Do you know the difference between molded case circuit breakers and regular circuit breakers

To distinguish between molded case circuit breakers and ordinary circuit breakers, let's first learn about molded case circuit breakers. Molded case circuit breakers are also known as device type circuit breakers. All parts are sealed in plastic boxes. Auxiliary contacts, undervoltage releases, and parallel releases are mostly modular. Due to its compact structure, it is basically impossible to overhaul the molded case circuit breaker. Large capacity optional electric switch. The molded case circuit breaker installs the contacts, arc extinguishing chamber, release, and usage mechanism in the plastic casing. Generally, maintenance is not considered. A protective switch suitable for branch circuits. The overcurrent release has thermal magnetic characteristics. There are two types of thermal magnetic molded case circuit breakers, namely universal thermal magnetic molded case circuit breakers. It is a non selective circuit breaker with only two protection modes: overload long delay and short-circuit instantaneous protection. So what is the difference between a molded case circuit breaker and a regular circuit breaker? Now let's explain it to everyone.

1. Meaning difference: Plastic shell circuit breaker is a type of plastic shell motor that can be used to connect and disconnect load circuits, as well as to control infrequent starting. A regular circuit breaker refers to a switching device that can close, carry, and disconnect current under normal circuit conditions, and can close, carry, and disconnect current for a certain period of time under normal circuit conditions.
2. Functional differences: Plastic case circuit breakers are commonly used for power distribution and can also be used for motor maintenance. Under normal circumstances, circuit breakers can be used for infrequent switching of circuits and infrequent starting of motors. The function of a regular circuit breaker is to cut off and connect the load circuit, as well as cut off the faulty circuit, to avoid the expansion of accidents and ensure normal operation. The high-voltage circuit breaker needs to break the 1500V arc with a current of 1500-2000A. These arcs can extend up to 2 meters and continue to extinguish.
3. Differences in usage: Plastic shell circuit breakers are used to distribute electrical energy in distribution networks and serve as overload, short circuit, and undervoltage maintenance for lines and power equipment. The circuit breaker used for maintaining the motor is used in the distribution network for starting and interrupting the operation of squirrel cage motors, as well as for overload, short circuit, and undervoltage maintenance of squirrel cage motors. Undervoltage maintenance also requires the installation of a shunt release. The purpose of a regular circuit breaker is to distribute electrical energy, infrequently start asynchronous motors, and maintain power lines and motors. The combination of fuse switch and overheat relay.