The Derale 190 degree F Fan Switch Relay Kit is a single stage electric fan control that switches a cooling fan on at 190 degrees F and off at 175 degrees F. The kit uses a 1/8 inch NPT temperature switch with a 1/8 inch to 3/8 inch NPT adapter bushing so it fits common ports, and it includes a relay wire harness with A/C override for an easy, complete installation. The included 40/60 amp relay harness carries the fan load off the switch, and the kit is rated to a maximum 25 amp fan draw.
Specifications:
- Type: Single stage fan switch relay kit
- Turn-on temperature: 190 degrees F
- Turn-off temperature: 175 degrees F (preset)
- Switch thread: 1/8" NPT, with 1/8" x 3/8" NPT adapter bushing
- Relay harness: 40/60 amp, with A/C override
- Maximum fan capacity: 25 amps
- Includes: Temperature switch, adapter bushing, relay wire harness
- Part number: 16721
FAQ
What does the Derale 16721 kit do?
It switches an electric cooling fan on at 190 degrees F and off at 175 degrees F using a temperature switch and an included relay harness.
What NPT sizes does it fit?
The switch is 1/8 inch NPT and a 1/8 inch to 3/8 inch NPT bushing is included to fit either port.
Does it include a relay?
Yes. It comes with a 40/60 amp relay wire harness that includes an A/C override.
How much fan current can it handle?
The kit is rated to a maximum 25 amp fan load, carried through the relay harness.
