This is a MX shunt trip release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers. Its rated voltage is 110 to 130 VAC 50/60 Hz. 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.