2P 125A Circuit Breaker
The 2P 125A Circuit Breaker (MCB) is a heavy-duty protective device engineered for solar photovoltaic systems, energy storage, and industrial DC power distribution. it provides dependable overcurrent and short-circuit protection, keeping your PV arrays, combiner boxes, and DC distribution boards safe and stable. Featuring a compact DIN-rail design, fast arc-extinguishing mechanism, and a rugged, UV-resistant housing, it is built to perform reliably in high-temperature and outdoor environments over a long service life.
The is a professional-grade protective device designed for solar photovoltaic systems, energy storage, and industrial DC power distribution. With a rated current of 125A and a rated voltage of 800V DC, it delivers powerful and reliable overcurrent and short-circuit protection for high-capacity PV arrays, combiner boxes, and DC distribution boards.
Built around a high-speed arc-extinguishing mechanism, this MCB trips quickly and safely under fault conditions, minimizing equipment damage . Its compact DIN-rail design allows fast, tool-free installation, while the flame-retardant, UV-resistant housing ensures stable performance in outdoor, high-temperature, and humid environments.
Compliant with international safety standards (IEC 60947-2 ), the 125A 800V DC Miniature Circuit Breaker is the dependable choice for protecting modern solar and DC power systems — from residential PV setups to large-scale commercial and industrial installations.
UL 1077 Certified Supplementary Protector
This 125A 2P Circuit Breaker is certified to UL 1077 (Standard for Supplementary Protectors for Use in Electrical Equipment) and CSA C22.2 No. 235, carrying the cULus mark for both the United States and Canada.
UL 1077 certification verifies that the device provides reliable supplementary overcurrent protection — combining thermal overload protection with magnetic short-circuit protection — for use within electrical equipment and appliances. It is designed to protect downstream equipment and sub-circuits inside control panels, power supplies, and industrial or solar equipment, where branch circuit protection is already provided or not required.
This 125A, 2-pole configuration delivers high-capacity, dependable protection with fast tripping response, suitable for demanding DC and industrial applications.
Overview
The is a high-capacity protective device purpose-built for solar photovoltaic systems, energy storage, and industrial DC power distribution. Rated at 125A and 800V DC, it reliably isolates and protects circuits from overcurrent, overload, and short-circuit faults, ensuring the safe and stable operation of PV arrays, combiner boxes, and DC distribution boards.
Key Features
- Fast & Reliable Tripping: High-speed arc-extinguishing mechanism responds quickly to fault conditions, protecting connected equipment .
- Compact DIN-Rail Design: Standard 35mm DIN-rail mounting enables fast, tool-free installation and easy maintenance.
- Built for Outdoor Use: Flame-retardant, UV-resistant housing withstands high temperatures, humidity, and harsh environments.
- International Standard Compliance: Manufactured in line with IEC 60947-2 safety standards for reliable, certified performance.
- Low Energy Loss: Optimized internal design minimizes power consumption and heat generation during normal operation.
OEM / ODM Custom Manufacturing
Why Partner With Us
We are a professional manufacturer of miniature circuit breakers and electrical protection devices, offering flexible OEM and ODM services for brands, distributors, and system integrators worldwide. Whether you need a private-label circuit breaker or a fully customized product, we deliver factory-direct quality at competitive prices.
What We Offer
- Private Label & Custom Branding: Your logo, brand name, and model code printed on the product, packaging, and user manual.
- Custom Packaging: Retail boxes, wholesale cartons, and export packaging designed to your specifications.
- Custom Specifications: Adjustable rated current, voltage, tripping curve, poles, and breaking capacity to meet your market’s needs.
- Custom Design (ODM): New product development and appearance design based on your requirements.
- Certification Support: Products available with IEC, TÜV, CE, and other international certifications as required.
Our Advantages
- Factory-direct pricing with no middlemen
- Strict quality control at every production stage
- Fast sample turnaround and short lead times
- Flexible MOQ to support both small and large orders
- Reliable packaging and on-time global shipping
Our Workflow
- Inquiry — Send us your requirements (specifications, quantity, branding).
- Quotation & Sample — We provide a quotation and product samples for approval.
- Confirmation — Confirm design, packaging, and specifications.
- Production — Mass production with strict QC inspections.
- Shipping — On-time delivery with proper export packaging.
| Product Series | YRL7-125DC |
| Rated Current | 125A |
| Rated Voltage | 800V |
| Impact-Resistant Voltgae | 6kV |
| Ambient Temperature | -30℃~70℃ |
| Standard | IEC/EN60947-2 |
