Mr. Gasket wiring harness & relay kits protect your electrical system and provide reliable and consistent power for your high performance electric fan. These kits include high quality heavy gauge wiring, 30 amp relay, 30 amp circuit breaker, pre-wired relay connector, crimp terminals & hardware. Each kit comes with easy to follow instructions that are written specifically for that application.Features:30 AMP RelayWiring Harness is 100" Long - 10-18 Ga. Wire30 Amp Circuit Breaker3/8" NPT Temperature Sensor w/ 1/2" NPT Reducer BushingCrimp Terminals & HardwareSpecial Connector Allows Additional Relays to be Nested Together for Clean InstallationEasy to Follow Instructions Simplify Wiring Your Electric FanTemperature Switch Turns on Fan at 195 Degrees and Off at 85 Degrees