Series-DFS2

Low Limit Freeze Protection Switch – Adjustable Set Point to 1 °C

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Models In Stock

Vapor-filled copper capillary sensing element
Joint spring protector at capillary-bellow connection
Set point safety-lock protection and simple adjustment
Easy installation and wiring
Automatic and manual reset

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Series-DFS2

From ^C$ 444.97

Models In Stock

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4 Variations available

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Data Sheet

Product Overview

Applications HVAC, Oil
Capillary Overload Temperature 392 °F
Capillary Temperature Note 392°F (200°C), maximum 60 minutes
Deadband 1.8 °F
Electrical Connection M20 Female Conduit with Strain Releif and Screw Terminal block
Enclosure Ratings IP40, NEMA Type 1
Insertion Length 0 in
Low Level Setpoint Factory Set: 39°F (4°C), and Safety Lock Secured; Adjustment via Screwdriver Slot.
Materials Galvanized Steel, ABS, Copper
Operating Temperature, Max 54 °F
Operating Temperature, Min 14 °F
Process Temperature, Max 0 °F
Process Temperature, Min 0 °F
Relative Humidity 0 to 95 %, Non-Condensing
Sensing Element Vapor-Filled Capillary
Series ID Series-DFS2
Storage Temperature, Max 158 °F
Storage Temperature, Min 14 °F
Switch Rating 15 A @ 24 to 250 Vac
Weight 1.6 lb
Wire Gauge 14 AWG

The Series DFS2 Low Limit Freeze Protection Switch protects cooling coils in air handler systems by preventing frost build up. The thermostat and its capillary sensing element provide an antifreeze function by sensing the lowest temperature along any one foot section of capillary. The DPDT manual or automatic reset relays signal the building management system as well as cut off the fan. The Series DFS2 will detect temperature drops below the fixed safety value (set point) which can be set as low as 34°F (1°C) utilizing the visual set point indicator and set point screw.