OMRON: Taking control in EV charging
OMRON power relays enable the development of EV chargers with high-capacity output to achieve shorter charging time. From DC fast chargers to applications in photovoltaic power systems, OMRON’s control technology solutions bring the highest reliability, safety and energy-efficiency to EV charging.
PCB Power Relays
G2RL-E2
The OMRON G2RL-E2 series features a low profile of just 16.7mm and is rated for operating temperatures up to 105°C. This model provides a 23A switching capacity, with a long life of 100,000 operations. Features of the new relay include reinforced coil-contact insulation able to withstand a 10 kV Impulse voltage. Clearance and creepage distances are at least 8mm.
OMRON’s G2RL PCB relay family is the ideal low-profile, high-capacity switching solution for EV charging systems. The family offers a wide variety of 15.7mm high single pole, double pole relays with switching capacities of 8-16A, including a high sensitivity type with a coil sensitivity of 250mW.
G4A-1A
The G4A-1A relay model delivers high switching power and long endurance within a small packing. This miniature single-pole relay has an 80A surge current and 20A switching current capacity. It also has a highly noise-resistive insulation and a creepage distance of 6.4mm, which conforms to UL and CSA standards.
G6QE-1A
At a size of just 30.5x16x20.5mm the G6QE-1A Power Relay is not only miniature but also incredibly versatile. It allows smaller size designs and higher performance applications with a high switching capacity of 36A and 10,000 operations. This low height single-pole power relay achieved 10-kV impulse withstand voltage and a reduced power consumption of 12% compared to rated coil consumption. The G6QE has been designed to conform with cULus, EN and CQC standards.
G7EB
Aimed at distribution power conditioning systems (PCS), the OMRON G7EB can switch up to 100A at 480Vac. Its ultra-low 5 milliohm contact resistance greatly reduces heat generation within the component and minimizes energy waste. As a result, the G7EB experiences a temperature rise to about +40ºC with a 100A carry current. This 40.5x50.5x37mm relay helps reduce overall system size, while its reduced requirement for heat sinks yields further space savings for the system designers.
G7L-X
Some chargers use circuits that enable switching the output voltage to charge both high-voltage battery (1,000V) vehicles, i.e., electric trucks and buses, as well as low-voltage battery (500V) electric passenger vehicles. The OMRON G7L-X series are compact power relays (52.5mm × 35.5mm × 41.0mm) that achieve high-capacity DC breaking and switching between 600 to 1,000 VDC. Designed for safety with 6.0mm contact gap, the two-pole contacts offer 20A or 25A maximum switching current. The G7L-X applications also include photovoltaic power systems, inverters and DC links.
General Purpose Power Relays
G7J
Utilized as contactors, the OMRON G7J series are high-capacity, high-dielectric-strength, multi-pole power relays. They include a miniature hinge providing maximum switching power for motor loads, as well as resistive and inductive loads. Withstanding more than 4 kV between contacts that are different in polarity, and between the coil and contacts, they are also immune to contact chattering for momentary voltage drops of up to 50% of rated voltage. The G7J standard models are approved by UL and CSA.
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