This continuous duty solenoid switch features a weather resistant coating that helps protect from moisture and debris, and ensure long life of the switch.
The continuous duty switch is ideal for cooling fan applications that are typically in harsh or wet environments. If using a factory (oem) style cooling fan this will help keep your 40amp relays alive.
Solenoids are a current carrying coil of wire, wrapped around an iron core that when energized, creates a magnetic field which produces a high current and force.
This makes solenoids very advantageous because it allows for a low input while generating a larger output, as in the case of a starter solenoid
