Miniature Circuit Breaker or MCB is an automated electrical switch. It is mainly intended to safeguard electrical appliances and people from electrical flaws and shocks.

In typical conditions of the low-power electric system, an assessed amount of current runs through the system. While any fault takes place within the system, the current goes beyond the assessed limit. This enhanced current flow can lead to lasting damage to the electrical appliances. In order to protect these appliances and people from any damage, this highly assessed current has to be interrupted as quickly as possible.

In typical conditions of the low-power electric system, an assessed amount of current runs through the system. While any fault takes place within the system, the current goes beyond the assessed limit. This enhanced current flow can lead to lasting damage to the electrical appliances. In order to protect these appliances and people from any damage, this highly assessed current has to be interrupted as quickly as possible.

Top Benefits of MCB over fuse

1. MCB can be reused. Thus, it has fewer replacement and maintenance costs. On the other hand, a fuse has to be changed whenever damaged.

2. Compared to fuse, MCB is more sensitive to current. MCB can notice any oddity within the current flow and automatically turns off the electric circuit.

3. It is more convenient and safe to handle MCB than a fuse.

4. The damaged or defective part of the electric circuit can be effortlessly detected in MCB. Damaged circuit trips to the turn-off position. In a fuse, the entire fuse wire has to be checked by opening fuse grip to confirm the damaged part.

MCB Types

You need to be wary of the MCB trip curves types to choose what type to employ for various electrical appliances for the correct electrical network. What is a trip curve? It usually refers to the maximum current that a certain MCB can tolerate. As soon as the idyllic current loading is ruptured, the circuit automatically excises. There are around 6 distinct MCB types, counting A, B, C, D, K, and Z.

1. Type A trips off the circuit while the current goes beyond 2 to 3 times the correct current rating. As Type A is very sensitive to short circuits, it is best for semiconductor appliances.

2. Type B trips off while the current flow is 3 to 5 times the actual flow and discovers a usage for cable protection.

3. Type C is the most suitable MCB for domestic appliances. The current load is medium in the case of type C MCB. This MCB trips off as the current flow is 5 to 10 times more than regular.

4. Type D comes with an excellent resistance since it can tolerate up to 10 to 20 times the current rate. This is the perfect choice for those seeking circuit breakers for appliances having a high starting current load.

5. Type K MCB can tolerate up to 8 to 12 times the initial charge. Hence, it can be utilized for heavy-load appliances.