It is applicable to over-current protection of power line facilities and electrical equipment with AC 50Hz, rated voltage up to 400V and rated working current up to 100A, or infrequent on-off operation. 

In case of special requirements, the signal control tripping function can be added to perform remote control breaking or automatic signal control breaking for the line. 

At present, the signal control tripping function is widely used in IC card prepayment meters to control the circuit on and off. 

This product complies with GB/T 14048.2.