (per control unit): 9A
Minimum applicable load: 3V AC/DC, 5mA
Applicable operating locations may vary according to operating conditions and load types.

A600

10

6.00

240 Volt
30

Operation
Impulse Withstand Voltage (Uimp)
Input
Power Consumption (DC ammeter)

Degree of protection

IP65 (IEC60529), Type 4X

Housing Material

Stainless steel (SUS304)

Insulation Resistance

Melamine
1-column: Outside coating
2-, 3-column: Inside and outside coating
600V(with pilot light or ET2A-8PE screw terminal block: 500V)
Meter AC input: 300V
Meter DC input: 150V
100 MΩ minimum (500V DC megger)

Operating Temperature−20 to +50°C (no freezing)

Operating Humidity

45 to 85% (no condensation)

Altitude

2000m maximum

Standard Coating

Rated Insulation
Voltage

500V
2.8A
1.4A
—
—

480 Volt

600 Volt

3.00

15

1.5

12

1.2

Agency Approvals

UL/c-UL, IECEx/ATEX certified

Applicable Enclosure

All enclosures except for
6 Control Units x 3 Column
Wall Mount

Mounting Style
Pilot Light

Yes1

Pushbutton

Yes

Emergency Pushbutton

Yes

Selector Switch

Yes

Key Selector Switch

Yes

Meter

Yes

Reducer Screw

600 Volt

NPT Thread (standard)
Metric Thread

Make Break Make Break Make Break Make Break Make Break60

Measurement

Control Boxes

Maximum
Volt-Amperes

Maximum current, Amperes
120 Volt

Power Consumption

Consumption Current (DC voltmeter)
Note: Use a commercially available CT (current transformer) for all AC ammeters, and install the CT in a
non-hazardous location.

7200 720

Degree of Protection

IP65, TYPE4X (UL)

Grounding Terminal Screw Material

Stainless SteelApplicable
Wire

Contact
Rating Code
Designation

ThermalContinuous
Test
Current
AmperesMoving core
4kV
1VA
5A, 10A, 30A, 50A, etc
1A, 5A
3 times, etc
150V
Moving coil
2.5kV
0 to10V DC, 4 to 20mA, etc.
0.15W
1mA

Impulse Withstand Voltage (Uimp)

Rated Insulation Voltage (Ui)Control Unit

Rated Thermal Current (Ith)DC

Operation

Extended Memory

Contact Rating (Switches)

Rated Operating
Current (Ie)

300V

Input (CT Ratio)

Maximum Operator
Emergency Stop Switch 9.0mm
StrokeNote: Contacts will bounce during operation of pushbuttons and selector switches (reference value: 20ms). Be sure to take contact bounce time into consideration when designing a control circuit.

AC
50/60Hz

Rated Insulation Voltage (Ui)

7.0mm

600V
10A*
24V
10A*
10A*
8A
4A

2.5
100 MΩ minimum (500V DC megger)

Accuracy Class

600V
50mΩ maximum (initial value)
6kV
100MΩ minimum (500V DC megger)
250V/10A fuse
(Type aM IEC60269-1/IEC60269-2)
1,000A
1,000,000 operations minimum
500,000 operations minimum
500,000 operations minimum
50,000 operations minimum
250,000 (switching frequency 1800 operations/hr)
250,000 (switching frequency 900 operations/hr)
250,000 (switching frequency 900 operations/hr)
50,000 (switching frequency 900 operations/hr)

Rated Insulation Voltage (Ui)Transformer

500V
6V, 12V, 24V AC/DC
120V, 230V, 240V, 380V, 480V AC
4kV
100 MΩ minimum (500V DC)
50/60Hz
0.3W
1.5W
Approx. 40,000 hours

Life (reference value)
Note: Because the built-in LED lamp is a high-brightness version, the lamp may light dimly due to induction
even when power is off.

DC input meterContact ResistanceFull Voltage

Power Consumption (approx.)

SwitchesRated Insulation Voltage

Transformer

Impulse Withstand Voltage (Uimp)

AC ammeter

Degree of Protection

Voltage

Stranded Wire (mm2)

1.5 to 2.5

Solid Wire (mm2)

1.2 to 1.6

Solid/Stranded Wire (AWG)

16-14

1: c-UL explosion protection is different when pilot light is installed.

2

SWITCHES (CONTROL UNITS)

Pushbuttons

Emergency Stop Switches

Pilot Lights

Selector Switches

Pushbuttons

Key Selector Switches

MetersEU2B - YM 5 3 A 10 F R

EU2B - YB1 11 F S - D

Operator (style / function)
Button color
Contact arrangement
B1 : Flush pushbutton / Momentary
Blank: Red, Green, Black,
10
:
1NO
01
:
1NC
B2 : Extended pushbutton / Momentary
and White included
20
:
2NO
02
:
2NC
Y : Yellow S : Blue
B3 : Mushroom pushbutton / Momentary
30 : 3NO
03 : 3NC
Terminals
11 : 1NO-1NC
12 : 1NO-2NC F : Finger-safe terminal (IP20)
C : Exposed screw terminal
21 : 2NO-1NC
Part Number

EU2B-YB110➃➀–D
EU2B-YB101➃➀–D
EU2B-YB111➃➀–D
EU2B-YB120➃➀–D
EU2B-YB102➃➀–D
EU2B-YB121➃➀–D
EU2B-YB112➃➀–D
EU2B-YB130➃➀–D
EU2B-YB103➃➀–D
EU2B-YB210➃➀–D
EU2B-YB201➃➀–D
EU2B-YB211➃➀–D
EU2B-YB220➃➀–D
EU2B-YB202➃➀–D
EU2B-YB221➃➀–D
EU2B-YB212➃➀–D
EU2B-YB230➃➀–D
EU2B-YB203➃➀–D
EU2B-YB310➃➀–D
EU2B-YB301➃➀–D
EU2B-YB311➃➀–D
EU2B-YB320➃➀–D
EU2B-YB302➃➀–D
EU2B-YB321➃➀–D
EU2B-YB312➃➀–D
EU2B-YB330➃➀–D
EU2B-YB303➃➀–D

Style andFunction

Flush
Momentary

Extended
MomentaryMushroom
Momentary

Contact
Arrangement

1NO
1NC
1NO-1NC
2NO
2NC
2NO-1NC
1NO-2NC
3NO
3NC
1NO
1NC
1NO-1NC
2NO
2NC
2NO-1NC
1NO-2NC
3NO
3NC
1NO
1NC
1NO-1NC
2NO
2NC
2NO-1NC
1NO-2NC
3NO
3NC

Weight(Approx.)FunctionSet pointerM : Meter
blank : non -R : with set pointerInput current
1 : 1A 5 : 5A
Terminals
Specification of overload scale
F : Finger-safe terminal (IP20)
3: 3 times 2 : 2 times 5 : 5 times N:Non
C : Exposed screw terminal
Type of meter
A : AC ammeter Measuring range
Direct measuring	 1 : 1A    5 : 5A
For current transformers: 10 : 10A  15 : 15A  20 : 20A   30:30A   50:50A 	
60 : 60A  75 : 75A 100:100A 150:150A  ➀ Button Color

68g

92g

➀ Blank - supplied withred, green, black, and whitebuttons

116g

For yellow or blue buttons,
specify Y (yellow) or S
(blue).

