The Pollak 52-307-01 Starter Solenoid is a single-pole, single-throw insulated starter solenoid for 12-volt applications. 100-amp capacity. Normally open contacts. Continuous duty. Includes hardware. On-off circuitry. UL listed.• Single-pole, single-throw• UL listed• Insulated• Includes hardware• Capacity: 100 amps at 12 volts• Continuous duty• On-off circuitry Normally open contacts Continuous duty Includes hardware