What are the advantages and disadvantages of a MCBs?

Answer 1

Miniature Circuit Breakers (MCBs) offer advantages such as automatic disconnection of faulty circuits, preventing electrical fires and equipment damage, as well as being resettable, which reduces downtime. They also provide precise overload and short-circuit protection. However, disadvantages include the potential for nuisance tripping due to transient surges, and they may not protect against all types of electrical faults, such as earth faults, without additional devices like Residual Current Devices (RCDs). Additionally, MCBs can be more expensive than traditional fuses and may require proper sizing for effective use.