Accessories
4.4 Plug-in and draw-out technology
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
283
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 295).
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 three padlocks
●
Shackle diameter 6 mm to 8 mm / 0.25" to 0.31"