EU2B - YM 010 VD F-PER-R

Input

70g

94g

118g

76g

101g

Specify a button color codein place of ➀ in the partnumberB : blackG : green
R : redS : blueW : whiteY : yellow

AC
input
meter
(ammeter)

125g

Emergency Stop Switches
EU2B - YBV3 11 F R
Operator (style / function)
BV3 : 40mm mushroom/push, pull or
twist release

Contact arrangement
01 : 1NC
11 : 1NO-1NC
02 : 2NC
03 : 3NC
12 : 1NO-2NC

Operator

Contact
Arrangement

EU2B-YBV301➃R

1NC

EU2B-YBV311➃R

1NO-1NC

EU2B-YBV302➃R

ø40 Mushroom

2NC

EU2B-YBV312➃R

1NO-2NC

EU2B-YBV303➃R

3NC

DC
input
meter

Button color
R : RedTerminals
F : Finger-safe terminal (IP20)
C : Exposed screw terminal
Weight(Approx.)

Description

Part Number

EU2B-YM53A5➃

Capacity: 5A

Expansion scale: x3

EU2B-YM53A10➃

Capacity:10/5A

Expansion scale: x3

EU2B-YM13A10➃

Capacity:10/1A

Expansion scale: x3

EU2B-YM53A15➃

Capacity:15/5A

Expansion scale: x3

EU2B-YM13A15➃

Capacity:15/1A

Expansion scale: x3

EU2B-YM13A20➃

Capacity:20/1A

Expansion scale: x3

EU2B-YM53A30➃

Capacity:30/5A

Expansion scale: x3

EU2B-YM13A30➃

Capacity:30/1A

Expansion scale: x3

EU2B-YM53A50➃

Capacity:50/5A

Expansion scale: x3

EU2B-YM53A60➃

Capacity:60/5A

Expansion scale: x3

EU2B-YM53A75➃

Capacity:75/5A

Expansion scale: x3

EU2B-YM53A100➃

Capacity:100/5A

Expansion scale: x3

EU2B-YM53A150➃

Capacity:150/5A

Expansion scale: x3

EU2B-YM010VD➃-PER

0-10V DC Input

Scale: 0 to 100%

EU2B-YM010VD➃-60HZ

0-10V DC Input

Scale: 0 to 60Hz

EU2B-YM001MD➃-PER

0-1mA DC Input

Scale: 0 to 100%

EU2B-YM001MD➃-60HZ

0-1mA DC Input

Scale: 0 to 60Hz

EU2B-YM001MD➃-80HZ

0-1mA DC Input

Scale: 0 to 80Hz

EU2B-YM420MD➃-PER

4-20mA DC Input

Scale: 0 to 100%

EU2B-YM420MD➃-60HZ

4-20mA DC Input

Scale: 0 to 60Hz

Weight(approx.)

270g

Specify a terminal style in place of ➃ in the part number: F (Finger-safe terminal), C (Exposed
screw terminal)

Button Color

96g
120g

Set pointerblank : non -R : with set pointerSpecification of scale-PER : 0~100%-60HZ : 0~60Hz-80HZ : 0~80Hz

Function
M : Meter
Input voltage or current
Type of meter
010 : 0-10V
001 : 0-1mA
VD : DC voltmeter
420 : 4-20mA etc.
MD : DC ammeter
Terminals
F : Finger-safe terminal (IP20)
C : Exposed screw terminal

Note: ➀ Button Color. Specify a contact terminal style in place of ➃ in the part number: F (Finger-safe
terminal), C (Exposed screw terminal)

Part Number

Meters

R : Red

144g

Specify a terminal style in place of ➃ in the part number: F (Finger-safe terminal), C (Exposed screw
terminal)

3

Pilot Lights
Part Number

Operating
VoltageType

Weight(Approx.)EU2B - YL1 22 F D R➀ Illumination
Color Code230V AC

EU2B-YL1236➃D➀
Transformer

EU2B-YL1246➃D➀

150g

240V AC

EU2B-YL1386➃D➀

380V AC

EU2B-YL1486➃D➀

480V AC
6V AC/DC

EU2B-YL166➃D➀
Full Voltage

EU2B-YL111➃D➀

12V AC/DC

Lens/LED Colors
R : Red
G : Green A : Amber
Y : Yellow PW : White S : Blue

Operator (style / function)
L1 : Pilot Light / dome

120V AC

EU2B-YL1126➃D➀

Operating voltage
126 : AC 120V (Transformer type)
246 : AC 240V (Transformer type)
386 : AC 380V (Transformer type)
486 : AC 480V (Transformer type)R : redG : greenA : amber
Y : yellow
PW : white
S : blue

Terminals
F : Finger-safe terminal (IP20)
C : Exposed screw terminal

66 : AC/DC 6V (Full voltage type)
11 : AC/DC 12V (Full voltage type)
22 : AC/DC 24V (Full voltage type)

108g

24V AC/DC

EU2B-YL122➃D➀

Note: ➀ Illumination Color. Specify a contact terminal style in place of ➃ in the part number: F (Finger-safe
terminal), C (Exposed screw terminal)

2 Position Selector Switches
EU2B - YSK 3 11 N1 F A
Operator (style / function)
S : Selector (Knob operator)
SK: Key selector (Key operator)
Number of Positions / Spring Return Action
2 : 2-position / Maintained
3 : 3-position / Maintained
2R : 2-position / Maintained (Overlap)
31 : 3-position / Spring return from right2J : 2-position / Maintained (Special function) 32 : 3-position / Spring return from left
21 : 2-position / Spring return from right
33 : 3-position / Spring return two-way

Selector Switches
Operator Position
Contact

Mounting

NO

1

R

L

Maintained

R

L

R

Maintained

3
1

NO
NC

3
1

NC
NO

3
1

●

NC
NO
NO
NO
NC
NC
NC
NO
NO
NC
NO
NC
NC
NO

3
1
2
3
1
2
3
1
2
3
1
2
3
1

●

NC

2

Terminals
F : Finger-safe terminal (IP20)
C : Exposed screw terminal
Circuit Number
Blank : No Designation
N* : See charts

L

Spring Return from
Right

R

L

R

●

NC
NO

Key Removable Position
See option codes below

Key Selector Switches

Spring Returnfrom RightL

Contact arrangement
10 : 1NO
03 : 3NC
11 : 1NO-1NC 02 : 2NC
01 : 1NC
21 : 2NO-1NC
30 : 3NO
12 : 1NO-2NC
20 : 2NO

EU2B-YS210 ➃EU2B-YS2110 ➃ EU2B-YSK210➃➂

EU2B-YSK2110➃➂

EU2B-YS201➃

EU2B-YS2101➃ EU2B-YSK201➃➂

EU2B-YSK2101➃➂

EU2B-YS220 ➃EU2B-YS2120 ➃ EU2B-YSK220➃➂

Mounting

L

NO

1

●

EU2B-YSK2120➃➂

NC
NO

3
1

EU2B-YS202➃

EU2B-YS2102➃ EU2B-YSK202➃➂

EU2B-YSK2102➃➂

NO
NC

3
1

EU2B-YSK2111➃➂

NC
NO

3
1

NC
NO
NO
NO
NC
NC
NC
NO
NO
NC
NO
NC
NC

3
1
2
3
1
2
3
1
2
3
1
2
3

●

EU2B-YS211➃
●
●
●
●
●
●

EU2B-YS230 ➃EU2B-YS203 ➃●●EU2B-YS221➃

EU2B-YS2111➃ EU2B-YSK211➃➂

EU2B-YS2130 ➃ EU2B-YSK230➃➂

EU2B-YS2103 ➃ EU2B-YSK203➃➂

EU2B-YS2121➃ EU2B-YSK221➃➂

EU2B-YSK2130➃➂

EU2B-YSK2103➃➂

EU2B-YSK2121➃➂●●

EU2B-YS212➃●●

EU2B-YS2112➃ EU2B-YSK212➃➂

EU2B-YS2R11➃ N/A

EU2B-YSK2112➃➂

Maintained

Maintained

R

L

R

L

EU2B-YS2J10 ➃EU2B-YSK2J10➃➂

EU2B-YS2J01➃

EU2B-YSK2J01➃➂

EU2B-YS2J20 ➃EU2B-YSK2J20➃➂

EU2B-YS2J02➃

EU2B-YSK2J02➃➂

EU2B-YS2J11➃

EU2B-YSK2J11➃➂

EU2B-YS2J30 ➃EU2B-YSK2J30➃➂

EU2B-YS2J03 ➃EU2B-YSK2J03➃➂

EU2B-YS2J21➃

EU2B-YSK2J21➃➂

EU2B-YS2J12➃

EU2B-YSK2J12➃➂

●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●

EU2B-YSK2R11➃➂ N/A

Key is removable in all maintained positions. Specify key removal position in place of ➂ in the part number. See table.
Specify a terminal style in place of ➃ in the part number: F (Finger-safe terminal), C (Exposed screw terminal).

