outline dimensions:23.0*15.5*25.4 contact form: 1A 1C max.contact transfer current: 30A max.switchng voltage:27VDC coil voltage:12-24VDC ambient temperature:-40~85 contact rating 1A: 30A 13VDC 20A 27VDC 1C:NO/NC 20A/10A 13VDC 20A/10A 27VDC brand:Meishuo or OEM Packing:400pcs/cnt