High quality NVR6V-500Y HVDC relay

This high-voltage DC relay, introduced by Sichuan Suchen New Energy, has a rated current of 500A and a maximum switching voltage of 1000VDC. The contacts are made of copper alloy with a contact resistance below 1mΩ (tested at 500A). The coil is available in three specifications: 12V, 24V, and wide-range 9–36V (with built-in PWM). The PWM version consumes 40W during activation and only 4W in holding mode, offering excellent energy efficiency. It operates within 40ms for energization and 25ms for de-energization. Both the load side and coil side are non-polarized, simplifying wiring. Optional auxiliary contacts are available, making it suitable for systems requiring stick detection or status feedback.

The overload capability is a standout feature of this high-voltage DC relay. It can operate continuously at 500A under 85°C ambient temperature and 240mm² copper busbar conditions, withstand 1200A for one minute, and endure 2000A for 15 seconds. The functional temperature limit is 130°C, with a short-term safe upper limit of 180°C. Maximum breaking current is 2000A (320VDC), insulation resistance exceeds 1000MΩ before testing, and the dielectric strength between open contacts reaches 3000VAC. Electrical life: 1000 make operations at 50V/500A and 1000 break operations at 1000V/200A; mechanical life is 200,000 cycles. It resists vibration up to 5G (10–2000Hz) and shock up to 50G, making it suitable for vehicle installation without issues.

Suitable for high-current applications such as energy storage systems, new-energy commercial vehicle battery packs, DC charging stations, and industrial power distribution. Operating temperature range: -40°C to +85°C; derating is required at altitudes above 2000m. Use M8 screws with 8–10 N·m torque on the load side, paired with 4–6 mm thick copper busbars. For installation, use M5 screws with 3–4 N·m torque. Before installing high-voltage DC relays stored for over three months, inspect the contact oxidation condition. Connectors and wiring harnesses are not included by default; auxiliary contact versions are available upon request.

High-voltage DC relays rated at 500A are primarily used in high-current applications such as energy storage and heavy-duty electric trucks, where requirements for overload capacity and reliability are significantly higher than those of standard automotive relays. The core advantage of the NVR6V-500Y lies in its ability to carry a continuous current of 500A without derating, withstand up to 2000A for 15 seconds, and incorporate a PWM energy-saving coil—making it highly practical for energy storage systems operating under sustained high currents. The product complies with RoHS 2.0 standards; for the latest specifications and procurement details, please contact Sichuan Shuchen New Energy directly.