➂ Key Removable Option Codes (2-position)

2-position, 2-position/inverse cam
Selector Switch
Key Selector Switch
LR

j

Contact
k Block
Position
l

L

Code

R

j Contact
Block

k Position
l

4

R

●

●
●

Key Selector Switches

Operator Position
Contact●●

Selector Switches

DescriptionA

Key removable in any positionB

Key removable in left positionC

Key removable in right position

3 Position Selector Switches
Selector Switches
Operator Position
Contact

Mounting

L

NO

1

●

NO

3

NO

2

NO

3

NC

1

NC

3

NC

2

NC

3

NO

1

NC

3

NC

1

C

R

Maintained

L

C

R

Spring Return from
Right

L

C

R

Key Selector Switches

Spring Returnfrom Left

L

C

Spring Return Two
Way

R

L

C

R

Maintained

L

C

R

Spring Return from
Right

L

C

R

Spring Return from
Left

L

C

R

Spring Return Two
Way

L

C

EU2BYS320➃

EU2B-YS3120➃

EU2B-YS3220➃

EU2B-YS3320➃

EU2B-YSK320➃➂

EU2B-YSK3120➃➂

EU2B-YSK3220➃➂

EU2BYSK3320➃➂

EU2BYS320N1➃

EU2B-YS3120N1➃

EU2BYS3220N1➃

EU2BYS3320N1➃

EU2BYSK320N1➃➂

EU2BYSK3120N1➃➂

EU2BYSK3220N1➃➂

EU2BYSK3320N1➃➂

EU2BYS302➃

EU2B-YS302➃

EU2B-YS3202➃

EU2B-YS3302➃

EU2B-YSK302➃➂

EU2B-YSK302➃➂

EU2B-YSK3202➃➂

EU2BYSK3302➃➂

EU2BYS302N1➃

EU2BYS3102N1➃➂

EU2BYS3202N1➃➂

EU2BYS3302N1➃

EU2BYSK302N1➃➂

EU2BYSK3102N1➃➂

EU2BYSK3202N1➃➂

EU2BYSK3302N1➃➂

EU2BYS311➃

EU2B-YS311➃

EU2B-YS3211➃

EU2B-YS3311➃

EU2B-YSK311➃➂

EU2B-YSK311➃➂

EU2B-YSK3211➃➂EU2BYSK3311➃➂

EU2BYS311N1➃

EU2B-YS3111N1➃

EU2BYS3211N1➃

EU2BYS3311N1➃

EU2BYSK311N1➃➂EU2BYSK3111N1➃➂EU2BYSK3211N1➃➂EU2BYSK3311N1➃➂

●
●

●
●

●
●

NO

3

NO

1

NC

2

●

EU2BYS311N2➃

EU2B-YS3111N2➃

EU2BYS3211N2➃

EU2BYS3311N2➃

EU2BYSK311N2➃➂

EU2BYSK3111N2➃➂

EU2BYSK3211N2➃➂

EU2BYSK3311N2➃➂

NC

2

●

EU2B-YS3111N3➀NO

3

EU2BYS311N3➃

EU2BYS3211N3➀

EU2BYS3311N3➀

EU2BYSK311N3➃➂

EU2BYSK3111N3➃➂

EU2BYSK3211N3➃➂

EU2BYSK3311N3➃➂

NO

2

●

EU2BYS311N4➃

EU2B-YS3111N4➃

EU2BYS3211N4➃

EU2BYS3311N4➃

EU2BYSK311N4➃➂

EU2BYSK3111N4➃➂

EU2BYSK3211N4➃➂

EU2BYSK3311N4➃➂●

EU2BYS330➃

EU2B-YS3130➃

EU2B-YS3230➃

EU2B-YS3330➃

EU2B-YSK330➃➂

EU2B-YSK3130➃➂

EU2B-YSK3230➃➂

EU2BYSK3330➃➂●

EU2BYS303➃

EU2B-YS3103➃

EU2B-YS3203➃

EU2B-YS3303➃

EU2B-YSK303➃➂

EU2B-YSK3103➃➂

EU2B-YSK3203➃➂

EU2BYSK3303➃➂●

EU2B-YS3
21N1➃

EU2B-YS3121N1➃

EU2BYS3221N1➃

EU2BYS3321N1➃

EU2BYSK321N1➃➂EU2BYSK3121N1➃➂EU2BYSK3221N1➃➂EU2BYSK3321N1➃➂

EU2B-YS3
12N1➃

EU2B-YS3112N1➃

EU2BYS3212N1➃

EU2BYS3312N1➃

EU2BYSK312N1➃➂

EU2BYSK3112N1➃➂

EU2BYSK3212N1➃➂

EU2BYSK3312N1➃➂

●
●

●
●

NC

3

NO

1

●

NO

2

●

NO

3

NC

1

NC

2

NC

3

NO

1

NC

2

NO

3

NC

1

NO

2

NC

3

●

●
●
●

●

Specify a terminal style in place of ➃ in the part number: F (Finger-safe terminal), C (Exposed screw terminal).

Key is removable in all maintained positions. Specify key removal position inplace of ➂ in the part number. See table.

3-position, 3-position/inverse cam
Selector Switch
Key Selector Switch➂ Key Removable Option Codes (3-Position)

C
L

R

Code

C
R
j

Contact
k Block
Position
l

L

A
B
C
D
E
G
H

R
j

Contact
k Block
Positionl5

Description

Key removable in any position
Key removable in left and center positions
Key removable in center and right positions
Key removable in center position
Key removable in left and right positions
Key removable in left position
Key removable in right position)

CONTROL BOXES
1 control unit

2 control units

3 control units

4 control units

EC2BB51B051N3➀-U

6 control units

8 control units

10 control units

EC2BB32B042N2➀-U

EC2BB32B062N2➀-U

EC2BB52B082N3➀-U

EC2BB52B102N3➀-U

2 columns

1 column

EC2BEC2BEC2BEC2BB21B011N2➀-U B21B021N2➀-U B31B031N2➀-U B51B041N3➀-U

4 control units

5 control units

9 control units

12 control units

15 control units

18 control units

EC2BB33B063N2➀-U

EC2BB33B093N2➀-U

EC2BB53B123N3➀-U

EC2BB53B153N3➀-U

EC2BB63B183N3➀-U

3 columns

6 control units

Thread Size
Code
Description➀ Terminal Block Style
Code
Description

M1
M2
M3
M4
M5
N1
N2
N3
N4

blank
C
F

M16
M20
M25
M32
M40
NPT1/2
NPT3/4
NPT1
NPT1 1/4

no terminal block
Exposed screw terminals
Finger-safe terminals

Other thread size options available. To specify different
thread sizes, use table at left to select a code to use inplace of N2 or N3 in the part number.
Specify terminal block style in place of ➀ in part number(standard versions do not contain a terminal block).

