High Voltage DC Relay NVR6V-400M from China Suppliers - Factory Direct for New Energy Vehicles and Energy Storage Systems
Core Performance Advantages
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.
Frequently Asked Questions
How does the NVR6V-400M relay handle arc extinguishing?
The NVR6V-400M High Voltage DC relay utilizes permanent magnet arc blowing technology. Its contacts are sealed in a ceramic cavity filled with high arc-extinguishing cooling gas, which prevents contact erosion by the DC arc and resolves the issue of difficult arc extinction in high-voltage DC circuits.
What is the environmental protection level of this High Voltage DC relay?
The relay features an IP67 protection rating, which effectively seals out dust and moisture, making it highly reliable for outdoor, vehicle-mounted, and other demanding environmental conditions.
What are the continuous and short-term current limits of the NVR6V-400M?
It supports a continuous current of 400A. For short-term tolerance, it can carry 500A for 2000s, 750A for 200s, 1000A for 65s, and 1350A for 28s. The contacts will not open under extreme currents of 2000A to 8000A, ensuring safety without fire or explosion.
What is the expected mechanical and electrical life of this relay?
The relay has a mechanical life of up to 200,000 operations. Electrically, it can achieve 25,000 operations under 450V/10A resistive load, 1,000 operations under 450V/400A resistive load, and 75,000 connections under 22.5V/140A capacitive load.
What are the insulation and dielectric withstand voltage specifications?
The insulation resistance is ≥ 1000MΩ@1000V DC between open contacts, and ≥ 50MΩ@1000V DC between closed contacts and the coil. It can withstand 3000V AC (50/60Hz, 1min) before testing and maintains 2250V AC withstand capability afterward.
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