This is a MN undervoltage release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers.::Its rated voltage is 380 to 415 VAC 50/60 Hz, or 440 to 480 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 drops to a value below 35% of its rated voltage Un.::It complies with IEC 60947-2 standard.::This undervoltage release 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.