... for infrequent start of motor and provide overload, short circuit and under-voltage protection for the motor. This breaker ... KA)400/690V Number ofpoles Flashoverdistance CM1-63L 63 (6), 10, 16,20, 25, 32,40, 50, 63 400 ... .5/4 3 ≤50 CM1-100M 100 50/10 25/5 3,4 CM1-100H 100 85/20 ... 42.5/10 3 CM1-225L 225 100, 125,160, 180,200 ... /4 3,4 ≤50 CM1-225M 225 50/10 25/5 3 CM1-225H 225 85/20 42 ...