This is a MX shunt trip release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers.::Its rated voltage is 220 to 240 VAC 50/60 Hz, or 208 to 277 VAC 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.