The Derale 16789 is a high amperage adjustable fan controller for dual electric fans. A dial sets the temperature at which the fans turn on and off, and the 3/8 inch NPT thread-in probe installs into a coolant passage or housing to read temperature directly. The high amperage rating supports two high output fans.
Specifications:
- Type: Adjustable dual electric fan controller
- Adjustment: Dial-set on/off temperature
- Probe: 3/8" NPT thread-in probe
- Capacity: High amperage
- Fans: Dual
- Part number: 16789
FAQ
What does the Derale 16789 do?
It switches dual electric fans on and off at a temperature you set with the dial.
How does it read temperature?
A 3/8" NPT thread-in probe installs into a coolant passage or housing.
Is it adjustable?
Yes, the on and off temperature is dial-adjustable.
How many fans does it run?
It is built to control two fans.

