Dear Friends,

Moving electrical energy efficiently is only half the challenge. At some point, every energy storage system, charging station, or bidirectional power architecture must also disconnect that energy safely and reliably, often under conditions that are far less forgiving than most AC systems ever encounter.

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Kind regards,
Bodo Arlt

OMRON G9KD Series PCB High-Power Relays are engineered for demanding high-voltage DC switching applications, delivering reliable performance in energy storage systems (ESS), EV charging infrastructure, and V2X environments. Designed to handle up to 1500VDC and 150A, the G9KD combines high power capacity with a compact footprint, helping designers optimize space without sacrificing performance.

Featuring a gas-less design and low starting contact resistance of ≤4Ω, these relays support efficient power management while minimizing energy losses. An optional 1b auxiliary contact enables contact failure monitoring, providing additional system visibility and reliability.

Built to withstand demanding operating conditions, the G9KD offers a impulse withstand voltage of 12kV and operates across a temperature range of -40°C to +85°C. With a mechanical life rating of 500,000 operations on -1A type and 100,000 operations on -1A1B type, it delivers the durability required for long-term deployment in critical applications.

For high-capacity DC switching, OMRON G9KD relays provide the performance, reliability, and monitoring capabilities needed for next-generation power systems.