High-Quality OFA-M1 Series 125 A Molded Case Circuit Breaker Factory, Manufacturer

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High-Quality OFA-M1 Series 125 A Molded Case Circuit Breaker Factory, Manufacturer

In low-voltage distribution systems, the 125 A current rating is a typical choice for sub-distribution circuits and feeders for large equipment, requiring both sufficient current-carrying capacity and high breaking performance to ensure system safety. The OFA-M1 series OFAM1-125/3300 molded case circuit breaker, with a frame rated current of 125 A, a rated ultimate short-circuit breaking capacity of 35 kA, a service short-circuit breaking capacity of 22 kA, an insulation voltage of 690 V, and an impulse withstand voltage of 6 kV, is specifically designed for medium-capacity distribution circuits in industrial, commercial and infrastructure applications. The product is manufactured in strict accordance with the GB/T 14048.2 standard, providing solid overload and short-circuit protection for various feeder circuits.

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Product Description

Frequently Asked Questions

What is a Molded Case Circuit Breaker (MCCB)?

A Molded Case Circuit Breaker (MCCB) is a type of electrical protection device used to protect electrical circuits from excessive current, which can cause imbalances, overloads, or short circuits.

How does an MCCB differ from a standard MCB?

MCCBs are designed for higher current capacities (typically up to 2500A) and offer adjustable trip settings, making them suitable for industrial and commercial applications, whereas MCBs are generally rated under 100A for residential or low-power use.

What current ratings are available for these circuit breakers?

The series covers a wide range of current ratings, including options from 63A to 630A, satisfying diverse low-voltage power distribution needs.

What main protection functions do these circuit breakers provide?

They provide comprehensive protection against overload conditions, short-circuit faults, and undervoltage situations to secure connected electrical equipment.

Where are Molded Case Circuit Breakers typically installed?

MCCBs are widely installed in main switchboards, distribution panels, motor control centers, and industrial facilities to manage and safeguard electrical systems.