This isinexpensive protection foran electric fan and a vehicle's wire harness. Provides constant voltage, protects from voltage and amperage spikes andprevents the fan from back feeding voltagethrough the vehicle's wire harness. An absolute necessity if adding a dash mounted manual on/off switch to your electric fan circuit.
This kit includes:
- SPST 40 Amp relay
- 30 Amp circuit breaker
- Relay base with harness
- Crimp-on terminals
- Mounting hardware