G5NB Sealed PCB Relays Omron G5NB Sealed PCB Relays have a slim and compact design with a 3A/5A switching capability. These relays feature a 10kV impulse withstand voltage, 3A maximum switching current, and highly efficient magnetic circuit for high sensitivity. Omron G5NB Relays are available in semi-sealed and sealed types and consume only 200mW power. Typical applications include water heaters, air conditioners, refrigerators, home appliances, and small electric appliances.