G9KA High Power PCB AC Relay

Omron's G9KA relay supports high current applications with high capacity load ratings

Image of Omron's G9KA High Power PCB AC Relay Omron's SPST-NO relay supports high current applications with high capacity load ratings. The high capacity and low contact resistance characteristics make the G9KA ideal for PV inverters/power conditioners and industrial inverters, as well as UPS systems. This 200 A high power relay reduces the necessity 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 800 VAC.

Features and Benefits
  • 800 VAC; 50 A switch on, 200 A carry current, 50 A switch off at +85°C (30,000 ops N.O.)
    • Capable of supporting high capacity switching and carry currents
  • 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
  • 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
Applications
  • Power conditioner inverter
  • Industrial inverter
  • Uninterruptable power supply (UPS)
  • High voltage designs
Dimensions and PCB Layout

Image of Omron's G9KA Dimensions and PCB Layout

Power Saving Due to 45% to 60% Holding Voltage

Image of Omron's Power Saving due to 45-60% Holding Voltage

Precautions for G9KA Use

  • Do not connect to individual relays by probes or by socket; abnormal heat may be experienced by insufficient connections
  • Install and use relays with the recommended soldering conditions; avoiding recommendations may also lead to abnormal heat generation
  • Do not use dropped relays as the shock may cause improper relay operation

G9KA High Power PCB AC Relay

ImageManufacturer Part NumberDescriptionCoil VoltageAvailable QuantityView Details
HEAVY DUTY AC RELAY SPSTG9KA-1A DC12HEAVY DUTY AC RELAY SPST12VDC0View Details
HEAVY DUTY AC RELAY SPSTG9KA-1A DC24HEAVY DUTY AC RELAY SPST24VDC37 - ImmediateView Details
Published: 2021-08-09