Auxiliary contact (CA): Changeover switch indicates contacts position (open or closed) of the associated device (circuit breaker or switch, differential or not). Fault signalling contact (SD):Changeover switch indicates fault tripping of the associated device (circuit breaker or switch, differential or not).

• Auxiliary changeover switch, 6 A - 250 V~
• Indicates the position of the contacts of the MCB, RCD or isolating switch
• Auxiliaries :
• Mounted on the left-hand side of the devices
• Possible configuration per device: 3 auxiliaries including 1 control auxiliary
• Auxiliaries common to MCBs, RCBOs RCDs and isolating switches
• Allow insertion of the supply busbar
• Signalling auxiliary :
• Auxiliary changeover switch, 6 A - 250 V~
• Indicates the position of the contacts of the MCB, RCD or isolating switch
• Number of modules: : 0.5