Rated operating voltage Un 208/240VAC 50/60Hz MX release trips the circuit breaker when the supply output rises above 70% of the rated operating voltage Maximum response time 22.8ms Power consumption 4VA / 208/240VAC 50/60Hz GoPact MCCB 200 and GoPact MCCB 250, Certified to IEC 60947-1 and IEC 60947-2 The GoPact MCCB series benefits from Schneider Electric quality assurance.