High Voltage DC Relay NVR6V-400M for New Energy Vehicles - China Suppliers & Factory Quality
1. High reliability arc extinguishing and sealing design
As a professional High Voltage DC relay, NVR6V-400M adopts permanent magnet arc blowing technology. The contacts are sealed inside a ceramic cavity and filled with high arc-extinguishing performance cooling gas, completely avoiding the erosion of the contacts by the DC arc, and solving the industry pain points of no natural zero-crossing point and difficult arc extinction in high-voltage DC circuits. The IP67 level of protection can effectively prevent dust and moisture from invading, and is suitable for outdoor, vehicle-mounted and other complex working conditions.
2. Wide current tolerance range
This High Voltage DC relay supports a continuous current of 400A, and has outstanding short-term current tolerance: 500A can be carried for 2000s, 750A for 200s, 1000A for 65s, 1350A for 28s, and the contacts do not open under currents ranging from 2000 to 8000A, only possible to stick together, no fire or explosion, fully covering extreme current scenarios such as short circuits and surges.
3. Ultra-long service life performance
In terms of electrical life, under resistive load at 450V/10A, it can achieve 25,000 times of opening and closing; under resistive load at 450V/400A, it can achieve 1,000 times of opening and closing; under capacitive load at 22.5V/140A, it can achieve 75,000 times of connection; the mechanical life is up to 200,000 times, far exceeding the average level of ordinary industrial relays, effectively reducing the maintenance cost of the equipment in the later stage.
4. Excellent insulation withstand voltage performance
The insulation resistance between the open contacts is ≥ 1000MΩ@1000V DC, the insulation resistance between the closed contacts and the coil is ≥ 50MΩ@1000V DC; before the dielectric withstand test, it can reach 3000V AC (50/60Hz, 1min), and still maintains 2250V AC withstand capability after the test, complying with the safety specifications of high-voltage electrical equipment, and eliminating the risk of high-voltage breakdown.
Q: What is the continuous current rating of the NVR6V-400M relay?
The NVR6V-400M High Voltage DC relay supports a continuous current rating of 400A, with excellent short-term tolerance capabilities for higher surge currents.
Q: How does the relay handle arc extinguishing in high-voltage circuits?
It utilizes permanent magnet arc blowing technology. The contacts are sealed inside a ceramic cavity filled with high arc-extinguishing performance cooling gas to prevent contact erosion.
Q: What is the protection rating of this High Voltage DC relay?
The relay features an IP67 protection rating, making it highly resistant to dust and moisture, and suitable for outdoor and vehicle-mounted applications.
Q: What is the mechanical and electrical life expectancy of the NVR6V-400M?
It has a mechanical life of up to 200,000 times. Electrically, it can achieve 25,000 operations at 450V/10A resistive load and 1,000 operations at 450V/400A resistive load.
Q: What are the insulation resistance parameters of this relay?
The insulation resistance between open contacts is ≥ 1000MΩ@1000V DC, and between closed contacts and the coil is ≥ 50MΩ@1000V DC.
Q: What happens to the contacts under extreme short-circuit currents?
Under extreme currents ranging from 2000A to 8000A, the contacts will not open (they may stick together) and there is no risk of fire or explosion, ensuring safety under extreme fault conditions.
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