MOLDED CASE CIRCUIT BREAKER 4P

A molded case circuit breaker (MCCB) is a type of circuit breaker commonly used in electrical distribution systems to protect circuits and equipment from overcurrents and electrical faults. Here is a description of its features and functioning:

1. Construction: MCCBs are typically housed in a robust molded case made of insulating materials such as plastic or thermoset. The case provides physical protection and insulation for the internal components of the circuit breaker.
2. Trip Mechanism: MCCBs employ a trip mechanism that consists of a thermal element and a magnetic element. The thermal element responds to overcurrents that persist over a specific duration, such as an overload condition. The magnetic element is designed to rapidly trip the breaker in response to high-level short-circuit currents.
3. Current Rating: MCCBs are available in various current ratings to suit different applications. The rating represents the maximum current that the breaker can safely carry continuously without tripping. Common current ratings range from a few amps to several thousand amps.