HS1C-P Interlock Plug Unit with Door Lock
Interlock plugs with door lock mechanism for high level safety management.

• Installing the actuator on the guard door and the interlock
switch on the machine, the guard door can be auto-lockedmechanically.
• Removing the interlock plug maintains the interrupted statusof load circuit and control circuit.
• Solenoid type and non-solenoid type available• Solenoid type has a lock mechanism. Lock mechanism pre­vents removal of interlock plug during machine operation,
and allows for removal after the machine has stopped, withsole­noid energization signal.
• Flexible installation: The actuator can be inserted into two
direction.
• Rugged die-cast aluminum housing• UL listed, c-UL listed.

Interlock Plug Unit

Specifications

Solenoid

Main Circuit

UL508 (UL listed)
CSA C22.2, No. 14 (c-UL listed)
UL498
CSA C22.2 No. 182.1

Auxiliary Circuit

UL508 (UL listed)
CSA C22.2, No. 14 (c-UL listed)

Part No.

With solenoid (24V DC)

HS1C-P44Z-➁

Without solenoid

HS1C-P04Z-➁

ApplicableStandards• Specify an indicator color code in place of ➁ in the Part No.
G: green, R: red• Key wrench for TORX screws (HS9Z-T1) is supplied.
• Actuator is not supplied and must be ordered separately.

ApplicableStandards for
Use
Operating Temperature

Actuators
Description

EN 1088–20 to +50°C (no freezing)

Part No.

Relative Humidity

45 to 85% (no condensation)

Straight Actuator

HS9Z-A1

Storage Temperature–40 to +80°C (no freezing)

Right-angle Actuator

HS9Z-A2

Pollution Degree3Angle Adjustable Actuator (for hinged doors)

HS9Z-A3

Insulation Resistance

100 MΩ minimum (500V DC megger)

Key wrench for TORX screws

HA9Z-T1

Contact Resistance

100 mΩ maximum (initial value)
Between live and dead metal parts:
2000V, 1 minuteBetween terminals of the same poles:
1000V, 1 minuteRatings

Dielectric Strength

Circuit

Model
Main
Circuit

MonitorCircuit

HS1C-P44Z

HS1C-P04Z

Shock Resistance

Damage limits: 1000 m/s2

Vibration ResistanceOperating extremes:
10 to 55 Hz, amplitude 0.5 mm minimum
Damage limits: 30 Hz, amplitude 1.5 mm
minimum

3A

Operating Frequency

900 operations per hour (actuator, plug)

250V AC

Mechanical Life

30,000 operations minimum (actuator, plug)

Actuator Retention Force

1500N minimumInterlock Plug Strength

Rotational strength when locked: 5 N·m

Mounting Screw

M5 × 4Weight (approx.)720g (HS1C-P44Z-➁)

Rated Insulation Voltage (Ui)250V (100% duty cycle)

Rated Thermal Current (Ith)10A

Rated Insulation Voltage (Ui)250V

Rated Thermal Current (Ith)Rated Operating Voltage (Ue)Rated Operating Current (Ie)

0.1A
250V AC/
30V DC(resistive load)

3A(250V AC/
30V DC)(resistive load)

Solenoid Unit
Rated Voltage

24V DC

Rated Current

260 mA

Coil Resistance95Ω (at 20°C)
Rated voltage × 90% maximum (at 20°C)

Pickup Voltage
Dropout Voltage
Maximum Continuous
Applicable Voltage
Maximum Continuous
Applicable TimePower Consumption

Rated voltage × 10% minimum (at 20°C)
Rated voltage × 110%
ContinuousPart No. Development
HS1C-P44Z-R
Solenoid
4: With
0: Without
Indicator Rated Voltage
4: 24V DC

PL2 Indicator Color
G: Green, R: Red
Housing Color
Z: Beige only

6.3W

Indicator
Rated Voltage

24V DC

Rated Current

10 mA

Light Source

LED

Lens Color

G (green), R (red)• The lens cannot be replaced.

1HS1C-P Interlock Plug Unit with Door Lock
Dimensions
109
76

106

59
44

Conduit
Port
G1/2

74
47

42

2

26

ø5

75
4

31.2

45
49.5

R2
.7

68.8
2

125

23.5

.4

4

36.5
10

ø5.

Slot Plug(Note)

47

42

4-M5 Screws

40
4

54.3

23.5

26

35

1.5

7.5
22
40

9

6.5 ±1 *8.5 ±1 ** Actuator center position

5.5

Mounting Hole Layout

Note: Plug the unused actuator entry slot using the slot plug supplied with the interlock switch.
• Use four mounting screws to mount the interlock switch according to the mounting hole layout.

