Siemens Sentron 3VA Manual page 234

Accessories
4.4 Plug-in and draw-out technology
Position signaling in the plug-in socket
Several position signaling switches (number depends on socket size) can be fitted in the
plug-in socket. Auxiliary switches are capable of signaling "Plug-in unit - MCCB correctly
bolted to plug-in socket" via electrical connections.
For further information, please refer to chapter Position signaling switches (Page 244).
Padlocks for preventing insertion of a molded case circuit breaker
The socket unit can be locked with padlocks to prevent unauthorized insertion of a molded
case circuit breaker during service calls and inspections. Using these locks to prevent
insertion and operation of a molded case circuit breaker helps to protect personnel and the
installation itself. The socket unit of the plug-in socket is equipped with three openings for
padlocks.
Openings for padlocks:
● Up to 3 padlocks
● Shackle diameter 1/4" to 5/16" / 6 mm to 8 mm
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3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01