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After 3 minutes
the switch opens the electrical circuit to shut down the heating element or burner
making it fully compatible with modern HFC and HCFC refrigerants
eliminating the risks associated with generic "one-size-fits-all" components
Cleveland Controls DFS-448-153 Switch After 3 minutesThe Cleveland Controls DFS 448 153 is a purpose built air flow switch designed for critical monitoring in industrial HVAC systems, air handling units, and duct heaters. This fixed set point air pressure switch is factory calibrated to actuate on a pressure rise of 0. 05" 0. 02" w. c., providing high accuracy sensing for equipment safety and cycle control. Featuring a SPDT switch configuration (Single Pole Double Throw), it facilitates versatile wiring
