This is a MN undervoltage release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers.Its rated voltage is 525 VAC 50 Hz, or 600 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.