Omron G9KB PCB Power Relays
OMRON G9KB Series PCB Power Relays with Bidirectional Switching are designed for switching high DC loads, supporting up to 600Vdc and 50A in the standard version and up to 800Vdc and 100A in the high-capacity version. These relays use a single-pole, normally open contact structure with a minimum contact gap of 3.6mm and offer low initial contact resistance. The G9KB relays are rated for operation in environments up to +85°C and require a coil holding voltage between 45% and 60% of the rated voltage. Typical applications include energy storage systems, EV chargers, and DC household appliances.
Features
- Certified to UL 60947-4-1 and EN 61810-10 standards for use in energy storage systems
- Coil holding voltage range from 45% to 60% of the rated voltage
- Contacts are made of cadmium-free Ag alloy
- Flammability rating of UL94 V-0
- Operates reliably in environments up to +85°C
Applications
- DC household appliances
- Energy industry
- Energy storage system
- V2X, V2B, and V2H
Technical Specifications
| Parameters | Values |
|---|---|
| Ambient Operating Temperature Range | -40°C to 85°C (with no icing or condensation) |
| Low Initial Contact Resistance | ≤5mΩ |
| Maximum Switching Voltage | 600Vdc (Standard) 800Vdc (High-capacity) |
| Minimum Contact Gap | 3.6mm |
| Minimum Insulation Resistance | 1000MΩ |
Video
This TTI Specs Video for OMRON G9KB PCB Power Relays explains that they are Bidirectional Switching replays with a minimum contact gap of 3.6mm. These power relays are designed to handle continuous carrying current and provide highly effective non-polarized arc-controlled switching to maximize performance.
See video transcript below
Video Transcript
As fun as is it to try and connect two high-voltage cables together with a seriously undersized transistor, product safety laws require that engineered products don’t go boom every time they turn on. To facilitate in such situations, the G9KB relays are at your service with their maximum output switching of 600Vdc at 50A and maximum initial contact resistance of 5mΩ. Additionally, the G9KB range of relays also has a minimum contact gap of 3.6mm to provide excellent insulation during its off state, and the relay comes in both 12V and 24V coil options which makes them compatible with most industrial systems. Finally, these relays are happy in both cold and hot environments thanks to their operating temperature range of -40°C to +85°C, and they are UL 60947-4-1 and EN 61810-10-certified.
