What type of circuit breaker is used for sensitive electronic equipment?

The Type B circuit breaker is specifically designed to protect sensitive electronic equipment. This type of breaker responds to overload conditions with a low trip threshold, which is suitable for devices that may be at risk of damage from even minor overloads. Sensitive electronic equipment often requires a higher level of protection against transient inrush currents, which can occur during power-on cycling or during brief surges in power demand.

Type B circuit breakers typically trip at currents up to 3-5 times the rated current, making them ideal for applications involving lighting and general-purpose circuits that include sensitive electronics. This ensures that equipment such as computers, audio equipment, and other electronics can operate safely without the risk of nuisance tripping or damage due to overloads.

Other types of circuit breakers, like Type A, C, and D, are designed for different applications. Type A breakers are for very sensitive circuits, such as those found in certain medical devices, but may not provide the broad protection needed for general sensitive electronics. Type C breakers are suitable for equipment that tolerates higher start-up currents, such as motors, and Type D breakers are used for heavy loads that can include high inrush currents, like transformers. Therefore, Type B circuit breakers strike the right balance for protecting sensitive electronics