Actuator Dimensions

Actuator
Actuator Cover Mounting
(red)
Holes

R3

.2

Actuator Cover(red) (Note)

44
58
72
.2

20

R3

2
Door Hinge

Angle Adjustment Screw(M3 hexagon socket head screw)30

2-M6 Screws
Actuator
Mounting
Holes

2

°

90

33 max.
12
(21)
1

2
4.1

4.1

5

2

18

Stopper Film
(Note)

58

41.5
10.5
1

7.4

29.2

22

2-M6
Screws

29.2
43

20
11

49.3

Angle-adjustable Actuator HS9Z-A3

20°

7.4

18.3
1

22

.2

40
22

22

Actuator
Mounting
Holes

R3

29.2
43

9
2-M6
ScrewsRight-angle Actuator HS9Z-A2

40

Straight Actuator HS9Z-A1

Note: The actuator cover and actuator stop films are supplied with the actuator and used when adjusting the actuator position.
Remove the actuator cover and actuator stop film after the actuator position is determined.

2

HS1C-P Interlock Plug Unit with Door Lock
Circuit Diagrams and Operating Characteristics
With SolenoidInterlock
Switch Status

Status 1• Door closed• Interlock plug isinstalled• Solenoid deenergized

Status 2

Status 3• Door closed• Interlock plug isinstalled• Solenoid energized• Door closed• Interlock plug isremoved• Solenoid energized

Status 4• Door closed• Interlock plug isremoved• Solenoid deenergized

Status 5• Door open
• Interlock plug isremoved• Solenoid deenergized

1

1

6

Microswitch turns on when
the solenoid is energized.

7

7

5
6

Microswitch turns on when
the solenoid is energized.

7

Interlock Plug

5
6

7

4
5
6

Microswitch maintaines ON
status when the plug isremoved.

78

8Main Circuit

3-4: Closed

3-4: Closed

3-4: Open

3-4: Open

3-4: OpenMonitor Circuit
SolenoidPower

1-2: Open

1-2: Closed

1-2: Closed

1-2: Closed

1-2: Closed

5-6: Power OFF

5-6: Power ON

5-6: Power ON

5-6: Power OFF

5-6: Power OFF• Door locked• Interlock plug isretained (cannot turn)• Machine can operate• Door locked• Interlock plug can beremoved by turning• Machine can operate• Door can be opened• Interlock plug isremoved• Machine cannot
oper­ate• Door can be opened• Interlock plug isremoved• Machine cannot
oper­ate• Machine cannot
oper­ate

Remarks

8

MonitorCircuit

MonitorCircuitMicroswitch maintaines ON
status when the plug isremoved.

Interlock Plug

Main
Circuit4

3

Main
Circuit4

Main
Circuit

MonitorCircuit

MonitorCircuit5

Interlock Plug

3

2

Solenoid
Power

6

4

Interlock Plug

3

2

Solenoid
Power

5

3

2

Main
Circuit

4

1

Solenoid
PowerInterlock Plug

Circuit
Diagram2

Solenoid
Power

3

1

Main
Circuit2

SolenoidPower

1

MonitorCircuit

Door

8

8

Without Solenoid
Status 1
Interlock Switch • Door closed
Status• Interlock plug isinstalled

Status 2

Status 3• Door closed• Interlock plug isremoved• Door open
• Interlock plug isremoved

1 11

1 11

1 11

2 22

2 22

2 22

3 33

3 33

3 33

4 44

4 44

4 44

InterlockInterlock
Plug
Plug5 55
Interlock
Plug

5 55
InterlockInterlock
Plug
Plug
Interlock
Plug

InterlockInterlock
Plug
Plug5 55
Interlock
Plug

6 66

6 66

6 66

Circuit
Diagram

MonitorMonitorCircuit
MonitorCircuitCircuit
Main
Main
Circuit
Main
CircuitCircuit

MonitorMonitorCircuit
MonitorCircuitCircuit
Main
Main
Circuit
Main
CircuitCircuit

Main
Main
Circuit
Main
CircuitCircuit

MonitorMonitorCircuit
MonitorCircuitCircuit

Door

7 77

7 77

7 77

8 88

8 88

8 88

Main Circuit

3-4: Closed

3-4: Open

3-4: OpenMonitor Circuit

1-2: Open

1-2: Open

1-2: Closed• Door locked• Interlock plug can beturned to remove• Machine can operate• Door can be opened• Interlock plug isremoved• Machine cannot
oper­ate• Interlock plug isremoved• Machine cannot
oper­ate

Remarks3

HS1C-P Interlock Plug Unit with Door Lock
Safety Precautions• Do not install the interlock plug unit with door lock in theplace subject to oil or water. Electric shocks or fire hazard
may be caused if the interlock plug is operated when theplug part is contaminated with oil or water.
• Interlock plug units with door lock are used to ensure thesafety of operators who carry the plugs. Provide only one
plug to a guard. Otherwise the hostage control function is
lost, endangering the operators. Ensure complete safety
manage­ment so that the function is maintained.

