High-Performance NVR6V-500X HVDC Relay 500A for EVs & ESS - China Suppliers & Factory Direct
The NVR6V-500X DC relay is a high-performance DC contactor with a rated current of 500A. It adopts ceramic sealed arc extinguishing technology and supports voltage switching up to 1000Vdc. It is suitable for high-voltage DC scenarios such as electric vehicles, energy storage systems, DC fast charging stations, and industrial DC power distribution.
The product features a dual-coil design, with an activation power consumption of approximately 36W and a holding power consumption as low as about 6W. It balances fast response and energy-saving requirements, has a mechanical life of 200,000 times, and its reliability has been rigorously verified.
The model code follows a clear rule: NVR6V represents ceramic sealed type, 500 is the rated current, X is the series code, and the suffix defines the rated voltage (450V/750V/1000V), coil voltage (12V/24V), contact form, and lead-out configuration, facilitating customers to select according to their needs.
The main contact of this DC relay has a contact resistance of ≤0.5mΩ, can sustain 500A current continuously, and can withstand up to 2000A/5s in short-term. The contact material is copper alloy, with a breaking capacity of 2000A/1000Vdc (1 time).
The product can be optionally equipped with an auxiliary contact version (FC5) for contact status monitoring. The accompanying connector is compatible with brands Yazaki and THB, with compact installation dimensions (total height 95.4mm, width 95mm), weighing approximately 630g, and suitable for equipment integration in limited spaces.
In terms of application scenarios, the NVR6V-500X DC relay is widely used in the on-off of high-voltage circuits in electric vehicles, battery energy storage system charging and discharging switching, power module protection in DC fast charging stations, UPS DC bus control, and DC-side switches of photovoltaic inverters.
The product operates within a temperature range of -40°C to +85°C, with altitude adaptability up to 4000m (above 2000m requires reduced capacity in accordance with IEC 60947-1), and has 50G mechanical shock and 5G random vibration tolerance to ensure stable operation in vehicle-mounted and industrial vibration environments.
When installing and using, please note:
1. The dual-coil startup must adopt the voltage pulse rising mode, and the voltage slow rise will not cause activation.
2. The copper bus installation must use M8 screws with a torque of 8~10N·m, with a copper bus thickness of 8~10mm, and a flatness of ≤0.1mm. It is prohibited to install two copper buses on the same side to prevent short circuits.
3. The installation screws are of M5 specification, with a torque of 3~4N·m, and a need for a washer.
4. The contact surface must not be coated with grease or corrosive liquids.
5. For inductive loads (L/R ≥ 1ms), a surge absorption device must be paralleled; otherwise, it will shorten the electrical lifespan.
6. The product complies with RoHS 2.0 standards, with pure copper as the static contact material, and it is necessary to check the oxidation condition before use after long-term storage.
This DC relay integrates ceramic arc extinguishing, dual-coil energy saving, compact and lightweight design, and high vibration resistance. It is currently the most cost-effective and reliable high-voltage DC contactor available on the market.
If you need a 12V or 24V coil version, an auxiliary contact version, or special code customization, please contact Chengdu Shouchen Environmental Protection Materials Co., Ltd. for technical support and bulk quotations.
Q1: What is the rated current and maximum voltage capacity of the NVR6V-500X?
A1: The NVR6V-500X DC relay features a rated current of 500A and supports high-voltage DC switching of up to 1000Vdc.
Q2: How does the dual-coil design optimize energy consumption?
A2: The dual-coil design uses approximately 36W for activation and drops to a holding power consumption of only about 6W, balancing fast response with energy-saving efficiency.
Q3: What are the primary application environments for this relay?
A3: It is widely used in high-voltage circuits for electric vehicles, battery energy storage systems (BESS) charging/discharging switching, DC fast charging stations, UPS DC bus control, and photovoltaic inverter DC-side switches.
Q4: What are the key installation requirements for the copper bus?
A4: The copper bus must be installed using M8 screws with a torque of 8~10N·m, a bus thickness of 8~10mm, and a flatness of ≤0.1mm. Do not install two copper buses on the same side to prevent short circuits.
Q5: What environmental tolerances does this DC contactor support?
A5: It operates reliably between -40°C to +85°C, adapts to altitudes up to 4000m (capacity reduction required above 2000m), and withstands 50G mechanical shock and 5G random vibrations.
Q6: Can I customize the coil voltage or add monitoring options?
A6: Yes. The relay can be customized with 12V or 24V coil versions, and optionally equipped with an auxiliary contact version (FC5) for contact status monitoring.
What to know about this product?
SEND A MESSAGE
Something isn't Clear?
Feel free to contact me, and l will be morethan happy to answer all of your questions.