F27 Time delay flow switch
- Directly control pumps up to 3.75kW or 5HP
- Dry run protection for bore pumps
- Dry run protection for pressure systems
- Inbuilt start-up timer
- Automatic run-on timer
- No metal parts in contact with liquids
- 240V, 24VAC and DC models available
- Indicator LED’s for all functions
- Reliable proven construction
- Weatherproof construction
- Suits pipes 25mm and above
- 18 Bar (260 PSI) Pressure rating
- Stainless steel models available
Description
The F27 time delay flow switches are paddle flow switches with built-in digital timers that override the off state
of the flow switch and allow a pump to start in spite of an initial lack of flow. They also have adjustable run-on
timers that let the pump ignore minor flow interruptions while still being fully protected against running dry.
More Information
Wiring Diagrams
- F27 Pressure system layout (PDF)
- F27 Basic pressure system circuit (PDF)
- F27 Switched pressure system layout (PDF)
- F25 Pressure system circiut (PDF)
- F27TD/F30TD Terminal Markings
AutoCAD Drawing
Paddle trimming calculator