• In order to avoid electric shocks or fire, turn power off before installation, removal, wire connection, maintenance, orinspection of the interlock plug unit.
• Do not disassemble or modify the interlock plug unit withdoor lock Also do not disable the function of interlock plugunit intentionally. Otherwise a malfunction or an accident
may occur.
• Do not install the actuator in a location where a human bodymay come into contact. Otherwise injury may occur.

Instructions• The plug of HS1P interlock plug units resemble the HS2P
plug, however, these plugs are not interchangeable. Do not
use the plugs of other types, otherwise the interlock plug
units will be damaged. The plugs can be distinguished withthe han­dle color.

HS1P: black (sane as HS1C-P)
HS2P: aluminum color• Regardless of door types, do not use the interlock plug unit
as a door stop. Install a mechanical door stop at the end of
the door to protect the interlock plug unit against excessive
force. If excessive force is applied to the plug, especially tothe direc­tion of removing the plug, solenoid operation failure
may occur even though the solenoid is energized, resulting in
unlocking failure.
• Do not apply excessive shock to the interlock plug unit when
opening or closing the door. A shock to the interlock plugunit exceeding 1,000 m/s2 may cause damage to the interlock plug unit.
• Regardless of door types, do not use the interlock plug unit
as a door lock. Install a separate lock using a latch or othermea­sures.
• The solenoid has polarity. Make sure of the correct polarity
when wiring. Do not apply overvoltage, otherwise the solenoid will be burnt.
• When wiring, unscrew the cover only. Unnecessary loosening of other screws may cause a malfunction of the interlock
plug unit.
Cover• The cover uses special screws which cannot be removed ortightened by general drivers. Use the special wrench supplied with the interlock plug unit.
• While connecting to the conduit port, prevent foreign objects from entering the interlock plug unit, such as dust andliquids.
• If the operating atmosphere is contaminated, use a protective cover to prevent the entry of foreign objects into theinterlock plug unit through the actuator entry slots.
• Entry of a considerable amount of foreign objects into theinterlock plug unit may affect the mechanism of the interlock
plug unit and cause a malfunction.
• Actuator retention force is 1500N (static load). When larger
force is expected, add a system using interlock switch
without lock (ex. HS1B) and sensor in order to detect door
opening and to stop the machine.
• Plug the unused actuator entry slot using the slot plug sup­plied with the interlock plug unit.
• Do not store the interlock plug unit in a dusty, humid, or4organic-gas atmosphere.
• Make sure that the interlock plug unit is not energized whenremoving or installing the plug (after operating the emergency stop button shown in the circuit example shown below).
Do not start or stop the machine by plug removal/installation,oth­erwise the interlock plug unit may fail.
+Interlock Plug
Circuit Example

Start

R

R

Stop
Emergency Stop Switch
Interlock Plug
R

L

Load

–

Note 1: When using the main circuit on AC, connect emergency
stop switch to Line, and interlock plug unit to Neutral.
Note 2: When using the main circuit on DC, connect to the + linewith emergency stop switch first followed by the interlock
plug unit.

Manual Unlocking
The HS1C-P allows manual unlocking of the actuator to pre­check proper entry of the actuator into the slot as well as for
emergency use such as a power failure.
• Remove the screw located on the front of the interlock plugunit using the special wrench supplied with the interlock plugunit. Insert a small screwdriver into the screw hole and push
the lever inside as shown below until the key is unlocked.
• Turn and remove the plug.
• After unlocking, ensure to install the screw.
Interlock Plug
Unit

Screwdriver
Plug

HS1C-P Interlock Plug Unit with Door Lock
Instructions
Minimum Radius of Hinged Door

Applicable Crimping Terminal• When the door hinge is on the extension line of the interlock plug unit
surface:

Ground Terminal: E

3.6 min.

3.5 max.

ø3.6 min.

3.8 max.

3.5 min.

7.6 max.

HS9Z-A2 Actuator

Terminal Nos. 7, 8

6.9 max.

