Key Features

· The RMM1E electronic molded case circuit breaker features three-phase protection function. It has selective coordination with other short-circuit protection devices connected in the same circuit when operating under short-circuit conditions, using circuit breakers of category B.

· Three-stage protection action current and timing selection: Users can adjust the release mechanism according to the load current requirements.

· Self-powered: The electronic release is powered by the circuit breaker itself, with the current signal and the release's power supply coming from the current transformer installed within the circuit breaker.

· Indicates "pre-alarm count": When the actual operating current passing through the circuit breaker reaches or exceeds the pre-alarm trip current Iro, the "pre-alarm" LED indicator on the circuit breaker cover illuminates in yellow.

· Overload indicator included; when the load current exceeds the trip current of the overload long delay, the LED indicator on the circuit breaker cover lights up red.

· High current instantaneous tripping function: When the circuit breaker closes or during operation, upon encountering a short circuit with a high current (≥201A), the circuit breaker is directly tripped by the electromagnetic release mechanism.