Building Management

All you need to Know about an ACB and MCB

In the era of technology and automation, there are so many instances where unanticipated mishaps can occur. These calamities can lead to significant damage to physical infrastructure such as offices, homes, schools, industries, etc. An eminent example of such a mishap is during a short-circuit or any other similar type of electrical contingency (electric cable faults) i.e when high-fault current passes through the equipment along with the power network grid itself. This high current can potentially damage the equipment connected in the respective power management system and the networks enduringly. Removing these faulty currents from the grid as fast as possible is an effective measure to safeguard devices which could be impacted. Even when this is done, the system has to be restored to its optimal functionality swiftly in order to supply a dependable quality of power.

There are a few unique types of devices that can promote building management safety and control under unfavourable current-carrying conditions. These devices are commonly referred to as circuit breakers: a unique appliance which carries out the function of switching operations during current-carrying conditions. These types of circuit power breaker can be elaborated as below.

ACB (Air Circuit Breaker)

 This type of circuit breaker, which operates in the air at atmospheric pressure, is coined as an Air Circuit Breaker. Over the past few years, these breakers have entirely replaced oil circuit breakers. Their process of arc quenching control is in fact quite unique in comparison to the functioning of oil circuit-breakers. In most cases, they are generally implemented for low-voltage interruption.

Miniature Circuit Breaker

 A Miniature Circuit Breaker is one of the most popular devices used to protect electrical appliances from potential damages in the case of power distribution. Using an MCB is generally reliable and safe, as opposed to a fuse. Swift restoration of electrical supply is a possibility opposite to a fuse – a one-time device that eventually needs replacement after performing its function. One of the primary features of an MCB which enhances its capabilities and applicability is the fact that their functionality can be restored with the slightest effort. To do this, one just needs to push the knob of the miniature circuit breakers back to the ‘on’ position. Compare this to the performance of a fuse – after carrying out its function, it needs to be replaced completely.

Related Article : What are Miniature Circuit Breakers (MCBs)?


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