GYH8-125 DC Switch Disconnector

The GYH8-125 DC Switch Disconnector is a robust isolation solution designed for high-power photovoltaic (PV) systems and DC industrial applications.

  • High Current Capacity: Rated for 80A, 100A, and 125A loads.
  • Non-Polarity Design: Ensures safer installation and eliminates reverse wiring risks.
  • Voltage Rating: Supports up to 1000V DC (4P) for demanding solar arrays.
  • Safety First: Features a built-in shorting bar, visible contact indication, and arc-extinguishing technology.
  • Standards: Fully compliant with IEC/EN 60947-3 and GB/T 14048.3.
SKU GYH8-125 Category

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.

Parameter Specification
Product Model GYH8-125DC
Category Non-polarity DC Switch Disconnector
Rated Current (In) 80A, 100A, 125A
Rated Voltage (Ue) 1P: 250V DC
2P: 500V DC
3P: 750V DC
4P: 1000V DC
Rated Insulation Voltage (Ui) 1000V
Rated Impulse Withstand Voltage (Uimp) 6kV
Rated Short-time Withstand Current (Icw) 12Ie (1s)
Rated Short-circuit Making Capacity (Icm) 20Ie (t=0.1s)
Wiring Capacity 0.5 – 25 mm²
Service Life Electrical: 1,500 cycles
Mechanical: 20,000 cycles
Installation Standard TH35-7.5 DIN Rail
Standards IEC/EN 60947-3, GB/T 14048.3, RoHS 2.0
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