AC PCB relay delivers high current and voltage capacity

Update: March 17, 2023

Omron Electronic Components Europe has expanded its AC Relay portfolio to deliver its highest current and voltage capacity for AC PCB relays. The new G9KA-E has a voltage capacity of up to 1000VAC and a current of up to 300A, one of the highest specifications in the PCB relay market.

The new series guarantees a mechanical lifetime of 100,000 operations. Its ultra-low contact resistance of 0.2mOhm maximum minimises contact terminal heating enabling it to carry high current loads. The plunger-type relay structure supplies high endurance and lower power consumption, while well-designed terminals enhance heat dissipation, further enhancing safety and longevity.

Applications comprise grid-tie inverters and UPS, and the series can be applied to inverters for photovoltaic and energy storage systems. The device is particularly suitable for use in 200-400kVA/600-800VAC inverters. The AC PCB relay is also excellent for UPS input and output lines, supplying disconnect from the grid and the load. A singular advantage here is its suitability for power supplies incorporating 100-200kVA, Three-Phase 400VAC input/output circuits.

Replacing traditional contactors in all applications, these new PCB high-power relays decrease system weight and size while providing simpler manual or automated assembly.