This is a XF closing voltage release for drawout Masterpact NW devices. Its rated voltage is 200VDC to 250 VDC or 200VAC to 250 VAC 50/60Hz. It is an auxiliary used for remote closing applications. This auxiliary closes the circuit breaker when the control voltage Un rises above 85% of its rated voltage Un. It complies with IEC 60947-2 standard. Masterpact device can be equipped with 1 MX, 1 XF and 1 MN auxiliaries.