STANDARD CONTROL STATIONS
1 Control Unit × 1 Column
1 pushbutton
31

j

➀

42

1 pilot light
X1

X2 j

EC2B-1102BN2N 1-U

EC2B-1102BN2N  2-U

Flush momentary
1NO contact
Nameplate ON
Button color: black, green, red, and white
1NO-1NC contact

Flush momentary
1NC contact
Nameplate OFF
Button color: black, green, red, and white

Flush momentary
1NO-1NC contact
Nameplate OFF
Button color: black, green, red, and white

EC2B-1101BN2  3-U

EC2B-1101BN2 13-U

EC2B-1101BN2 14-U

EC2B-1101BN2  6-U➀ 120V AC
Illumination color: red

240V AC
Illumination color: red

24V AC/DC
Illumination color: red

120V AC
Illumination color: green

240V AC
Illumination color: green

24V AC/DC
Illumination color: green

3j2

Flush momentary
1NO-1NC contact
Nameplate ON
Button color: black, green, red, and white

EC2B-1101BN2 12-U

EC2B-1106BN2N 1-U
1

EC2B-1102BN2N  4-U

EC2B-1101BN2 11-U

1 selector switch

OFF ONEC2B-1102BN2N  3-U

4Knob selector
2-position main➀ tained
1NO-1NC contact
Name plate
OFF-ON

1 key selector switch

OFF ON

1 e-stop switch

EC2B-1106BN2N  4-U

Key selector
1 3
2-position maintained
OFF ONat allj ➀ (removable
positions)1NO-1NC contact
2 4Nameplate OFF-ON

EC2B-1102BN2N 7-U
1 1

Emergency stop switch
2NC contactj ➀ Nameplate EMERGENCY STOP
Button color (red)2 2

OFF ON

2 Control Units × 1 Column
2 flush pushbuttons
3
4
1

3

Flush momentaryj ➀ 1NO contact, Nameplate ON

Button color (black, green, red, and white buttons)k2

Flush momentary➁ 1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

1 pilot light/1 pushbutton
X1

2 Mushroom Pushbuttons

EC2B-2102BN2N 1-U

X2 j

3

1

4

2

1

4
3

2
1

4

2

j
k

EC2B-2102BN2N  4-U
Mushroom momentary➀ 1NO-1NC contact, Nameplate ON
Button color (black)
Mushroom momentary 1NO-1NC contact, Nameplate OFF
Button color (red)EC2B-2110BN2N  5-U

EC2B-2110BN2N  6-U

EC2B-2110BN2N  3-U➀

120V AC
Illumination color: red

240V AC
Illumination color: red

24V AC/DC
Illumination color: red➁

Flush momentary
1NO-1NC contact
Name plate STOP
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact
Name plate STOP
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact
Name plate STOP
Button color (black, green, red, and white buttons)kSpecify terminal style code in place of  in part no. C (standard screw terminal), F (finger-safe screw terminal)6

2 Control Units × 1 Column
1 pilot light / 1 selector switch
X1

X2 j

1

3

OFF ONk2

4

EC2B-2117BN2N  3-U

EC2B-2117BN2N  4-U

120V AC➀
Illumination color: red

240V AC
Illumination color: red
OFF ONKnob, 2-position,➁ 1NO-1NC contact
Maintained, Name plate OFF-ON

Knob, 2-position,
1NO-1NC contact
Maintained, Name plate OFF-ON

OFF ON

3 Control Units × 1 Column
1 pilot light / 2 pushbuttons
X1

EC2B-3110BN2N  5-U

EC2B-3110BN2N  6-U

EC2B-3110BN2N  3-U

120V AC➀
Illumination color: red

240V AC
Illumination color: red

24V AC/DC
Illumination color: redkFlush momentary➁ 1NO contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO contact, Nameplate ON
Button color (black, green, red, and white buttons)lFlush momentary➂ 1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

X2 j
4
3
2
1

3 pushbuttons

1 meter / 2 pushbuttons

EC2B-3102BN2N 1-U
3

1

4
3

2
1

4
3

2
1

4

2

A

j

➀

k

Flush momentary
1NO-1NC contact,➁ Blank nameplate
Button color (black, green, red, and white buttons)

l

➂

3

EC2B-3152BN2N 1-U➀

Specify input, capacity, and scalek➁

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)l➂Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

j
1

4
3

2
1

4

2

Specify the meter's capacity and scale in place of  in the part number

4 Control Units × 1 Column
2 pilot lights / 2 pushbuttons

EC2B-4110BN3N  5-U

EC2B-4110BN3N  6-U

EC2B-4110BN3N  3-U

240V AC, Illumination color: red

24V AC/DC, Illumination color: red

X2 j➀ 120V AC, Illumination color: red

X1

X2➁ 120V AC, Illumination color: green

240V AC, Illumination color: green

24V AC/DC, Illumination color: green

3

1

4
3

2
1

Flush momentary➂ 1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

4

2

Flush momentary➃ 1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

X1

k
l
m

1 pilot light / 2 pushbuttons /1 selector switch
X1

EC2B-4113BN3N  5-U

EC2B-4113BN3N  6-U

EC2B-4113BN3N  3-U

X2 j➀ 120V AC, Illumination color: red

240V AC, Illumination color: red

24V AC/DC, Illumination color: red

3

1

4
3

2
1

Flush momentary➁ 1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

4

2

Flush momentary➂ 1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

1

3

Knob, 2-position, maintained➃ 1NO-1NC contact
Nameplate HAND-AUTO

Knob, 2-position, maintained
1NO-1NC contact
Nameplate HAND-AUTO

Knob, 2-position, maintained
1NO-1NC contact
Nameplate HAND-AUTOklm

HAND AUTO

HAND AUTO

HAND AUTO

HAND AUTO

5 Control Units × 1 Column
2 pilot lights / 2 pushbuttons /1 selector switch
X1

OFF ON

X2 j

X1

X2

3

1

4
3

2
1

4
2

2
4

k
l
m

n
1 3

EC2B-5113BN3N  5-U

EC2B-5113BN3N  6-U

EC2B-5113BN3N  3-U➀ 120V AC, Illumination color: red➁ 120V AC, Illumination color: green

240V AC, Illumination color: red

24V AC/DC, Illumination color: red

240V AC, Illumination color: green

24V AC/DC, Illumination color: green

Flush momentary➂ 1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate ON
Button color (black, green, red, and white buttons)

Flush momentary➃ 1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color (black, green, red, and white buttons)

Flush momentary
1NO-1NC contact, Nameplate OFF
Button color black, green, red, and white buttons)

Knob, 2-position, Maintained,➄ 1NO-1NC contact,
Name plate HAND-AUTO

Knob, 2-position, Maintained,
1NO-1NC contact
Name plate HAND-AUTO

Knob, 2-position, Maintained,
1NO-1NC contact
Name plate HAND-AUTO

HAND AUTO

Specify terminal style code in place of  in part no. C (standard screw terminal), F (finger-safe screw terminal)

7

HAND AUTO

HAND AUTO

DIMENSIONSAll dimensions in mm

Pilot Lights

Control Units

Shown with finger-safe contacts

Pushbuttons

Shown with finger-safe contacts

ø40

39.0

32.5
61.4

13.3

Extended

24.5

67.7

62.0

ø 40.0Mushroomø 24.048.0

ø 40.033.0

13.3

1.0 to 4.5 (panel thickness)
67.7

20.3

1.0 to 4.5 (panel thickness)
67.7

ø40

32.2

32.0

ø 40.0

Flush

19.3
20.3

67.7

Emergency Stop Switches
Shown with finger-safe contacts

Meters

32.2

35.0

47.4

ø 28.08.0

38.4

ø 40.0Shown with finger-safe contacts

1.0 to 4.5 (panel thickness)
67.7

1.0 to 4.5 (Panel thickness)

ø 64.0

Selector Switches

50 min (*note)

+0.2

4.8 0

1.0 to 4.5 (panel thickness)
67.7

70 min

33 0

+0.5

.5
+0 0

0.5

37.3

62.1

Mounting Hole Dimensions
ø3

32.2
47.4

33.5

38.4

ø 40.0Shown with finger-safe contacts

Key Selector Switch

Shown with finger-safe contacts

47.4

38.4

ø 40.0Panel thickness: 1.0 to 4.5 mm.
*Note: The meter can be mounted on the top mounting holes of a standard 50mm mounting centers. The meter can be mounted on any mounting hole with a 70mm or larger mounting center.

