Moulded Case Circuit Breaker Symbol

A molded case circuit breaker (MCCB) is a type of circuit breaker that is enclosed in a molded case. It is a type of switch that is used to protect electrical circuits from overloads and short circuits. MCCBs are used in a wide variety of applications, including commercial, industrial, and residential settings.

MCCBs are typically rated in terms of their interrupting rating, which is the maximum amount of current that the breaker can safely interrupt. MCCBs are also rated in terms of their voltage rating, which is the maximum voltage that the breaker can be used with.

MCCBs are available in a variety of sizes and configurations. They can be single-pole, double-pole, or triple-pole breakers. MCCBs can also be equipped with a variety of features, such as thermal overload protection, magnetic overload protection, and short-circuit protection.

MCCBs are installed in a variety of ways. They can be mounted on a panelboard, in a raceway, or in a subpanel. MCCBs are typically connected to the circuit conductors using lugs or terminal screws.

MCCBs are a reliable and cost-effective way to protect electrical circuits from overloads and short circuits. They are a common sight in a variety of commercial, industrial, and residential settings.

Here is a diagram of a molded case circuit breaker:

MCCB symbol

The symbol for a molded case circuit breaker is a square with a line through the middle. The line represents the trip mechanism of the breaker. The square represents the body of the breaker.


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