CAM-OPERATED SWITCHB TYPE, BH TYPEINDEX FOR B / BH TYPE CAM-OPERATED SWITCH
ItemPageItem

PageFeatures

A1Handle code

A6Specifications / Breaking Capacity

A2

Standard Specifications

A7 to 11

Contact Arrangementof Standard Switches

A33 to 50

How to Order

A3

Special Specifications

A12 to 24

Accessories

A51 to 52

Notch code

A4 to 5

Mounting Hole Dimensions

A25

Nameplates

A53 to 56

Contact code

A5

Contact Arrangement Diagram

A26 to 28

Technical Information

A57 to 58

ItemPage

Voltmeter / Ammeter Switches A29 to 32

FEATURES■Heavy-duty mechanical durability againsthigh-frequent switching
Since the optimal layout of components and by usingmaterials with high wear resistance for the mechanicalsection, it can be provides accurate operation feeling anddurability against high-frequent switching up to 5 million
times.
SpringRolle
Lever
Notch cam■The terminal arrangement greatly improves
wiring efficiency
No up-screw terminal is adopted. It can be quickly wired
from the back for the alternate terminal arrangement.

A1■Capability both compact body and highbreaking capacity and yet greatly improved
breaking capacity
Larger breaking capacity of the switches generally requires thatthe main body enlargement. However, Fuji's control switches
has achieved downsizing while increasing the breaking capacity.
This breakthrough has been made possible by optimallydesigning the cam shapes
and the angle of the movable
contact parts for obtaining
max. switching speed
mechanically.
This allows you todetermine the setting
values (voltage andcurrent) with allowance.

■High-performance engineering plastics
ensure high quality and high reliability
For the body, polycarbonate resin is used, which has ahigh level of performance among engineering plastics.
The material greatly improves strength and resistanceagainst environment (temperature, humidity, vibrations,etc.), which are particularly important for the applications
related to heavy electric machineries. The contacts andmechanical parts are transparent to facilitate checking
the contacting part.

SWITCH

SPECIFICATIONS (RATINGS, PERFORMANCE)
Specification

Type

Rated insulation voltage (Ui)

B TYPEBH TYPE

600V (250V for rear terminal type and Lamp circuits of indicator lamp type)

Rated current-carrying capacity (lth)20A

Max. wire size

5.5㎜2M4×9

Screw size
Withstand voltage

2,500V AC / 1 min.

Lightning impulse

Between the charging department lume vs ground ±7kV (1.2 / 50µs), Between the charging department mutuality ±4.5kV

Contact resistance

50mΩ or less

Mechanical life

5,000,000 operations or more, Class 1 (100,000 for pull and push contact)

Electrical life

500,000 operations or more, Class 1 (50,000 for pull and push contact)

Shock resistance

500m/s2 or more (6 directions)Vibration resistanceRange of vibration : 10 to 150Hz, Acceleration : 20m/s2, Time : 1 hour (3 directions)Min. power requirements

5V AC 100mA, 5V DC 100mA (operating environment must be good)

Operating temperature–20 to 60°C (Do not freeze)

Storing temperature–40 to 70°C (Do not freeze)

Altitude2,000 m or less

■Breaking capacity [electrical life of 500,000 operations (class 1)]
AC

DC

Rated voltage Rated operating current Rated operating current(V)(resistance load) (A) (inductive load) (A)2 contacts used
2 contacts used
Rated voltage Rated operating current Rated operating current
in series
in series(V)(resistance load) (A) (inductive load) (A) Rated operating current Rated operating current(resistance load) (A)(inductive load) (A)11020152415102020220151048106181544043110

31.54.54――

――

――

220

1.20.821.5

 Inductive load: For AC: Power factor 0.6 to 0.7 (Class: AC11)
For DC: Time constant 40±6 ms (Class: DC12)A2

A SWITCH
B PILOT LAMP & INDICATOR

Contact completes

C CONNECTING DEVICES

Rolling action▲▲

Contact starts

Rolling action

D ELECTRONIC DEVICES▲

Breaking starts

In the contact mechanism, the movable contact makes
contact with the stationary contact at one point and thengradually increases the contact area while rolling on it.
This rolling action minimizes the part exposed to the arcthat is generated at the first contact or breaking, thereby
maintaining much higher contact stability than the former
product.

▲■Rolling action of contact mechanism
improves contact stability

CAM-OPERATED SWITCHB TYPE, BH TYPE
HOW TO ORDER①Type (There’s contact arrangement at diagram)

BH-T2002-LD-B-□54-000①②⑦⑧⑨⑩②Type (There’s no contact arrangement at diagram)

BH-T2-2B2A-LD-B-□54-000
①No.

Item

①

Basic type

③ ④⑤ ⑥ ⑤ ⑥Code⑦⑧Detail

B

Screw side is up / down

BH

Screw side is right / left⑨⑩NoteBH type has some individual codes for the following specifications.
Automatic return type by pulling.
Automatic return type by pulling and pushing.
Manual / Automatic axial return type.
Handle removable type.

② Contact arrangement

Please see page A33 for contact arrangement diagram.

ー③ Notch code

Please see page A4 to 5for mechanical operation method.

ー④ No. of units

１〜No. of units

Max. unit No. varies from notch and type of switches.

⑤ No. of contacts

１〜No. of contacts

1 unit has 2 contacts. (There is only 1 contact in 1 unit in some cases.)⑥ Contact code

Please see page A5 for Contact code.

About representation of contact code, please refer to the following picture.

⑦ Handle code

Please see page A6 for Handle code.

ーMunsell color code
HandleFlange

B

N1.5

N1.5

BG

7.5BG3/3.5

7.5BG4/1.5⑧

Color ofhandle / flange⑨

Quick nameplate No code No attachment
attachment flange
Quick nameplate attachment flangeJ⑩ Nameplate

54-Standard (for screw fastening)

58-For quick attachment flangeーBlack (N1.5) only
Please see page A52 quick nameplate attachment flange.
Please see page A53 to 56 for Nameplate.
Please select a nameplate No., when the nameplate No. is
not specified, plain nameplate is attached.
 For the type that corresponding to the all kinds of standard, please contact us separately.

About No. of contacts / Contact code
B type … Screw side is up / down

Contact code shows contact ON(close) notch position(s),And terminal 1-2, 3-4, … from the left of codes.
Ex.）T2-2B2A

Terminal No.

⑦⑧

⑤

⑥

③

④

①

Notch position code

A3

The dot shows contact ON (close).

②BAT

2nd unit

BH type … Screw side is right / left
1st unit
Front(Panel mounting side)