vol.284 September 2024
Replacing contactors with relays contributes to smaller size, lighter weight, man-hour saving, and energy saving.
As efforts to achieve carbon neutrality are being promoted, there is a demand for PCB power relays that can handle the increasing capacity of power supply systems such as ESS. Many of the high-capacity relays are intended for such power supply systems.
However, it is also possible to replace general-purpose contactors with high-capacity relays, providing customers with various benefits. OMRON’s relays contribute to size reduction, work efficiency, and quality improvement of existing industrial facilities and equipment by replacing contactors.
Three benefits of replacing contactors with relays
Size and weight reduction
Reduces size and weight by several tens of percent *1
Man-hour saving
Fewer connections by adopting board wiring
Energy saving
Reduces coil power consumption with holding voltage drive
OMRON’s high-capacity PCB power relays are recommended to
replace contactors.
G9KA（-E）
G9KA（-E）
- Ultra-low CR*2 Initially 0.2 mΩ or less
- Capable of carrying current up to 1000 VAC, 300 A (-E type)
G7EB-1A-E2
G7EB-1A-E2
- Capable of switching and carrying current up to 800 VAC
- 150 A at an ambient temperature of 85°C
G9KC-4A1B
G9KC-4A1B
- 4-pole high-capacity relay capable of switching up to 480 VAC, 40 A
- Auxiliary contact option with mirror contact structure (conforming to IEC 60947-4-1)
G9KB（-E）
*1. According to OMRON’s research in July 2024
*2. CR: Contact Resistance
*3. 100 A switching up to a maximum of 600 VDC
* Contents as of August 2024.
In the interest of product improvement, specifications are subject to change without notice
