DNH1-1600/3 Fuse Switch Disconnector 800A–1600A Factory High-quality

DNH1-1600/3 Fuse Switch Disconnector Advantages

1. Wide Current Range for Flexible Applications
Available in 800A, 1000A, 1250A, and 1600A configurations, the DNH1-1600/3 adapts to a variety of industrial setups. This range enables system designers to precisely match the switch to the load requirements, thereby improving safety and efficiency.

2. Load-Break Operation
The switch can be operated under full load, allowing for safe isolation during maintenance without the need to shut down the entire system. This feature reduces downtime and ensures uninterrupted productivity.

3. Compliance with International Standards
Certified to IEC60947-3 and GB/T 14048.3, the device meets global safety and performance requirements, making it suitable for international projects and installations.

4. Heavy-Duty Design for Harsh Environments
With an operating temperature range of -25°C to +55°C, the DNH1-1600/3 maintains consistent performance in extreme conditions, from cold storage facilities to high-temperature industrial zones.

5. Enhanced Safety Features
The integrated locking device prevents unauthorized operation, reducing the risk of accidents. Its durable construction and precision engineering ensure long-term reliability.

6. Compact and Robust Construction
With dimensions of 380 mm width, 355 mm height, and 240 mm depth, the switch offers a space-efficient design for switchboards and panel assemblies. The unit weighs 13.5 kg without a fuse and 22.5 kg with fuse, making installation and handling easier.

Applications in Industrial and Renewable Energy Systems

The DNH1-1600/3 Fuse Switch Disconnector is widely used in:

• Low-voltage switchboards in industrial facilities

• Motor control centers for heavy machinery

• Renewable energy systems such as solar PV and wind power inverters

• Power substations for main and feeder circuit protection

• Marine and offshore platforms requiring high-current isolation switches

• Mining and heavy industry where rugged reliability is essential

• DNH1-1600/3 is a heavy-duty fuse type isolation switch with a rated current of 800A-1600A, which has both isolation and short-circuit protection functions. It is suitable for various high current and low voltage cabinets in industrial and large-scale distribution scenarios. Specific adaptation types: GGD (high current customized), GCK/GCS/MNS (high current module unit), GGJ (high current compensation type), JP cabinet customized for rural/park areas

Why Industrial Buyers Choose  Fuse Switch Disconnectors

As a leading manufacturer of industrial electrical protection devices, provides fuse switch disconnectors that combine:

• High breaking capacity to handle fault conditions safely

• Long service life under continuous operation

• International certification for global market compliance

• Customizable configurations for different voltage and current ratings

  Parameter	Value
  Rated Current (In)	800A / 1000A / 1250A / 1600A
  Rated Voltage (Ue)	690V
  Rated Insulation Voltage (Ui)	1000V
  Rated Impulse Withstand Voltage (Uimp)	12 kV
  Conventional Thermal Current (Ith)	1600A
  Usage Category	AC-21B (AC690V), AC-22B (AC400V), DC-21B (DC440V)
  Mechanical Lifespan	600 operations
  Operating Temperature	-25°C to +55°C
  Dimensions (W×H×D)	380 × 355 × 240 mm
  Weight	13.5 kg (without fuse) / 22.5 kg (with fuse)