Molded Case Circuit Breaker (MCCB) automatically cut off current when the current exceeds the trip setting. Plastic housing refers to the housing of a device using a plastic insulator to isolate between conductors and the grounded metal part. Molded case circuit breakers usually contain thermal magnetic trip units, while large moulded case circuit breakers are equipped with solid state trip sensors. Enriched with vast industrial experience, we are one of the leading Molded Case Circuit Breaker (MCCB) Distributors in Kolkata. These are sourced from the renowned brands like L&T, Siemens etc., who design and develop these as per international industrial standards. Our offered devices are acknowledged for their robustness and reliability.

Molded case circuit breakers are mostly operated manually and electrically operated with large capacity. Due to the application of electronic over- current trippers, molded case circuit breakers can also be classified into Class A and Class B. Class B has good three-stage protection characteristics. However, due to the price, the market share of Class A products using thermal- magnetic trippers is higher. Molded case circuit breaker installs contacts, arc extinguishing chambers, trippers and operating mechanism in a plastic case. Generally, maintenance is not considered. Molded Case Circuit Breaker (MCCB) Suppliers in Kolkata It is suitable for protective switches used as bypass. Over- current trippers are of thermal magnetic type and electronic type.