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    8 Products

    Differential Pressure Switches for Air

    Image of Product. Front orientation. Differential Pressure Switches. Differential Pressure Switches for Air, Connects to Pipe.

    Connects to Pipe

    Often used with ovens, dryers, and HVAC systems, these switches detect small differences in air pressure to indicate a filter is clogged or help you maintain a certain air pressure. When the differential pressure reaches your setpoint, these switches can turn equipment on and off, activate automated controls, or signal alarms. They are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on or from on to off. All meet at least one safety standard.
    When measuring pressure in ductwork, pair them with a static pressure probe.
    Pressure Set
    Point, in. H₂O
    Approx. Difference Between Set
    Point and Reset Point, in. H₂O
    Max. Input
    Pressure
    Accuracy
    Max. Switching Current @ Voltage
    Process Temp.
    Range, ° F
    Connection
    Material
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    With
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    Each
    Screw-Terminal Wire Connection
     
    1/8 NPT Female Pipe Connection
    0.07 to 0.150.0445 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K54000000
    0.15 to 0.550.145 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K5600000
    0.4 to 1.60.1645 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K6100000
    1.4 to 5.50.345 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K6200000
    3 to 11.750.445 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K6300000
    4 to 200.545 in. H₂O±3%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-30 to 180Aluminum
    		AirCE Marked, FM Approved, UL Recognized Component
    		40915K6500000
    5 to 440.8310 psi±2%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-20 to 180SteelAirCE Marked, CSA Certified, FM Approved, UL Recognized Component
    		40915K71000000
    9 to 852.1510 psi±2%15 amp @ 120V AC
    15 amp @ 240V AC
    15 amp @ 480V AC    		-20 to 180SteelAirCE Marked, CSA Certified, FM Approved, UL Recognized Component
    		40915K72000000
     
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