32.2

27.3

1.0 to 4.5 (panel thickness)
67.7

8

1, 2 control units x 1 column

2, 3, 4, 5 control units x 2 columns

weight: 1.2kg/1.4kg

weight: 3.8/4.2/4.6/5.0 kg
4-ø7 (mounting hole)

110
95

10 6

1.5
Mounting tab

4 control units
70

70

230
220
210

3 control units
70

5 control unitsA(mounting
hole)

Hinge

70

2×50P

100

142

(mountin ghole )

170

4-ø10

Reducer
M4 grounding terminal
M5 lid mounting screw

Hinge

2

Mounting tab

4×50P

36.5

36

50

2 control units

106

3×50P

50

(mountinghole)

2 control unitsR

1 control unit

(mounting
hole)

115

Reducer
M4 grounding terminal
M5 lid mounting screw

70

3 control units x 1 column

Dimensions

2, 3, 4, 5 control units x 3 columns

weight: 1.8kg

No. ofControl Units

AR

2 or 3250 180

4 or 5350 280weight: 4.8/5.2/6.5/7.1 kg

3 control units
4-ø7 (mounting hole)
106(mounting
hole)

1.5
Mounting tab

320
310
300

3×50P

110
95

140

140
50

2×50P

4 control units

2 control units

115

106

2

Mounting tab

R

Hinge

4×50P

Reducer
M4 grounding terminal
M5 lid mounting screw

Hinge

A

5 control units
140(mounting
hole)

2×50P

140

36.5

192

150

220

(mounting
hole)

4-ø10

(mounting hole)

3 control units

70

36

70

Reducer
M4 grounding terminal
M5 lid mounting screw

Dimensions

4, 5 control units x 1 column

2 or 3250 180

4 or 5350 280weight: 8.1kg
115
110
95

5 control units

320
310
300

4-ø7 (mounting hole)
106

1.5

(mountinghole)

Mounting tab

Control Unit
Mounting Holes
140

106

2
Mounting tab

4-ø10

70

9

70

330

(mounting
hole)

Hinge

36.5

Reducer
M4 grounding terminal
M5 lid mounting screw

Hinge

400

5×50P

322

250

(mounting
hole)

350

(mounting
hole)

36

4x40P

3x50P

A

6 control units x 3 columns

weight: 2.4kg

4 control units

No. ofControl Units

Reducer
M4 grounding terminal
M5 lid mounting screwRTerminal Blocks

Fittings and Reducers

Terminal blocks are not supplied with the standard control boxes (without wiring). When wiring
inside the control box is required, specify the wiring circuit. The terminal block type used on thecontrol boxes with wiring depends on the terminal style of the control unit.

Reducers installed at the bottom of the control box are as follows: 1 column: 1 reducer, 2 columns: 2 reducers, 3 columns: 3 reducers. Material is nickel-plated brass. Use cable lead-in fittings
that are commercially available. See the following table for optional reducers.
Control Box Style
Part No.
Thread Size
Symbol
UL c-UL

C terminal style
exposed screw terminal
ET2A-8PE
polyamide
IECEx TUR 15.0043U,
TÜV 15 ATEX 7799U

34
22

1 column(1 to 3 control units)
2, 3 columns(2, 3 control units)

101
123

F terminal style
1, 2, 3 columns(4, 5 control units)
3 columns(6 control units)

32
22

finger-safe screw terminal
IP20 clamp terminal: 264-238 (WAGO)
polyamide
IECEx PTB 04.0003U, PTB 98 ATEX
3129U

84
96

1-column 3 units(1 terminal block/ 8 poles)

1-column 4, 5 units(1 terminal block/ 8 poles)

2-column 4,5 units(4 terminal blocks/ 32
poles)

3-column 2, 3 units(3 terminal blocks/ 24
poles)

3-column 4, 5, 6 units(6 terminal blocks/ 8
poles)

M16
M20
M25
M32
NPT 1/2
NPT 3/4
NPT 1
M25
M32
M40
NPT 3/4
NPT 1
NPT 1 1/4

M1
M2
M3
M4
N1
N2
N3
M3
M4
M5
N2
N3
N4















: Standard reducer : non-standard reducer
The reducers in the table above are for replacement use only. All EC2B boxes are supplied witha reducer that has been secured to the housing per UL regulations. If it is necessary to replace areducer, the user should follow appropriate UL standards for securing to EC2B housing.

The number of terminal blocks, poles, and the installation direction that can be installed on thecontrol box are as follows:
1-column 1, 2 units(1 terminal block/8 poles)EC9E-H3M16E-UL
EC9E-H3M20E-UL
EC9E-H3M25E-UL
EC9E-H3M32E-UL
EC9E-H3NPT1E-UL
EC9E-H3NPT2E-UL
EC9E-H3NPT3E-UL
EC9E-H4M25E-UL
EC9E-H4M32E-UL
EC9E-H4M40E-UL
EC9E-H4NPT2E-UL
EC9E-H4NPT3E-UL
EC9E-H4NPT4E-UL

2-column 2, 3 units(2 terminal blocks/16 poles)

ACCESSORIESAll dimensions in mm

Nameplates
Nameplate Inserts

Used for pilot light, pushbutton, selector switch, and key selector switch.

EU9Z-NM

Appearance

Dimensions
40(35)

Marking Plate

4.5
28.5

Part Number(6.5)

Appearance

0
ø4

1.5

LegendPart Number

Blank
ON

EU9Z-NP0
EU9Z-NP1OFF

EU9Z-NP2START

EU9Z-NP3STOP

EU9Z-NP4

OFF-ON

EU9Z-NP31

HAND-AUTO

EU9Z-NP35

HAND-OFF-AUTO

EU9Z-NP53

Material: Aluminum
Installing the Insert to the Nameplate

Removing the Insert from the Nameplate

Insert➁Flat screwdriver

Insert➀Nameplate

To remove the Insert, insert a flat screwdriver between the Insert and Nameplate.

10

Rubber Boots

Emergency Stop Switch Padlock CoverAppearance

Description/Usage

Used with EU2B-YBV emergency stop switch to maintain the switch in the latched status.

Part Number

For Flush Pushbuttons

Appearance
Not for use with name plate

EU9Z-DB1

For use with name plate

EU9Z-DB1N

Part Number

Dimensions
Base

46

For Flush Pushbuttons
EU9Z-PCE

8
32.2

50
55.4

For Extended Pushbuttons
Not for use with name plate

Coating: yellow Material: Stainless Steel

EU9Z-DB2

Mounting Hole Plug
Used to plug unused mounting holes (ø30.5) on the mounting panel.

