G9KB Series High Power PCB DC Relay
Omron's G9KB series supports high current applications with high capacity load ratings
Omron's G9KB and G9KB-E series SPST-NO relays support high current applications with high capacity load ratings. The relay's high capacity characteristics make the G9KB and G9KB-E relays ideal for energy storage systems, power conditioning, and electric vehicle charging applications. This product can switch up to 100 A at 600 VDC or 50 A at 800 VDC bidirectionally, eliminating the need for multiple switching components to alternate forward and reverse currents. The G9KB family has been developed with high-performing arc cut-off technology to combat contact arcing typical with large DC power applications.
White Paper: 600 VDC 50 A High-power PCB relay G9KB Instruction of Product Performance and Reference Circuit
- 50 A at 600 VDC (2,000 operations)
- Capable of supporting high capacity DC loads
- Holding voltage required is 45% to 60% of rated voltage
- Reduces power consumption to 560 mW from 3.4 W when held at 45% of rated V
- Bidirectional switching with arc cut-off
- Eliminates the need for two relays in the case of DC forward/reverse currents
- Swift extinguishing of arc provides a safer switching of high DC voltage loads
- 100 A at 600 VDC (100 operations) UL certified
- Capable of supporting high capacity DC loads
- 50 A at 800 VDC (10 operations) UL certified
- Useful UL certifications for EV chargers and energy storage applications
- Energy storage systems
- Power conditioner systems
- EV chargers
- V2H and V2X chargers
- High voltage designs
Dimensions and PCB Layout
G9KB Series High Power PCB DC Relay
Image | Manufacturer Part Number | Description | Coil Voltage | Contact Form | Contact Rating (Current) | Available Quantity | Price | View Details | |
---|---|---|---|---|---|---|---|---|---|
![]() | ![]() | G9KB-1A DC12 | RELAY GEN PURPOSE SPST 50A 12V | 12VDC | SPST-NO (1 Form A) | 50 A | 76 - Immediate | $354.80 | View Details |
![]() | ![]() | G9KB-1A DC24 | RELAY GEN PURPOSE SPST 50A 24V | 24VDC | SPST-NO (1 Form A) | 50 A | 12 - Immediate | $320.72 | View Details |
![]() | ![]() | G9KB-1A-E DC24 | RELAY GEN PURPOSE SPST 100A 24V | 24VDC | SPST-NO (1 Form A) | 100 A | 44 - Immediate | $446.01 | View Details |
![]() | ![]() | G9KB-1A-E DC12 | RELAY GEN PURPOSE SPST 100A 12V | 12VDC | SPST-NO (1 Form A) | 100 A | 100 - Immediate 72 - Factory Stock | $426.25 | View Details |