DC250V 250A 1P Molded Case Circuit Breaker

The DC250V 250A 1P Molded Case Circuit Breaker in China is a core protection component designed by GREENWATT specifically for low-voltage, high-current DC systems. This DC250V 250A 1P MCCB is suitable for small energy storage battery packs, solar DC busbars, and portable industrial equipment. It can stably carry a rated current of 250A at DC250V and provides precise overload and short-circuit protection.

In DC power systems, the safety and stability of the circuit directly impact the lifespan of expensive equipment such as inverters or lithium iron phosphate battery packs. GREENWATT's DC250V 250A 1P Molded Case Circuit Breaker, with its sophisticated internal construction, solves the challenges of heat dissipation and arc suppression under high current conditions.

1. Compact 1P Space Layout

Traditional DC circuit breakers often occupy significant space. Our 1P (single-pole) design occupies only a narrow slot, making it ideal for home energy storage systems, mobile base stations, or space-constrained portable industrial equipment cabinets.

2. High-Purity 99.9% Copper Conductive System

The internal conductive components of the GREENWATT DC250V 250A 1P Molded Case Circuit Breaker utilize electrolytic copper with a purity of up to 99.9%.

● Low Resistance: Significantly reduces impedance when current flows.

● Low Heat Generation: Effectively controls temperature rise during continuous 250A operation.

● Long lifespan: Reduces damage to insulation materials and mechanical structures caused by thermal fatigue.

3. Dual protection mechanisms and rapid arc extinguishing

Short circuit protection: In the event of a short circuit, the GREENWATT circuit breaker can quickly interrupt the current within 50ms.

Overload protection: Provides stable tripping for abnormal currents exceeding 250A, while avoiding normal starting inrush currents to prevent false tripping.

Production & QC

At Greenwat, every DC250V 250A 1P Molded Case Circuit Breaker undergoes rigorous testing before leaving the factory:

High Current Trip Test: Verifies the accuracy of operation under 250A and overload conditions.

Insulation Resistance Test: Ensures safety under high voltage.

Mechanical Life Test: Simulates thousands of closing and opening operations.

Frequently Asked Questions (FAQ)

Q1: Can this 1P circuit breaker be used in AC systems?

A1: Not recommended. This model is specifically designed for DC250V DC systems. The arc extinguishing principle of DC circuits differs from that of AC. If used in AC systems, its protective performance cannot be guaranteed.

Q2: What are the environmental temperature requirements for a 250A current?

A2: It is recommended to use it within the range of -20°C to +60°C. If the ambient temperature consistently exceeds 40°C, it is recommended to appropriately reduce the rated current based on the actual temperature rise to ensure long-term stability.

Q3: How to install this 250A 1P MCCB?

A3: This GREENWATT product uses a standard bolt mounting method, which can be easily fixed to the base plate of the electrical cabinet. When wiring, please ensure that the torque meets the requirements to prevent overheating of the terminals.