Power relays for EV chargingEngineering360 News Desk | September 09, 2021
A new series of latching DC relays from Churod Electronics designed for power switching in 5G telecom power supplies is also a natural fit for electric vehicle (EV) charging piles and battery charging base stations.
This versatility is supported by a proprietary latching system that allows power switching with no continuous coil power consumption. The integrated auxiliary contact allows the user to ensure the relay’s state before passing the load. External magnets aid in arc-extinguishing for extended life and consistent performance.
The larger platform CHDR-L offers three versions providing switching loads of 80 A at 24 V DC, 110 A at 60 V DC and 125 A at 80 V DC. The more compact CHC platform wields contact ratings of 63 A at 80 V DC, 80 A at 60 V DC and 90 A at 48 V DC. To meet the environmental and safety needs across many applications, the CHDR-L is a sealed, PCB relay with a position-monitoring auxiliary contact. Loads can be passed without concern for polarity, making bi-directional charging applications a perfect fit for the CHDR-L and CHC.
Dual contact design gives the relay a high short circuit resistance (10 kA when used with a short circuit protection device breaker), offering protection against external surges such as lightning strikes.