OEM OFPF Series 4P Miniature Circuit Breaker Factories, Suppliers

1 / 3

OEM OFPF Series 4P Miniature Circuit Breaker Factories, Suppliers

The OFPF Series 4P (Four-Pole) miniature circuit breaker is a high-performance, full-pole protection device specifically designed for three-phase, four-wire distribution systems. Its core function is to achieve synchronized interruption of all three phase conductors (L1, L2, L3) and the neutral conductor (N) through a built-in, integrated mechanical linkage mechanism. This product not only provides precise overload and short-circuit protection for downstream wiring and equipment but also achieves complete electrical isolation of the circuit. It thoroughly eliminates potential safety risks associated with the neutral conductor not being disconnected simultaneously. It is a key component for ensuring the safe operation of commercial, industrial, and residential power distribution applications that have stringent requirements for power supply continuity, operational safety, and system integrity.

Send Inquiry

Product Description

Frequently Asked Questions

Q1: What is the main difference between 1P, 2P, and 3P Miniature Circuit Breakers?

A 1P (Single Pole) circuit breaker controls and protects a single phase circuit. A 2P (Double Pole) protects two live wires or one live and one neutral line, while a 3P (Three Pole) breaker is designed for three-phase electrical systems commonly used in industrial and high-power applications.

Q2: What primary functions do OFPF Series Miniature Circuit Breakers serve?

OFPF Series Miniature Circuit Breakers provide essential protection against overloads and short circuits in electrical lines, safeguarding connected appliances, cables, and equipment from thermal and magnetic damage.

Q3: How do I select the right pole count (1P, 2P, or 3P) for my project?

Select 1P for standard single-phase residential branch circuits (lighting/outlets), 2P for single-phase 230V equipment requiring neutral disconnection or two-phase loads, and 3P for heavy machinery or commercial three-phase distribution systems.

Q4: Are OFPF Series Miniature Circuit Breakers suitable for standard mounting tracks?

Yes, OFPF Series circuit breakers are engineered with standard modular dimensions suitable for mounting on conventional DIN rails in standard distribution boxes and enclosures.

Q5: How does thermal-magnetic tripping work in these circuit breakers?

The thermal mechanism uses a bimetallic strip to trip the circuit under sustained overload conditions, while the magnetic solenoid mechanism acts instantaneously during sudden short-circuit events for rapid emergency shutdown.