TSM4L residual current operated moulded case circuit breaker is applied for circuit of rated insulating voltage up to 1000V, rated operation voltage up to 400V, rated operation current up to 800A, AC 50/60Hz, for usage of infrequent transfer of the circuit and infrequent starting of the motor as well. The breakers protect the circuit and devices in the circuit against being damaged by means of overload proection, short circuit protection, under voltage protection and residual current proection. The products comply with IEC60947-2.
The product can work normally when phase failure happens to one of phases.
The product can work normally even when the voltage is reduced to 85V.
User can adjust the rated residual operation current IΔn and the maximum tripping duration according to the detailed situation.
Output signal of alarm against residual current is available.