Allen-Bradley 1512B, User Manual

Page: 102 / 108

102 Rockwell Automation Publication 1500-UM055I-EN-P - December 2021
Appendix D Integrated Protective Maintenance Grounding Device
Key Interlocking
An optional mechanical key interlock is available to lock the IPMG device in the
CLOSE or OPEN positions. Contact the factory for further details.
Auxiliary Switches
The IPMG device comes standard with either 2-Form C auxiliary contacts or
with an optional 4-Form C auxiliary contact configuration. These auxiliary
contacts indicate the mechanical and electrical position of the IPMG device.
OPEN (ungrounded load connections) or CLOSED (grounded load
connections). These auxiliary switches can be incorporated into the
controller's control circuit. Their electrical ratings are shown
Table 4 on
page 102 .
Figure 99 - 400 A IPMG showing Auxiliary Contact
Table 4 - Auxiliary Switch Specifications
Description Value
Rated voltage (V AC/V DC) 250
Maximum continuous current (A) 10
Contact configuration DPDT
Contacts available (standard) 2-Form C
Contacts available (optional) 4-Form C
Breaking capacity >5000 electrical
operations
(1)
(A)
(1) When time constant is < 40 ms.
110/120V AC 10
220/240V AC 10
125V DC 0.3
250V DC 0.15
UL code L59
Mechanical life (operations) 3,000,000