China OFDP 2P Miniature Circuit Breaker Factories, Manufacturer

1 / 3

China OFDP 2P Miniature Circuit Breaker Factories, Manufacturer

The OFDP 2P is a 2-pole miniature circuit breaker designed and manufactured in accordance with IEC60898-1. It is suitable for distribution circuits with AC 50/60Hz and a rated voltage up to 415V. The product is mainly used for overload and short-circuit protection in end-user distribution systems, and can also perform infrequent on-off switching operations.

Send Inquiry

Product Description

Frequently Asked Questions

What is a Miniature Circuit Breaker (MCB)?

A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch designed to protect low-voltage electrical circuits from damage caused by excess current, overloads, or short circuits.

What is the difference between 1P, 2P, 3P, and 4P circuit breakers?

The number of poles indicates the number of circuits the breaker can protect simultaneously. 1P protects a single phase, 2P protects phase and neutral or two phases, 3P is used for three-phase systems, and 4P protects three phases plus the neutral line.

How do I select the right MCB rating for my equipment?

Selection depends on the total load current, cable size, and the nature of the application. The continuous operating current of the circuit should not exceed the current rating of the MCB.

Can these circuit breakers be used in both commercial and residential applications?

Yes, standard miniature circuit breakers are widely suitable for residential distribution panels, commercial buildings, and industrial electrical systems for standard overload protection.

What causes a Miniature Circuit Breaker to trip?

An MCB usually trips due to circuit overload (too many devices drawing power), short circuits (hot and neutral wires touching), or ground faults occurring within the system.