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EV Charging Station Relays
-- Steady & Reliable Manufacturer --
EV Charging Station Relays
Engineered for high-current switching in electric vehicle charging infrastructure
Introduction
Electric vehicle charging stations require switching components capable of handling frequent start-stop cycles under high current loads. The relays used in these systems must maintain stable contact resistance over tens of thousands of operations while withstanding the thermal stress generated during fast charging sessions. Huajin Technology manufactures magnetic latching relays specifically engineered for EV charging infrastructure, offering configurations suitable for both AC and DC charging stations.
Specifications
| Parameter | Specification |
|---|---|
| Contact Current Rating | 10A – 120A |
| Coil Voltage Options | 5V, 12V, 24V, 48V DC |
| Contact Form | 1A, 1B, 1C, 2A |
| Initial Contact Resistance | ≤ 50 mΩ |
| Electrical Life (Resistive Load) | ≥ 10,000 operations |
| Mechanical Life | ≥ 100,000 operations |
| Dielectric Strength (Coil to Contact) | ≥ 4000 VAC / 1 minute |
| Surge Withstand Voltage | ≥ 6000 V |
| Operating Temperature | -40°C to +85°C |
| Safety Approvals | CCC, TUV, State Grid |
Applications
- AC charging stations (Mode 2 and Mode 3)
- DC fast charging stations
- On-board chargers for electric vehicles
- Charging pile control modules
- Portable EV charging equipment
Advantages
- Magnetic latching reduces power consumption by over 90 percent
- Bifurcated contacts for reliable DC switching
- Arc chamber design extends electrical life
- PCB terminal options for automated assembly
- Sealed construction for outdoor installations
Frequently Asked Questions
What current ratings are available for EV charging station relays?
Our EV charging relays are available in current ratings from 10A to 120A. The specific rating depends on the charging station power level. For AC charging stations, 10A to 40A configurations are commonly used. For DC fast charging stations, 60A to 120A versions are available to accommodate higher power transmission requirements.
Are these relays suitable for outdoor charging pile installations?
Yes. The relays feature sealed construction with IP-rated protection against dust and moisture. The operating temperature range of -40°C to +85°C ensures reliable performance across diverse climate conditions. Additionally, the terminals are treated with anti-oxidation coating to prevent corrosion in humid environments.
What is the typical coil power consumption?
Due to the magnetic latching mechanism, coil power consumption is approximately 0.2W during the pulse operation. Once switched, the relay maintains its state without continuous coil energization, resulting in over 90 percent power saving compared to conventional monostable relays. This characteristic is particularly beneficial for battery-powered EV charging applications.
Can these relays pass State Grid certification requirements?
Our relays have obtained State Grid certification and comply with the technical specifications for relay protection devices used in power distribution networks. The certification covers dielectric strength, surge withstand capability, temperature rise limits, and electrical life testing under specified load conditions.
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Established in May 2021
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Annual exports account for about 30%
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The company occupies an area of 8,000 square meters.
Huajin Technology Jiaxing Co., Ltd. was established in May 2021 and is located at 707 Yanyu Road, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province. It is a high-tech enterprise specializing in the research and development, production, and sales of relays.The registered capital of the company is 10 million yuan, covering an area of 8000 square meters, with more than 120 employees. The annual production capacity of magnetic latching relays is over 10 million, of which exports account for about 30%. The company has obtained ISO9001-2015 quality management system certification, and its relays have passed CCC certification, State Grid certification, TUV certification, etc. It also holds multiple technical patents. Our main products include motor relays, single-phase, two-phase, and three-phase magnetic latching relays, which have a wide variety of types and can meet various customized solutions for customers.
