When the breaker is tripping, it is almost never a good idea to replace it with a larger one. Here's why: It increases the risk of fire. If the breaker is tripping because it's overloaded (say, drawing 25 amps on a 20-amp breaker), increasing the size may cause the wire or the receptacle to overheat.

A moulded case circuit breaker (MCCB) is a type of electrical protection device that is used to protect the electrical circuit from excessive current, which can cause overload or short circuit.

The most common reason for a breaker to trip is an overloaded circuit. Usually, having too many appliances running on the same circuit is what causes the problem. These appliances are generally high power devices, such as air conditioners, hairdryers, or heaters.