outline dimensions:26.5*26.5*25.2 contact form:1A max.contact transfer current:70A max.switching voltage: 27VDC coil voltage:12-24VDC' ambient Temperature:-40~125 contact rating 1A: 30A/13VDC 20A/27VDC 1C:NO/NC 20A/10A 13VDC 20A/10A 27VDC brand:Meishuo or OEM