Motor protection switch, 3b, Ir=0.3-1.2A, standard 121731

Complete motor starter protector (basic device with electronic trip unit) to IEC60947-4-1, electronic wide range overload protection (4:1), phase failure and asymmetry protection, adjustable trip class, high short-circuit breaking capacity, disconnect function motor circuit breaker. Flexible adjustment of the current range of the motor starter protector via replaceable electronic trip blocks. Expandable with auxiliary switches, voltage release, current limiter, knobs. Devices for all markets, ATEX approved