Curve B MCB Miniature Circuit Breaker

Working Principle

Overload protection: When the current in the circuit exceeds the rated current value of the MCB and lasts for a certain period of time, the MCB will automatically disconnect the circuit to prevent wires and electrical appliances from being damaged due to overload.

Short circuit protection: In the event of a short circuit, the current will increase dramatically and the MCB will quickly detect and disconnect the circuit to prevent serious accidents such as fire.

Applications

Curve B MCB Miniature Circuit Breaker is suitable for AC 50/60Hz, rated voltage 230/400V, rated current up to 63A, and can be used to protect these circuits from overload and short circuit damage.

It is also suitable for the infrequent operation of the line switching, such as controlling the lighting, socket and other circuits on and off.

Selection and Installation

SELECTION: When selecting a Curve B MCB, it is necessary to determine the appropriate model and specification based on the rated current and rated voltage of the circuit as well as the required protective characteristics.

Installation: The MCB should be installed in accordance with the relevant electrical safety codes to ensure that it is easily accessible and easy to operate. When installing, care should also be taken to ensure that the wiring is correct and tightened reliably to avoid malfunctions caused by poor or loose contact.