Description
GYH8-125: Heavy-Duty DC Isolation for Solar & Industrial Systems
The GYH8-125 DC Switch Disconnector is the upgraded, high-capacity version of our trusted DC isolator series. Engineered to handle currents up to 125A, this switch serves as the main disconnect in electrical terminal combinations. It is specifically designed for isolating circuits in photovoltaic power generation, communication power systems, and heavy-duty DC control circuits.
Key Features & Advantages
1. Non-Polarity Safety Design
Unlike traditional DC switches, the GYH8-125 features a non-polarity design. This critical safety feature simplifies installation, reduces the risk of wiring errors, and ensures the switch operates effectively regardless of the current direction—vital for complex solar combiner boxes.
2. High Load & Voltage Capability
Built for modern energy demands, this isolator supports high operational loads with rated currents of 80A, 100A, and 125A. It offers flexible voltage configurations to match your system architecture:
- 1P: 250V DC
- 2P: 500V DC
- 3P: 750V DC
- 4P: 1000V DC
3. Integrated Design for Efficiency
The unit comes with a built-in shorting bar, enhancing conductivity and making wiring faster and neater. The enclosure is designed with a clear contact position indicator (Green/Red), providing immediate visual confirmation of the switch status for maintenance personnel.
4. Durability & Compliance
Manufactured to meet IEC/EN 60947-3 and GB/T 14048.3 standards, the GYH8-125 is RoHS 2.0 compliant. It boasts a mechanical life of 20,000 cycles and an electrical life of 1,500 cycles, ensuring long-term reliability in harsh environments.










