Accessories, locking ON/OFF buttons, the circuit-breaker"s ON/OFF buttons can be locked together by using the interlock. It is also possible to lock only the ON or the OFF button by using a padlock. This means that it will no longer be possible to actuate the circuit-breaker locally. The optional remote switching mechanism that uses an ON/OFF coil will not be interlocked, P = Insulated material, material plastic, for use with IZMX16…, INX16…, IZMX40…, INX40…,ON-OFF, plastic