• When using the interlock plug unit for a hinged door, refer to theminimum radius of doors shown below. For the doors with small
minimum radius, use angle adjustable actuators (HS9Z-A3).
Note: Because deviation or dislocation of hinged door may occur
in actual applications, make sure of the correct operation
before installation.

ø4.1 min.

• Use an insulation tube on the crimping terminal
adiu
mR m
imu
Min 230 m

Insulation
Tube

s

s
adiu
mR
m
imu
Min 130 m

Wire

Applicable
Crimping
Terminal

Approx.
4 mm

Door Hinge

Terminal No. 1 to 6

• When the door hinge is on the extension line of the actuator mounting surface:HS9Z-A2 Actuator• Direct wiring using either solid or stranded wires.
• When using stranded wires, make sure that loose wires do notcause short circuit. Also, do not solder the terminal to prevent
loose wires.
Compatible
0.75 mm2
1.0 mm2
1.5 mm2sadiu
mR
imu 0 mm
40

s

adiu
mR m
imu
Min 240 m

Min

When using Ferrules

Door Hinge

AWG
18
17
16

Part No.
S3TL-H075-14WW
S3TL-H10-14WY
S3TL-H15-14WR• Recommendation tools (sold separately)Name

HS9Z-A3 Actuator

Crimping tool
• When the door hinge is on the extension line of the interlock plug unit
HS9Z-A3 Actuatorsurface:

Part No.
S3TL-CR06D

Note
Overseas limited sale

Applicable Wire Size

M

M

• Terminal Nos. 1, 2, 5, 6, 7, 8: 0.5 to 0.75 mm2• Terminal Nos. 3, 4, E:
1.0 to 1.25 mm2

in

in

im
u
50 m R
m ad
m iu

s

im
u
80 m
m Rad
m iu

Installing the Interlock Plug Units

• When the door hinge is on the extension line of the actuator mounting surface:HS9Z-A3 Actuator

Mount the interlock plug unit on a fixed machine or guard,
and mount the actuator on the hinged door. Do not mountboth safety plug unit and actuator on the hinged doors,
otherwise malfunction will occur.
Aplication on Sliding Doors

M

M

in

in

im
u
50 m R
m ad
m iu

s

im
u
80 m
m Rad
m iu

Door
s

Actuator Angle Adjustment• Using the angle adjustment screw, the actuator angle can be
adjusted (refer to the dimensional drawing). Adjustable angle: 0
to 20°• The larger the adjusted angle of the actuator, the smaller the applicable radius of the door opening.
• After installing the actuator, open the door. Then adjust theactua­tor so that its edge can be inserted properly into the actuator entry slot of the interlock switch.
• Recommended tightening torque of angle adjustment screw:
0.8 N·m• After adjusting the actuator angle, apply Loctite to the adjustment screw so that the screw will not loosen.

HS1C-PInterlock Plug Unit

HS9Z-A1
Actuator
Latch
Door Stop

Application on Hinged Doors
Door
Latch
HS1C-PInterlock Plug Unit

HS9Z-A2 Actuator

HS9Z-A1
Actuator

5

HS1C-P Interlock Plug Unit with Door Lock
Instructions
Applicable Cable Glands

Cable Lead-in Length and Wiring Examples

9 mm max.

Refer to the instruction sheet from the URL below forrecommended cable glands.
https://apac.idec.com/idec-apac/en/SGD/c/HS1C_P_Series

Recommended Tightening Torque of Mounting
Screws• Interlock switch: 4.5 to 5.5 N·m (four M5 screws)• Actuator (HS9Z-A1/A2/A3): 4.5 to 5.5 N·m (two M6screws)• Mounting bolts must be provided by users.
• The above recommended tightening torques of themount­ing screws are the values confirmed with hex
socket head bolts. When other screws are used andtightened to a smaller torque, make sure that thescrews do not come loose after mounting.

Cable
Length
L1 (mm)Conduit Port

➀

➁

1

30±2

45±2

2

30±2

50±2

3

25±2

55±2

4

25±2

60±2

5

30±2

65±2

6

30±2

70±2

7

65±2

35±2

8

65±2

110±2

E
Wire Stripping Length
L2 (mm)

85±2

Gland

Interlock Switch

L1

30 mm
max.

G1/2

Terminal
No.

45±2
7±1

Note: Wire the interlock switches according
to the following examples.
When using Conduit Port ➀When using Conduit Port ➁Note: When wiring the ground (E) terminal, connect in thesolid line direction only. Do not connect in thedotted line direction.

EP5558A HS1C-P August 2023

6

L2

• Use IP67 cable gland.

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