Purpose of 2 pole and 4 pole MCB & how to find genuine MCB product

As you already know, Miniature Circuit Breakers are electrical device which been used to protect electrical circuit from unexpected short circuit or overload and 2 pole and 4 pole are different configurations of MCB

Double Pole MCB: It designed with two switching mechanism within a single device. Both poles individually controls the current flow in one phase of a two-phase or single-phase circuit. Coming to the main point, the purpose of 2 pole MCB is to protect circuits where both live and neutral conductors need to be interrupted at the same time. Mostly 2 pole or double pole mcb used in application such as single-phase lighting circuit or two-phase circuits found in residential or commercial installations.

Four Pole MCB: Now coming to 4 pole MCB, it contains four switching mechanisms in one unit. Each pole can independently take control of the current flow in one phase of three phase circuit, along with that extra pole for the neutral conductor. 4 pole is designed to safeguard three-phase circuits, where all three live phases and the neutral conductor need to interrupt simultaneously and mostly this 4 pole MCB used in industries and commercial setups with three-phase power system.

In short brief, the major difference between 2 pole and 4 pole MCB is the number of poles or switching mechanism they had and type of electrical circuits they are designed to product. 2 pole MCB switches are used for single-phase or two-phase circuits but 4 pole MCBs are used for three-phase circuits

Few ways to figure out original MCB switches to avoid buying low quality duplicate product:

• Research about brand before buying MCB switch, like customer reviews etc.
• Get confirmation is the distributor is authorized person or not, if you buying MCB switches from online than you need to check their return policy, mode of payment, secured online payment option, duration time for door step delivery to you location etc.
• On Genuine MCB switches there will be ISI mark on it, which meant it was certified by Indian government. This ISI mark indicate compliance with safety and standards.
• Ask for recommendations from trusted professionals or individuals who have experience with electrical installations. They may be able to guide you towards reliable brands or suppliers.
• Genuine products have professional packaging with clear branding, product information, manufacturer details.
• Ask for recommendations from trusted professionals or individuals who have experience with electrical installations. They may be able to guide you towards reliable brands or suppliers.