heavy duty 12V SPST relays 30A for many applications Heavy-duty impact molded relay socket with wires Package includes: 5 relays + 5 relay socket wires (5wire) Characteristic Data: nitial 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) Colour:Black Material:ABS Package Contents: 5x relays 5x relay socket wires (5wire) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.