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Interlock Body
Model
Solenoid
Voltage
Actuator
Contacts
Solenoid
Monitor
Contacts
Actuator Engaged and Locked
Actuator Engaged but Not
Locked
Actuator Unlocked and
Removed
SI-GL42D_21-10
24 V
AC/DC
2 NC/1 NO 1 NC
Actuator Contacts
31 32
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
13 14
Actuator Contacts
31 32
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
13 14
Actuator Contacts
31 32
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
13 14
SI-GL42D_30-10
24 V
AC/DC
3 NC 1 NC
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
31 32
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
31 32
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
41 42
E1 E2
+
–
31 32
SI-GL42D_20-20
24 V
AC/DC
2 NC 2 NC
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
31 32
41 42
E1 E2
+
–
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
31 32
41 42
E1 E2
+
–
Actuator Contacts
11 12
21 22
Solenoid Monitor Contacts
31 32
41 42
E1 E2
+
–
SI-GL42D_01-21
24 V
AC/DC
1 NO 2 NC/1 NO
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
13 14
31 32
21 22
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
13 14
31 32
21 22
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
13 14
31 32
21 22
SI-GL42D_10-21
24 V
AC/DC
1 NC 2 NC/1 NO
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
11 12
31 32
21 22
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
11 12
31 32
21 22
Actuator Contacts
Solenoid Monitor Contacts
43 44
E1 E2
+
–
11 12
31 32
21 22
—Signifies which contacts are positive opening safety contacts (per IEC 60947-5-1). This contact is forced open by the
action of removing the actuator from the Interlock.
—Signifies which contact is positively connected to the locking mechanism. This contact cannot close if the actuator is
not present in the interlock.
The model table lists only the interlock body, a required actuator is ordered separately. Emergency release mechanisms are
also ordered separately. For the complete lists of actuators and emergency release mechanisms see Accessories on p.
20.
SI-GL42 Series Locking-Style Safety Interlock Switch
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