PORTEX-UNIGUARD precision overload circuit breaker is connected in series with the load and protects against overcurrent caused by any fault conditions in the circuit or equipment, overload, misuse, voltage fluctuation etc., by tripping and breaking supply when amps. load increases beyond maximum specified limit. The device has a reliable thermal tripping system based on well proven bi-metallic actuation, coupled with a heater system. In the event of an overload the normally closed contacts open with a "snap action" to interrupt the current.
