Check the listing for details. 12 Volt 40 AMP SPDT Automotive Marine Relay with Wire Harness Socket (8 pack). Condition: New. Listed at 29.75 USD. 12 Volt 40 AMP SPDT Automotive Marine Relay with Wire Harness Socket Brand new heavy duty 12V SPST relays40A for many applications Heavy-duty impact molded relay socket with wiresPackage includes: 8 relays + 8 relay socket wires (5wire) Characteristic Data: • Initial contact resistance (at 6VDC 1A): 50mΩ Max. • Operate time (at nominal volt.): 10 msec. Max. • Release time (at nominal volt.): 5 msec Max. • Initial insulation resistance: 100MΩ Min. (DC500V) • Initial dielectric strength: - Between open contacts: AC500V, 50/60 Hz 1Min. - Between coil and contact: AC500V, 50/60 Hz 1Min. • Vibration resistance: - Functional: 10 ~ 55Hz at double amplitude of 1.5 mm - Destructive: 10 ~ 55Hz at double amplitude of 1.5 mm • Shock resistance: - Functional: 20G Min. - Destructive: 100G Min. • Endurance (operations): - Mechanical (at 7,200 ops./h): 10,000,000 - Electrical (at 600 ops./h): 100,000 • Ambient Temperature: -40°C ~ +125°C (no condensation) Package includes: 8pcs 40a relays with 8pcs Relay Harness (5wire)