For Extended Pushbuttons

Appearance

23.2

EU9Z-DB2N

ø40

For use with name plate

Part Number Dimensions / Usage

EU9Z-BP

13.3

Emergency Stop Switch Nameplate Stickers
Appearance

LegendPart Number

Buttons

Dimensions

Appearance
ø5

ø4

ø4

EU9Z-NVS0
0.5

0.5

8
ø5

8
ø5

Emergency
Stop

8

8

ø5

Blank

EU9Z-NVS27

ø4

Style

Part Number

Flush

HW1A-B1➀

Extended

HW1A-B2➀

ø40 Mushroom

HW1A-B4➀

ø4

0.5

0.5

Material: yellow synthetic paper Legend: black

Button Color CodeSpecify a color code in place of ➀in the Ordering Number.
R : redG : green
B : blackY : yellow
W : white
S : blue

Padlock Cover
EU2B-YB2 extended pushbutton: to maintain latched status
EU2B-YB1 flush pushbutton/EU2B-YSK key selector switch: to prevent operation
AppearancePart
NumberMaterial: Polyacetal

LensesDimensions

Appearance

46

32.1

EU9Z-PC44

8

1.0 to 10.5
(panel thickness)

24.5

Material: AS resin (gasket supplied)

Note: mounted to outside of enclosure with screws, not provided by IDEC
Material: Stainless Steel

11

Lens Color

Part Number

Red
Green
Amber
YellowWhiteBlue

EU9Z-LR
EU9Z-LG
EU9Z-LA
EU9Z-LY
EU9Z-LW
EU9Z-LS

Control Box Shade

LED Lamps

Shape

Part No.

D

Operating
Voltage
6V AC/
DC±10%

Current Draw
AC

DC

8mA

7mA
(A, R, W)
5.5mA(G, PW, S)

Part
Number
LSTD-6➀

12V AC/
DC±10%

11mA

10mA

LSTD-1➀

24V AC/
DC±10%

11mA

10mA

LSTD-2➀Illumination Color CodeSpecify a color code in placeof ➀ in the part number
R : redG : greenA : amber
PW : white
S : blue
Use a white (PW) LED withyellow (Y) lens.

Base

W

EC9Z-F2A21M
EC9Z-F2A31M

H

EC9Z-F2A51
EC9Z-F2A32
BA9S/13
Material: stainless steel
Thickness: 1mm
Photo: Part No. EC9Z-F2A52

EC9Z-F2A52
EC9Z-F2A33
EC9Z-F2A53
EC9Z-F2A63

Applicable
Control Box
EC2B-11*B
EC2B-21*B
EC2B-31*B
EC2B-41*B
EC2B-51*B
EC2B-22*B
EC2B-32*B
EC2B-42*B
EC2B-52*B
EC2B-23*B
EC2B-33*B
EC2B-43*B
EC2B-53*B
EC2B-63*B

Dimensions (mm)
H

W

D

180

160

160

230

160

160

360

160

160

260

420

160

360

420

160

260

510

160

360

510

160

410

510

160

Protects control units from direct sunlight and rain. The surface of the control box shade is uncoated.
Can be installed by tightening to the mounting tabs on the control box.

OPERATING INSTRUCTIONS
Installation Area
Determine the operating current so that the total heat value of 1 wire bundle is below 300 [A2 ×wires]. Also, when calculating the heat value, take the current fluctuation (10%) into consideration. [calculation example: EC2B-41**B (8 circuit)]➀ Apply 10A to 1 circuit, 1A to the remaining 7 circuits:{(10A × 1.1)2 × 2 wires} + {(1A ×1.1)2 × 14 wires} ≈ 259 (can be used because < 300)
➁ Apply 10A to 1 circuit, 2A to the remaining 7 circuits:{(10A × 1.1)2 × 2 wires} + {(2A × 1.1)2× 14 wires} ≈ 310 (cannot be used because > 300)
See the table below for the allowable operating current when applying current evenly to eachcontrol box.

Do not install the EC2B control box in an environment where more than IP65 protection degree(more than Type 4X in North America) is required.
Use the EC2B control box under ambient temperature of –20 to +50°C. If the control box is
exposed to direct sunlight and the surface temperature may rise above 50°C, provide a shade tokeep the surface temperature below 50°C.

Installation

Use four M6 bolts for 1-column, four M8 bolts for 2- and 3-column, or other methods withequivalent strength to install the control box. Mounting tab thickness is 1.5mm for 1 column and
2mm for 2, 3, and 4 columns.
• If bolts become may loose due to vibration, use spring washers.
• If bolt corrosion is anticipated, use anti-corrosion bolts or other countermeasures.

Allowable Operating Current

Notes on Emergency Stop Switches
When using the emergency stop switches on safety-related parts of the control system, observe
safety standards and regulations of the relevant country or region. Also be sure to perform a risk
assessment before operation.

Opening/Closing the Lid
Use a Philips screwdriver to loosen lid mounting screws. While holding the unhinged side, open
the lid slowly without exerting excessive force on the hinge.
Before closing the lid, make sure of the following:• No foreign substances are on the packing or joint surfaces.
• No displacement of the waterproof packing.
• Wires are not caught between the joint surfaces.
• Next, close the lid slowly and tighten the screws to a proper torque of 1.6 to 2.4 N·m.

Limitation of the Operating Current
Major heat sources comes from the wiring which is connected to the control box. Therefore,
not only the operating current but wiring conditions (size, no. of wires, no. of wire bundles) may
cause temperature rise. When wiring, observe the following conditions.
Stranded wire: 1.5 to 2.5 mm2 (UL-c-UL certified) / Solid wire: ø1.2 to ø1.6 mm (16 to 14 AWG)
• Maximum no. of wires per bundle: 16• Maximum operating current: 10A
When using the control box under an operating environment of 40°C minimum, use a heat
resistant cable of 70°C minimum.

Control
Box
Part No.

Max.
No. ofCircuits

EC2B-11
EC2B-21
EC2B-31
EC2B-41
EC2B-51
EC2B-22
EC2B-32
EC2B-42
EC2B-52
EC2B-23
EC2B-33
EC2B-43
EC2B-53
EC2B-63

3
6
9
12
15
12
18
24
30
18
27
36
45
54

Max No. of Wires per Bundle (*1)[wires] ([wires]×[bundle])
Without terminalWith terminal
blocksblocks16 (16×1)
8 (8×1)16 (16×1)
8 (8×1)16 (16×1)
8 (8×1)16 (16×1)
16 (16×1)
16 (16×1)
16 (16×1)
32 (16×2)
16 (8×2)
32 (16×2)
16 (8×2)
32 (16×2)
32 (16×2)
32 (16×2)
32 (16×2)
48 (16×3)
24 (8×3)
48 (16×3)
24 (8×3)
48 (16×3)
48 (16×3)
48 (16×3)
48 (16×3)
48 (16x3)
48 (16x3)

Allowable Operating
Current(reference) (*2)
7A
5A
4A
3A
3A
5A
4A
3A
3A
5A
4A
3A
3A
3A

*1: Make sure that the number of wires per bundle is a maximum of 16 by reducing the wiring or by jumper
wiring. The maximum number of wires per bundle may need to be further reduced depending on thewire size, lead-in fitting, or conduit size.
*2: The allowable current value (reference) when applying current evenly to all circuits of the maximum
number of circuits.

12Wiring

Removing and Installing the Contact Unit / Lamp Unit

Wiring Construction

To remove the contact unit or the lamp unit from the operator, pull the protruding yellow part ofthe locking lever outwards as shown in the figure below using a screwdriver, and turn it to theleft. The contact unit or lamp unit can be removed.

Observe the laws and regulations in each country concerning wiring construction.Use cablewiring or metal conduit wiring for installation in hazardous locations. If foreign objects or water
may enter the box, install a sealing fitting near the cable entry of the box and seal the control box
using a compound. Standard type control boxes do not contain a terminal block. Wire the control
units directly.

EU2B-YB/ YBV
EU2B-YS/ YSK

8.0 max.

∗£1.8 max.

∗£1.8 max.

min.

6.9 max.

6.9 max.
3.6 minø3.6
5.5 min.

Without
insulating
sheathWith
insulating
sheathInsulation
sheathWirelocking leverindicator (red)8.0 max.

