High-Quality 50A 750VDC DC Relay NVR6V-50Y from China Factory - Trusted Suppliers for Custom Solutions
Product characteristics
- The product is complies with RoHS requirements;
- The product’s contact part is sealed to meet IP67 requirements;
- Small size, lightweight, safe and reliable;
- Strong anti-magnetic interference capability and explosion-proof;
- Relays can be customized according to customer requirements, such as installation position, etc.;
- Contacts are sealed in a ceramic chamber and filled with gas that has a high cooling arc capability;
- DC relay permanent magnet arc blowing, high voltage DC disconnection, there are polarity requirements at the contact end, and no polarity requirements at the coil connection end.
Coil specification
| Nominal Voltage (VDC) | Pull-in Voltage (VDC) | Release Voltage (VDC) | Rated Power (W) |
|---|---|---|---|
| 12 | ≤8.4 | ≥1 | 5.5 |
| 24 | ≤16.8 | ≥2 | 5.5 |
Product Applications
- 1. Battery charging system;
- 2. High-power DC equipment;
- 3. Renewable energy storage;
- 4. General industrial equipment and other occasions;
- 5. Fuel cell & Solar System;
- 6. Infrastructure related to new energy;
- 7. New energy vehicles and hybrid electric vehicles.
DC relay is a kind of switchgear used to control the current in the direct current circuit, which is widely used in many fields. Its main uses include the switch and protection of battery charging and discharging lines in new energy vehicles, and the safety mechanism to prevent equipment failure, short circuit and fire. In addition, DC relays are also used in industrial automation, power systems and rail transit, such as controlling the switch of HVDC transmission lines, the operation of large mechanical equipment, and the start, braking and speed regulation of trains.
Product advantages
◆ DC relay permanent magnet arc blowing and high voltage DC disconnection have the following advantages:
Improve the arc extinguishing ability
The permanent magnet blowing arc extinguishing technology generates a strong magnetic field near the arc, so that the arc is wound into a spiral shape, increasing its length and resistance, thereby accelerating the dissipation of energy and achieving the purpose of quickly extinguishing the arc. This technology can significantly improve the arc extinguishing performance of the relay and the service life of the contact.
Enhance the impact resistance of the contact
In the high voltage DC system, because the DC current does not exist zero crossing, the arc is more difficult to extinguishment, which is easy to lead to serious contact ablation, reducing the electrical life and reliability of the product. By speeding up the breaking speed of the contact and improving the blowing magnetic field, the arc blowing technology of permanent magnet can effectively reduce the damage of the arc to the contact and improve the impact resistance of the contact.
Adapt to high voltage environment
The high voltage DC relay needs to cut off the circuit at high voltage, and the permanent magnet blowing arc technology can quickly cut off the high voltage DC load, avoid the occurrence of abnormal conditions such as contact adhesion or relay explosion, and ensure driving safety. This technology is especially suitable for high voltage applications such as new energy vehicles and charging piles.
Improved reliability
The combination of the permanent magnet blowing arc technology and the design of the HVDC relay enables fast and reliable circuit switching. This is particularly important for applications under complex working conditions such as new energy vehicles, because these occasions usually require the relay to be able to successfully cut off the circuit at the limit of large current.
Miniaturization and lightweight
High-voltage DC relays using permanent magnet arc blowing technology can be miniaturized and lightweight, while filling hydrogen with high arc cooling capacity through sealing technology to further improve their arc extinguishing performance and reliability.
The technology of permanent magnet blowing out arc and high voltage cutting off has obvious advantages in HVDC relay, especially in improving arc extinguishing ability, enhancing contact shock resistance, adapting to high voltage environment and improving reliability. These advantages make the permanent magnet arc blowing technology an important part of HVDC relays, especially in the application of new energy vehicles and renewable energy systems.
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