It is a MB Vigi add-on module for 4 poles Compact NSX 400/630 and EasyPact CVS 400/630. It provides an earth-leakage protection when installed directly on the device terminals. It directly actuates the trip unit in case of insulation fault. The addition of this Vigi add-on module does not modify Compact NSX 400/630 or EasyPact CVS 400/630 characteristics. It is a MB type module in 4 poles version, self-powered by the input voltage. The operational voltage for the Vigi add-on is from 200VAC to 440VAC 50/60Hz. The sensitivity is adjustable from 300mA to 30A, the time delay is also adjustable. The dimensions of the circuit breaker equipped with this module are 185mm x 355mm x 110mm.

User Manual:

Schneider Electric_ComPact-NSX-630A_LV432456 (1)