Panel mounting for the operator, lens unit and meter

For IP20 clamp terminal(WAGO: 264-238)

Remove the locking ring from the operator and check that the rubber gasket is in place. Insert theoperator from the panel front into the panel hole. Place the projection on the operator with TOP.2 m

Insulation sheathø4

8.5 max.

in.
.2 m
ø4

Insulation sheathin.

(Ring terminal)(Ring terminal)
8.5 max.

➂(Pull)(Ferrule)∗ Dimensions after crimping

For screw terminal ET2A-8PE

locking leverTOP

When the contact unit is removed from the emergency stop switch operator, the NO contact
closes and the NC contact opens.
Do not turn the locking lever when the contact unit is removed from the operator (the red indicator protruding out, see the figure below) or the switch can be damaged.

Ring and spade terminals cannot be used for EU2B control units with IP20 finger-safe terminals.
Ring and spade terminals cannot be used for IP20 clamp type terminal blocks. When connecting
two ferrules to an EU2B control unit, use ferrules without insulating sheath.

5.5 min.

(Pull)

locking leverApplicable crimping terminal

3.4 max.

(Turn)➂(Ring terminal)(Lift)➁➁

Stranded wire: 1.25 to 2.5 mm2, solid wire: ø1.2 to ø1.6 mm (AWG16 to 14). Do not connect morethan 2 wires to the same terminal.

➀

EU2B-YL(Turn)

Applicable Wires

(Spade terminal)➀(Lift)

5 to 6.6

5 to 6.6

Recommended crimping terminal (WAGO) Ferrule with insulating sheath: 216-204
Ferrule without insulating sheath: 216-104 Crimping plier: 206-204

marking upward and the recess on the mounting panel in the same direction. Meters have no
projection.
Tighten the locking ring using ring wrench XN9Z-T1 to a torque of 2.5 Nm. When using a nameplate or padlocking cover, install it between the operator and panel. Make sure that the grooveof the namplate or padlocking cover and the projection on the TOP marking of the operator are in
the same direction.
Note: The locking ring for emergency stop switches and meter
Insulation Sheathis metallic. The meter can’t mount the nameplate or podlocking
cover.

Recommended Tightening Torque
EU2B control units (M3.5) and ET2A-8PE terminal block (M4): 1.0 to 1.3 N·m

Warning
Incorrect wiring may cause fire hazard. Observe the following conditions.
Be sure to install an insulating sheath on the crimping terminal or the crimping terminal withinsulation.

Installing the contact unit and lamp unit

5.5 to 6.0

Wire

All dimensions in mm.
To install the contact unit, place the TOP marking on the operator
and the TOP marking on the contact block adapter in the same
direction, and then attach the contact unit to the operator. Then turn the locking lever to the right.
Follow the same procedure when installing the lamp unit.
When installing the lamp unit, check that the inner lens is not loose.
The contact block adapters for emergency stop switches cannot be used for pushbuttons, selector, or key selector switches.

When connecting solid wires or stranded wires directly, strip the insulation as mentioned below,
and insert the wire all the way in.
EU2B Control units: 8.6 mm maximum
IP20 crimping terminal: 8 to 9 mm
When using stranded wires, make sure that there are no wire whiskers.
Make sure that the spade crimping terminals and ferrules are inserted all the way in.
Use insulated ring terminals for the ET2A-8PE terminal block. Use only applicable crimping
terminals and do not directly connect stranded wires or solid wires.

TOP marking

Projection

Nameplate or
Padlocking cover
Recess on the panel

RubbergasketLocking ring

Recess on the
Nameplate
Nameplategasket

EU2B-YL

EU2B-YB
EU2B-YS
TOP marking

TOP marking

➀

➀
➁

➁
TOP

inner lens13Removing the Contact Block

Installing EU9Z-PC Padlock CoverTo remove the contact block, insert a flat screwdriver under the latch of the contact block adaptor
and disengage the latch as shown in the figure below.

(Flush/extended pushbtton/key selector switch)
EU9Z-PC can be installed in the following two ways.
Remove the cover in the reverse step of installing the cover. Do not install or remove the coverforcefully, or it will cause failure.
[Installation A]
Cover





Flat Screwdriver

Installing the Contact block[Installation B]
This method is effective when the neighboring control unit interferes when installing in method
A.

When installing the contact block after maintenance or wiring, make sure that the contact
configuration is correct. Installing the contact block in the incorrect position or incomplete installation may cause malfunction of the switch.
Remove the contact block from the operator before installing the contact block to the contact
block adaptor. Also make sure that the contact block is correctly installed to the contact block
adaptor before attaching the operator. Do not install the contact block adaptor with the operator
attached. Otherwise, malfunction may result.




Cover



Protective Grounding
Protective grounding must be performed according to the installation environment and rating
requirements. Observe laws and regulations set by each country.
• Connect the M4 grounding terminal of the EC2B control box to a proper ground (grounding
resistance 10Ω maximum). When operating the EC2B control box by connecting to circuitsof 300V or below, the grounding resistance must be 100Ω maximum.
• When using cables, connect one of the cable cores to the grounding terminal in theenclosure.
• If the grounding terminal in the enclosure cannot be used, use the M4 grounding terminalon the outside of the enclosure.
Recommended tightening torque:M4: 1.0 to 1.3 Nm
M6: 3.9 to 5.4 Nm• For grounding, use appropriate wires (size, material, insulation) that can tolerate the expected maximum grounding current. Be sure to protect the grounding wire with protection,such as metal conduit, from external damage.

Accessories
Padlock Cover
The following padlocks and hasps can be used.
(Padlock Size)a

Flush/extended pushbutton/key selector
switchEmergency Stop Switchbø3.5 to7.0 mmø5.5 to7.0 mmc

15 mm min.

70 mm max.

——

Installing EU9Z-DB Rubber Boots
To install the rubber boot on flush and extended pushbuttons, place the rubber boot on the cap
and push the rubber boot holder straight. The notches around the rubber boot must show evenly.
Rubber boot holder

NotchesRubber bootCap

Notches forscrewdriver

Push-in position

Push the rubber boot holder further around on the two notches on the holder so that the holder
fits the button completely
Make sure that the rubber boot and rubber boot holder are installed straight.
On Nameplate Types, the EU2B and the rubber boot holder must be aligned so that when installed, the anti-rotation projection on the EU2B comes to the center of the groove on the holder.
Make sure that the rubber boot is installed completely, otherwise water droplets might enter therubber boot, but no water will enter the control box.

Align

Recommended Hasp
Manufacturer

Part No.

Panduit

PSL-1, PSL-1A, PSL-1.5, PSL-1.5A, PSL-HD1

Master Lock

420, 421
To remove the rubber boot from the flush and extended pushbuttons, gently insert the slotted screwdriver (0.5t x 4w or below)
inside a notch on the rubber boot holder and tilt to the direction
shown by the arrow ➀. To prevent damage, do not apply excessive
force to the EU2B when removing the rubber boot.

Padlock and hasp are available in various shapes and sizes. Make sure that they do not interferewith the control units. Note: Not supplied by IDEC.
Keep the total weight of padlock and hasp under 1500g max, otherwise the switch may malfunction or result in failure. No vibration should be applied when padlock or hasp are installed. When
padlock or hasp are disfigured, stop usage immediately.
Ensure that no shock or electric sparks are generated.
When using the plate lock padlock cover with the extended pushbutton, the switch contact may
turn on/off when the cover is being installed. Ensure to provide functional safety measure toprevent unexpected startup.
When using the padlock cover on the safety-related part of the control system, observe safety
standards and regulations of the relevant country or region. Also be sure to perform risk assessment before operation.

14

Maintenance and Inspection

EC2B Control Boxes

EU2B switches should be installed in an appropriate control box.

