High-Quality OF10KA Series 4P Miniature Circuit Breaker Factory, Manufacturer

The OF10KA Series 4P (Four-Pole) miniature circuit breaker is a full-pole protective device specifically engineered for three-phase, four-wire (3P+N) low-voltage distribution systems. Its core function is to provide synchronized overload and short-circuit protection for all three phase conductors (L1, L2, L3) and the neutral conductor (N), while achieving complete electrical isolation of the circuit. This design is crucial for preventing safety hazards caused by neutral conductor faults, ensuring absolute de-energization during equipment maintenance, and meeting specific electrical code requirements. It is a key component in three-phase, four-wire distribution applications with stringent safety isolation demands.

Product Description

Related Products

OF10KA Series 1P Miniature Circuit Breaker

OF10KA Series 1P Miniature Circuit Breaker

OF10KA Series 3P Miniature Circuit Breaker

OF10KA Series 3P Miniature Circuit Breaker

OF10KA Series 2P Miniature Circuit Breaker

OF10KA Series 2P Miniature Circuit Breaker

Frequently Asked Questions

What does 1P, 2P, and 3P mean in Miniature Circuit Breakers?

The designation "P" stands for Pole. A 1P (Single Pole) circuit breaker protects a single live wire, commonly used in standard 230V single-phase circuits. A 2P (Double Pole) breaker switches both live and neutral lines, offering complete isolation. A 3P (Triple Pole) breaker protects all three phases in a three-phase power supply system, typically used for heavy industrial machinery or commercial distribution panels.

What is the significance of the 10kA breaking capacity rating?

The 10kA (10,000 Amperes) breaking capacity represents the maximum short-circuit current the circuit breaker can safely interrupt without sustaining damage or causing risk to the surrounding infrastructure. This high rating ensures robust safety performance for both industrial applications and high-demand commercial installations.

Where are OF10KA series miniature circuit breakers typically applied?

The OF10KA series MCBs are designed for protecting electrical installations against overloads and short circuits. They are widely utilized in residential distribution boxes, commercial build-outs, and industrial control panels where reliable circuit safety is critical.

How do I choose between a 1P, 2P, and 3P circuit breaker?

Selection depends on the system voltage and load type. Choose 1P for basic single-phase branch circuits (lighting or small appliances). Use 2P for equipment requiring full dual-line disconnection or 240V single-phase loads. Select 3P for high-voltage three-phase motor circuits and primary heavy-duty equipment.

Are OF10KA circuit breakers compliant with international electrical standards?

Yes, OF10KA series miniature circuit breakers are manufactured in accordance with standard IEC/EN international guidelines to guarantee reliable thermal-magnetic protection and electrical insulation properties across various operating environments.

Related Products