High Performance Molded Case Circuit Breaker Factory Quote

In addition to air circuit breakers, Ceho is also a supplier of high-quality molded case circuit breakers. This critical component ensures the safety and reliability of power distribution systems in residential, commercial and industrial environments, providing protection for circuits where necessary so that problems caused by overload, short circuit or lack of phase do not affect the circuit.

Selection Guide

Contact Ceho if you have any concerns when choosing MCCB and we will provide you with reliable solutions, including one-stop solutions configured with other components in the electrical system. For such products, you can also consider the following selection factors.

Circuit parameters: calculate the full load current of the circuit and consider the ambient temperature and installation method.

Assessment of short-circuit current: fault analysis at installation point, maximum expected short-circuit current needs to be confirmed first, Icu of MCCB you choose must be equal to or greater than this value.

Select rated current: Select rated current In equal to or slightly higher than calculated FLA, taking into account any necessary derating factors.

Select trip characteristics: select the appropriate trip curve and determine if adjustable settings are required, ask our professionals directly if you are unsure.

Consider accessories: Determine required accessories: auxiliary contacts for status indication, shunt release for remote disconnection, undervoltage release for automatic disconnection in case of power failure.

Verification standards and certifications: certification required for the region and application.

How to Reset a Tripped Molded Case Circuit Breaker?

Do not rush to reset immediately, and follow Ceho's advice first.

Trip causes are to be confirmed, overload, short circuit, ground fault will cause tripping, this is to indicate different situations, to targeted treatment.

Disconnect downstream loads or faulty equipment where feasible and visually inspect wiring, connections and equipment for visible signs of damage, burn or overheating.

After the cause and basic conditions are confirmed, the damaged parts shall be maintained. If it is overload, please reduce the load.

After these steps are completed, the official reset is to move the operating handle completely to the "OFF" position, and then, to force the handle to the "ON" position.