August 14, 2022


Electricity is one of the topmost boons of the ultramodern age. The world is largely reliant on electricity for colorful purposes.

Still, electricity can prove to be a hazard if not used precisely. Thus, to minimize electrical accidents like fires, electrocutions, and appliance damages, it’s important to use proper defensive measures. Homes across the globe constantly use MCBs as an electrical defensive device that works effectively against appliance lassitude and short circuits.


MCBs are effective against load currents, as well as short circuits. Though they give some situations of protection to humans, we also should keep in mind that MCBs aren’t generally designed for guarding humans or faves against electrocutions. To help accidents like electrocutions and fires at homes, it’s important to install other applicable defensive biases like RCDs (Residual Current Bias) and RCBOs (Residual Current Breakers with Load protection).

How does the MCB work?

 The inflow of high situations of current through the electrical circuit can be potentially dangerous for connected appliances and can burn them out or beget endless damage to the appliances. To help similar accidents, MCBs are installed across the circuit. The MCB swell acts as an automatic switch that’s used for the protection of electrical appliances against electrical overloads during anomalies like electrical overloads, surges, or showers.

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MCBs are equipped with a bimetallic strip that’s sensitive to heat. However, it warms up the bimetallic circuit in the MCB which bends and deflects from its original state, If there are high quantities of current flowing through the circuit. This deviation causes the MCB to “spark” and release a mechanical latch. This latch disconnects the circuit and disrupts the electrical inflow from reaching the connected device. The MCB can also be manually reset to close the circuit and renew the inflow of electricity through it.

In the case of a short circuit, there’s an abrupt rise in the inflow of electricity through the circuit. This unforeseen rise causes the MCB to trip, displacing the electromechanical plunger and stopping the current inflow.

Vensor Electricals Private Limited offers a wide collection of electrical appliances including the MCBs. If you want to know more about MCBs, we are here to guide you and recommend the best product for you.