• EC2B control boxes can be installed only in zones 1 and 2. Do not use in zone 0. In North
America, the EC2B can be installed in Division 2 areas, but cannot be installed in Division
1 areas.
• Turn power off to the EC2B control box before installation, removal, wiring, or maintenance, otherwise explosion, fire hazard, or electric shock may result.
• Special skills and knowledge of explosion protection, electric system installation, and relevant laws/regulations are required to transport, install, wire, operate, repair, and inspect
the EC2B control box. People without such expertise must not use the EC2B control box,
otherwise damage or accident may result.
• Do not modify the EC2B, otherwise damage or accident may result.
• Do not use a damaged EC2B control box, otherwise damage or accident may result.
• W hen connecting external devices, make sure that each cable is connected to the correct
terminal, otherwise electric shock, fire hazard, or explosion may result.
• Use wires of a proper size to meet voltage and current requirements. Incorrect wiring may
cause abnormal temperature rise and lead to fire hazard and explosion.
• Connect the grounding terminal to a proper ground, otherwise electric shock, fire hazard,
or explosion may result.
• Do not sit on or hang from the EC2B control box, otherwise damage, personal injury, or
accident may result.
• Do not open the lid of the EC2B control box when it is energized, otherwise electric shock,fire hazard, or explosion may result.
• Operate the EC2B control box at the rated current and voltage specified in this catalog,
otherwise short-circuiting, fire hazard, or explosion may result.
• When measuring the insulation resistance of the EC2B control box, make sure that
potentially explosive atmosphere of explosive gas or vapor does not exist in the vicinity,
otherwise explosion may result. Also, do not touch the terminals without paying attention,otherwise electric shock will result.
• Do not place any obstacles in front of the nameplate.
• Do not remove the nameplate.
• When opening the lid for wiring, maintenance or inspection, make sure that substancessuch as dust, concrete powder, or metal powder do not enter inside the box, otherwise
contact failure or insulation failure may result.
• Do not drop the EC2B control box during transportation.
• Be sure to open the carton the right way up, otherwise damage or personal injury may
result.
• Check that the product is what you have ordered. Using an incorrect model might result in
malfunction or accident.
• Stop operation immediately if abnormal operation occurs. Otherwise, a secondary accident may occur.
• The surface temperature of the EC2B control box may become extremely hot during operation. Before maintenance or inspection of the EC2B, be sure to wear gloves to prevent
burning your hand.

Maintenance and Inspection Method
Perform daily or periodical maintenance and inspection for items such as damage and temperature rise of the EU2B switches listed in the Maintenance and Inspection table below.
Observe laws and regulations set by each country. Do not open the lid when inspecting the EC2B
while it is energized. Never disassemble the control box. Do not use tools that cause sparks during maintenance and inspection. When using measuring devices, use explosion-protected types.
When the EC2B needs to be disassembled or assembled for maintenance or repair, contact IDEC.

Maintenance and Inspection
Inspection Items

Inspection Method Inspections

Enclosure base

VisualTightening bolt,
screwsVisual, tactile

Packings

VisualConnecting parts

Visual, tactile

Temperature rise

Thermometer, tactile

No rusting
No damages
No loosening
No rustingNo cracks
No apparent deformation
No loosening of screws
No dirt on insulationmaterials
Surface temperature
80ºC max.

Measures
Cleaning
Rust-resistant treatment
Tightening
Cleaning
Replacement
Tightening
Cleaning
Investigate the cause

DisposalObserve laws and regulations set by each country concerning refuse disposal.

Safety Precautions
EU2B Control Units
Use EU2B switches that are applicable for use in hazardous areas (potentially explosive atmosphere where explosive gas or vapor may exist), otherwise explosion or fire hazard may result.
• EU2B switches can be installed only in zones 1 and 2. Do not use in zone 0.
• Turn power off to the EU2B switches before installation, removal, wiring, or maintenance,otherwise explosion, fire hazard, or electric shock may result.
• Do not disassemble, repair, or modify, otherwise damage or accident may result.
• Do not use damaged EU2B switches, otherwise damage or accident may result.
• When connecting external devices, make sure that each cable is connected to the correct
terminal, otherwise electric shock, fire hazard, or explosion may result.
• Use wires of a proper size to meet voltage and current requirements. Incorrect wiring may
cause abnormal temperature rise and lead to fire hazard and explosion.
• Connect the grounding terminal to a proper ground, otherwise electric shock, fire hazard,
or explosion may result.
• Operate the EU2B switches at the rated current and voltage specified in this catalog,
otherwise short-circuiting, fire hazard, or explosion may result.
• Stop operation immediately if abnormal operation occurs. Otherwise, a secondary accident may occur.
• Use explosion-proof electrical equipment that are applicable for use in hazardous areas(potentially explosive atmosphere where explosive gas or vapor may exist), otherwise
explosion or fire hazard may result.

15

EC2B
1-column Control Box Specification Sheet

TO: IDEC Corporation
Company:

TEL:

Contact Person:

FAX:

No. of Control Box

Select the required specifications by checking the checkboxes, and specify the details.

Control box size
£ EC2B-110£ EC2B-210£ EC2B-310£ EC2B-410£ EC2B-510

NP

NP

Nameplate
NP

1

E1

Nameplate (NP)£ No

nameplate

NP

NP

1

1

2

2

E1

1

1

2

2

3

3

3

E1

4

4

E2

5

£ STOP£ EMERGENCY STOP

E2

Material: Acrylic (53 mm × 12 mm, plate thickness 2 mm)
Legend color: black letter, white background
Maximum no. of letters: 19 letters per line (up to 2 lines)£ 1 line

1st line£ 2 lines

2nd line

Control Units
PositionControl Unit Part No.

Control Unit Nameplate

1

£ ON

£ OFF

£ START£ OFF ON

£ HAND AUTO

£ HAND OFF AUTO

£ No nameplate £ Specify letters (

2

£ ON

£ OFF

£ START£ OFF ON

£ HAND AUTO

£ HAND OFF AUTO

£ STOP£ No nameplate £ Specify letters (

3

£ ON

£ OFF

£ START£ OFF ON

£ HAND AUTO

£ HAND OFF AUTO

£ OFF

£ START£ OFF ON

£ HAND AUTO

£ HAND OFF AUTO

E1

ReducerWith specification• Specify wiring diagram when wiring is required.

•£ EMERGENCY STOP
£ Blank
)

£ ON

£ OFF

£ START£ OFF ON

£ HAND AUTO

£ HAND OFF AUTO

£ STOP£ EMERGENCY STOP
£ Blank)

EC2B-110, 210, 310

EC2B-410, 510

NPT 3/4

NPT 1

UL/c-UL, IECEx/ATEX certified

Without specification(standard reducer)£ Blank£ STOP£ No nameplate £ Specify letters (EC2B-110, 210, 310
Code Cable lead-in method£ EMERGENCY STOP)

£ ON

Lead-in Fitting (E1/E2)£ Blank£ STOP£ No nameplate £ Specify letters (5£ EMERGENCY STOP)

£ No nameplate £ Specify letters (4£ Blank)Check

Specification

£
£
£
£
£
£
£

M16

EC2B-410, 510
Cable lead-in method
Code

M20
M25
M32

E2

Reducer

NPT 1/2
NPT 3/4

Check

Specification

£
£
£
£
£
£

M25
M32
M40
NPT 3/4
NPT 1
NPT 1 1/4

NPT 1

• Specify when other accessories are required.

IDEC Corporation • 1175 Elko Drive • Sunnyvale, CA 94089 • 800-262-IDEC (4332) • Fax: 408-745-5258 • www.IDEC.com/usa©2017 IDEC Corporation. All Rights Reserved. EU9Y-DS200-0
1703140803

16