50 amp Sealed Automotive Relay - Five terminal fully sealed automotive relay is capable of switching up to 50 amps. Normally closed terminals can switch 30 amps. Fully sealed design is perfect for for exposure to the elements. The great solution for switching high amperage loads such as many of the equipment existing on vehicles today. Perfect for marine use also. 12 volt coil. Dimensions are 1" x 1" x 1", (with 5) 1/4" terminals.