High-Voltage DC Relay NVR6V-500 for New Energy Vehicles - China Suppliers & Factory
| Category | Performance Indicators |
|---|---|
| Electrical lifespan (resistive load) | 60V DC/500A connection: 10,000 times; 1000V DC/500A interruption: 200 times; 1500V DC/500A interruption: 100 times |
| Mechanical lifespan | 200,000 times |
| Insulation resistance | Disconnecting between contacts / Closing contacts and coil: Before the test, ≥ 1000 MΩ @ 1000 V DC; After the test, ≥ 50 MΩ @ 1000 V DC |
| Medium withstand pressure | Between the disconnected contacts: Before the test, ≥ 3000V AC (50/60Hz, 1 minute); After the test, ≥ 2250V AC; Between the closed contacts and the coil: Before the test, ≥ 2500V AC; After the test, ≥ 1875V AC |
| Environmental resistance performance | Mechanical impact strength: 50G; Stability: 20G; Random vibration: 10 - 2000Hz / 5G; Working/storage temperature: -40℃ to +85℃; Supports use at altitudes below 4000m. |
- 1. Install vertically, using M6 specification installation screws. The locking torque should be controlled within 6 to 8 N·m to avoid damaging the housing due to excessive tightness.
- 2. The thickness of the copper busbar at the load end is recommended to be 8 to 10 mm. The opening size of the holes should be matched according to the terminal specifications: M6 terminals have a φ6.0 to 6.5 mm hole, M8 terminals have a φ8.0 to 8.5 mm hole, and M10 terminals have a φ10 to 10.5 mm hole.
- 3. It is not recommended to install two copper busbars on the same side terminal to avoid high-voltage short circuiting and sparking.
- 4. Avoid installing near strong magnetic fields (around transformers and magnets) and heat-generating devices.
- 5. When the altitude exceeds 2000m, the usage should be reduced according to the requirements of IEC 60947-1 standard.
- 1. The static contacts are made of pure copper. If the storage time exceeds 3 months, the parameters need to be re-tested before use; if the contacts are oxidized and discolored, they need to be ground to remove the oxide layer before being put back into use.
- 2. The working environment temperature should not exceed 130℃ for long-term operation, and should not exceed 180℃ for short-term operation. Temperatures above 180℃ may cause the relay to fail.
- 3. In overcurrent scenarios, a suitable specification fuse needs to be matched: when the current exceeds 8000A, if the fuse fails to melt in time, the contacts may open, and in extreme cases, there is a risk of fire and explosion. A complete overcurrent protection mechanism needs to be provided.
- 4. For inductive loads (L/R ≥ 1ms), a surge absorption device needs to be connected in parallel; otherwise, it will reduce the electrical lifespan and cause poor disconnection.
- 5. If the relay falls, it is generally prohibited to use it again to avoid internal structure damage leading to faults.
The NVR6V-500 series High Voltage DC relay, with its ability to handle a current of 500A and withstand a voltage of 1500V, can fully cover mainstream application scenarios such as charging and discharging control in industrial and commercial energy storage stations, high-voltage circuit management for new energy vehicles, high-power DC charging stations, and 1500V photovoltaic grid-connected systems. It provides a stable and reliable circuit control solution for high-voltage DC systems.
What are the primary applications of the NVR6V-500 relay?
The NVR6V-500 is widely used in high-reliability scenarios including industrial and commercial energy storage stations, new energy vehicles (EVs), high-power DC fast charging stations, and 1500V photovoltaic (PV) grid-connected systems.
What is the electrical lifespan of the NVR6V-500 relay under different loads?
The electrical lifespan under resistive load is 10,000 operations for 60V DC/500A connection, 200 operations for 1000V DC/500A interruption, and 100 operations for 1500V DC/500A interruption.
What are the specific installation torque and screw requirements?
The relay must be installed vertically using M6 specification installation screws. The locking torque must be carefully controlled within 6 to 8 N·m to prevent damage to the outer housing.
How does operating temperature affect the NVR6V-500 relay?
For safe operation, the working environment temperature should not exceed 130°C for long-term use, and must never exceed 180°C for short-term operation. Exceeding 180°C may lead to relay failure.
Can the relay be reused if it has been dropped?
No. If the relay is dropped, it is strictly prohibited to reuse it. Dropping can cause internal structural damage that may lead to operational faults or safety hazards.
What maintenance is required for long-term storage of the relay?
The static contacts are made of pure copper. If stored for more than 3 months, they must be tested before use. If oxidation or discoloration occurs, the contacts must be ground to remove the oxide layer before installation.
What to know about this product?
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