Omron Digital Elements Europe has launched a brand new high-power PCB relay to be used in Stage 2 EV charging stations. The G9KC relay “supplies the bottom contact resistance out there in the marketplace and produces considerably much less load terminal warmth rise when in operation in comparison with equal units,” in keeping with the corporate.
Increased charging speeds might be achieved by utilizing increased currents—nonetheless, this requires the usage of higher-rated digital parts, ensuing within the era of extra warmth contained in the wallbox enclosure, which might have an effect on charging efficiency and trigger parts to put on prematurely. Balancing elevated quantities of warmth with the will to cut back a charger’s footprint is a serious problem for EV charger designers.
Omron’s G9KC relay incorporates a mechanically coupled double-break contact design that’s designed to allow an enchancment in power effectivity whereas decreasing warmth dissipation.
As Omron explains, the relay’s 4-pole construction implies that a single system can change bigger multi-pole contactors and combos of 1- and 2- pole, decreasing the footprint required. It has a assured preliminary contact resistance of lower than 6 mΩ.
Not like contactors, the G9KC might be mounted on a printed circuit board, which might help to facilitate smaller and lighter designs.
The G9KC has earned certification from UL/C-UL, TUV and CQC, and has been designed to satisfy the necessities of IEC 62955—Residual direct present detecting system (brief circuit functionality), and IEC 61851-1—Electrical automobile conductive charging techniques, together with different relevant requirements.
Supply: Omron