Omron G9KA-1A1B-E DC12 BY OMZ High Power DC Contactor Relay, 12 VDC Coil, 300 A, 1 Form A

With a rated load current of 300 A and a maximum switching voltage of 400 VDC, the Omron G9KA-1A1B-E DC12 BY OMZ is engineered for high-power DC switching applications. This relay features a 1 Form A (SPST-NO) contact configuration and a 12 VDC coil, making it suitable for demanding industrial environments.

Overview

The G9KA-1A1B-E is a panel-mount high-power DC contactor relay from Omron. It offers robust performance with silver tin oxide (AgSnO2) contacts, ensuring reliable switching under high current loads. The relay operates within a temperature range of -40 to +85 °C and provides an electrical life of 10,000 operations at rated load.

What stands out

• High current capacity: 300 A rated load current
• High voltage switching: up to 400 VDC
• Durable contacts: AgSnO2 material for long life
• Wide operating temperature: -40 to +85 °C
• Panel mount design with M5 power terminals and M3 coil terminals

Technical details

• Coil voltage: 12 VDC
• Coil resistance: 10.2 Ω ±10%
• Operate time: max. 30 ms
• Release time: max. 10 ms
• Dielectric strength (coil-contact): 2,500 VAC (50/60 Hz for 1 min)
• Insulation resistance: 100 MΩ min. (at 500 VDC)
• Mechanical life: 100,000 operations
• Enclosure rating: IP67 (main contacts), IP50 (coil terminals)

Our verdict

The Omron G9KA-1A1B-E DC12 BY OMZ is a reliable choice for high-power DC switching, offering high current capacity, robust construction, and wide temperature tolerance for demanding applications.