Standard rating: 50A @ 125VAC / 250VAC. Temperature range: 40J - 140J Operating tolerance: 5J. Dielectric strength: 1500 vac / 1 minute. Resistance to tracking: 175VAC Type of connectors: screw terminal. Contacts endurance: B-2003m: 300 cycles. B-2003a: 1, 000 cycles.