Molded Case Circuit Breakers (MCCB) is an electrical protection device to protect electrical circuits from damage by overcurrent. Prevents overload, short circuit and switching of circuits.

Molded Case Circuit Breakers are designed for higher current ratings and can provide overcurrent and short circuit protection.They are used to protect low-voltage electrical circuits and equipment .They are named “molded case” because their outer housing is typically made from a molded insulating material.

JFM3 Series molded case circuit breaker is commonly used to protect low-voltage electrical circuits and equipment. The rated insulating voltage is 750V, suitable for AC 50/60Hz,rated working voltage 690V or below, rated working current is 25A to 1600A of circuit and used in distributing electric energy, JFM3 Series MCCB with rated frame current 400A or below , can be used in mouse cage motor’s non-frequent start, breaking during working, protecting motor from overload, short circuit & under voltage , the product conforms to IEC60947-2 standard.