The Schneider Electric CVS is a high-performance, Moulded Case Circuit Breaker (MCCB) from the Compact NSX range (Note: CVS is part of the older NS/NSX platform, sometimes referred to as the "Compact" series). The model CVS 100F is a 4-Pole (4P) breaker with a frame size of 100A and a rated current (In) of 63A.