SPN MCB

At Samtulas Powetech Company, We specialize in the manufacturing and supply of a high quality range of electrical products, including MCBs, MCCBs and digital meters, relay cards and more.

Our products have garnered significant demand across industrial, residential and commercial sectors due to attributes such as prolonged durability and fire resistance. We design transparent business policies that will benefit our valued customers. Our expert staff are diligent to render good after sales services so that our customers remain satisfied. They are determined to complete each delivery order within the scheduled time.

Product introduction

A Single Pole plus Neutral (SPN) (MCB) Miniature Circuit Breaker typically refers to a circuit protection device designed for single phase circuits where the neutral wire is interrupted when the circuit breaker trips. The Single Pole + Neutral configuration of this MCB allows each pole to independently detect and interrupt the circuit. This MCB effectively prevents any potential mishaps caused by overload, current overflow or short circuit. The product is equipped with a C feature that specifically safeguards against short circuits.

At Samtulas Powertech, we offer single pole plus neutral MCBs ranging from 6A to 63A.

The components inside an SPN MCB can vary by manufacturer and model, but generally, it includes the following

• Contact System : This is the mechanism that opens and closes the electrical contacts. It is responsible for interrupting the current flow when the MCB trips.
• Magnetic Trip Unit : MCBs often have a thermal component that responds to surplus current conditions and a magnetic component that responds to short circuit currents. The bimetallic strip inside the trip unit bends due to heat, tripping the breaker.
• Arc Extinguishing System : MCBs usually have mechanisms to extinguish the electrical arc that forms when the contacts open.
• Operating Mechanism : The part that allows manual operation of the MCB, usually for turning it on or off.
• Adjustment Mechanism : Some MCBs may have settings for adjusting the tripping characteristics within a specified range.
• Connection Terminals : Points for connecting the incoming and outgoing electrical wires.
• Enclosure : The outer protective housing of the MCB.
• Labeling : Information such as the name of the manufacturer, model, electrical ratings and relevant standards.

Benefits

• They provide protection from abnormal current and short circuits.
• They are easy to install and maintain.
• They are compact and space saving.
• These are available in diverse sizes.
• They are available with a series of features.

Application areas

• These MCBs provide protection to residential and commercial circuits.
• These MCBs protect industrial and electrical equipment.
• The SPN MCBs have the quality of protecting motors and generators.
• The protection of lighting circuit becomes easy with use of SPN MCBs.

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