G9KA-E 1000 VAC/300 A High Power PCB Relay
OMRON's SPST-NO relay supports high current applications
OMRON's G9KA-E SPST-NO relay supports high-current applications with high-capacity load ratings. This is the highest capacity PCB relay on the market as of January 2023*. The high capacity and low contact resistance characteristics make the G9KA ideal for PV inverters/power conditioners, industrial inverters, and UPS systems. This 300 A high-power relay reduces the need for complex temperature designs and inclusion of heat transfer devices due to low contact resistance compared to similar relays. It can support designs with high voltage requirements of up to 1,000 VAC.
*According to Omron's research findings
Features and Benefits
- 1,000 VAC; 50 A make, 300 A carry current, 50 A break at +85°C (30,000 ops N.O.)
- Capable of supporting high-capacity switching and carry currents
- Highest capacity PCB relay on the market as of January 2023 (according to Omron's research findings)
- Low initial contact resistance (0.2 mΩ max)
- Reduces heat generation due to contact resistance
- Lower heat generation results in a lesser need for materials such as heat sinks
- Holding voltage required is 45% to 60% of rated voltage
- Reduces power consumption to 1 W from 5 W when held at 45% of rated V
Applications
- Power conditioner inverter (PVI)
- Industrial inverter
- Uninterruptable power supply (UPS)
- High voltage designs
- EV charging stations
Precautions for G9KA Use
- Do not connect to individual relays by probes or socket; abnormal heat may be experienced by insufficient connections
- Install and use relays with the recommended soldering conditions avoiding recommendations may lead to abnormal heat generation
- Do not use dropped relays, as the shock may cause improper relay operation
Dimensions and PCB Layout
Power Saving Due to 45% to 60% Holding Voltage
Published: 2023-03-13
