Vol.302 March 2026
Expanding our lineup of high-capacity relays to support
various power infrastructures
Achieving carbon neutrality is being demanded globally as a
measure against global warming. In the power infrastructure
field, development is underway for various devices ranging from household to industrial applications.
OMRON is expanding its lineup of high-capacity relays to accommodate these various power infrastructures, ranging
from those optimized for specific circuit applications to general-
purpose models.
it’s difficult to increase the capacity of power infrastructure equipment while simultaneously making it smaller and lighter.
OMRON contributes by providing relays that combine high capacity with compact and lightweight designs.
To suppress heat generation that increases with
rising current, additional space is required
for heat dissipation components
The number of heat dissipation components is reduced by suppressing heat generation with an ultra-low contact resistance of 0.2 mΩ and expanding the terminal surface area
Power Relay
G9KA-1A1B-E
*1. Up to 1,000 VDC at 150 A breaking
Due to increased inrush current,
space is required to add a large relay for the inrush protection circuit
It has become possible to miniaturize the relay by specializing in inrush current protection
Power Relay
G9KJ
Increasing capacity using a DC power supply
requires large switching devices
such as contactors
PCB relay capable of handling
up to 1,500 VDC, 150 A*1
Achieves significant size and weight reduction
Power Relay
G9KD
* Contents as of February 2026.
In the interest of product improvement, specifications are subject to change without notice
