BH-800 1500V 800A DC Disconnect Switch for Solar PV Systems
BENY BH-800 DC Disconnect Switch is a high-performance DC load break switch designed for solar PV inverters, combiner boxes, battery energy storage systems (BESS), and other DC power equipment. The switch is developed and tested in accordance with IEC 60947-3, providing reliable DC circuit isolation and load switching for photovoltaic and energy storage applications.
With a rated voltage of up to 1500V DC and a rated current of up to 800A, the BH-800 ensures safe disconnection during maintenance and emergency shutdown operations, helping protect both personnel and equipment in demanding renewable energy environments.
Key Features & Benefits
- Polarity-free design simplifies wiring and reduces installation errors for both positive and negative DC connections.
- 5,000 mechanical operating cycles ensure long service life for front-mounted and side-mounted operating mechanisms.
- Ultra-low contact resistance ≤0.18 mΩ (2P) minimizes power loss, heat generation, and energy consumption.
- Up to IP66 enclosure protection provides reliable operation in outdoor and harsh industrial environments.
- Patented operating mechanism and arc-extinguishing system enhance switching safety and reliability under high-voltage DC conditions.
- Compact structure for easy integration into PV combiner boxes, inverter cabinets, and DC distribution panels.
Typical Applications
- Solar photovoltaic inverter systems
- PV combiner boxes
- Battery energy storage systems (BESS)
- DC distribution cabinets
- Renewable energy power stations
- Industrial DC power systems
Why Choose ZBENY BH-800?
The BH-800 combines IEC-compliant safety performance, low power loss, and robust environmental protection in a compact and installation-friendly design. It is engineered for long-term operation in utility-scale solar and energy storage projects, making it a dependable choice for EPC contractors, inverter manufacturers, and electrical equipment integrators.
Appearance Introduction
1 Brand
2 Model
3 On Off
4 Rated Current
5 Nominal Insulation Voltage
6 Rated Withstand Voltage
7 Utilization Category
8 Auxiliary Contact
9 Rated Voltage
10 Certificate Mark
11 Electrical Symbol
Parameter
| Electrical Characteristics | ||
| Rated Working Voltage (Ue) | 1000V / 1500V DC | |
| Rated Current (Ie) | 630A | 800A |
| Rated Impulse Withstand Voltage (Uimp) | 12kV | |
| Rated Short-Time Withstand Current, 1 s (Icw) | 10kA | |
| Rated Short-Circuit Making Capacity (Icm) | 10kA | |
| Contact Resistance | ＜0.5mΩ | |
| Installation Environment | ||
| Utilization Category DC | DC-PV2 | DC-PV1 |
| Number of cycles of operation(With current) | 200 | 100 |
| Number of cycles of operation(Without current) | 5,000 | |
| Poles | 2 | |
| Mounting | Base Screws Mounting | |
| Screw for Mounting (M5) | 2.0–3.0 N·m | |
| Wiring Screw (M14) | According to IEC 60947-1, 20 N·m | |
| Ambient temperature allowed between | −40°C to +85°C | |
| Storage temperature allowed between | −40°C to +85°C | |
| Relative Humidity | 90% | |
| Pollution Degree | 3 | |
| IP rating terminals | IP20 | |
| Outside the ark handle | IP66 | |
Dimension(mm)
Switches and accessories
Accessory
| Name | The attachment list |
| Standard configuration | ■ Handle |
| ■ Coupling square shaft (The standard length is 182 mm) | |
| ■ Interphase barrier | |
| ■ M14 Binding kits | |
| ■ Specification | |
| Optional | □ Auxiliary contact |
| □ Coupling square shaft – Custom length: ____ mm |
Wiring Graph
| Model | Wiring Graph | Ue rated operational voltage DC Volts | Rated operationnal current | Poles in series | Number of Strings |
BH-800 |
 |
1000V/1500V | 630A/800A | 1 | 1 |
| Example | |||||
 |
Product Selection
| Model | Front Operation | The side operation | ||
| BH-800-2P | BH-800-2P-A | BH-800-2P-B | BH-800-2P-A1 | |
| BH-800 |  |
 |
 |
 |
Dimension(mm)
Derating data
Derating Temperature
Derating Altitude
| Altitude | 2000m | 3000m | 4000m | 5000m |
| Power Frequency Withstand Voltage | 3820VDC | 3820VDC | 3820VDC | 3820VDC |
| Insulation Voltage | 1500VDC | 1500VDC | 1500VDC | 1500VDC |
| Working Current | 800A | 800A | 780A | 785A |
| Working Voltage | N/A | N/A | N/A | N/A |
Installatioin and use
The connecting conductor shall be copper conductor or equivalent copper row.The sectional area shall be selected according to the table.
| Rated Current(A) | Recommended Copper Conductor Cross-sectional Area |
|---|---|
| 630A | 2 × 185 mm² |
| 800A | 2 × 240 mm² |
WARNING:
Verify that all connections (including bridging link connections) are suitable for the rated current, prepared to ensure only conductive parts are clamped and tightened to the manufacturer's required torque before energization.
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