This is a MX shunt trip release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers.Its rated voltage is 12 VDC.It is an auxiliary used for emergency off or remote opening applications.This auxiliary opens the circuit breaker when the control voltage Un rises above 70% of its rated voltage Un.It complies with IEC 60947-2 standard.This shunt trip is a UL Listed/CSA Certified circuit breaker accessory.Compact NSX, PowerPact Multistandard and EasyPact CVS can be equipped with either 1 MX or 1 MN auxiliary.