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Duct Pressure Switches

45 results found that include 45 products

Install a duct pressure switch from Grainger to help your HVAC system do its job. An air switch senses positive, negative or differential air pressure and actuates an internal switch. Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners, duct heaters, humidifiers, exhaust fans and duct booster fans. Rely on Grainger for a wide range of duct pressure switch options.Close

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Results per page:  16 | 32 | 48
Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM92
  • Mfr. Model # AFS-222
  • General Purpose Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.05 to 12.0 Inches, Sample...More

Differential Air Pressure Switch
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G365
  • Mfr. Model # P32AF-1C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .018 To .120, SPDT Switch Type,...More

Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 4XB70
  • Mfr. Model # RFS-4150
  • Air Sensing Switch, General Purpose, SPDT, Pressure Setting Range 0.12-5.0 In WC, Integral Barbed Sample Line...More

Air Sensing Switch,Fixed
Air Sensing Switch,Fixed
  • CLEVELAND CONTROLS
  • Item # 6XPX9
  • Mfr. Model # DFS-221-112-395
  • Air Sensing Switch, HVAC, SPDT Switch Type, Pressure Setting Range (In. WC) 0.05, Electrical Rating 300 VA...More

Switch,Air Sensing
Switch,Air Sensing
  • COLUMBUS ELECTRIC
  • Item # 2E462
  • Mfr. Model # GRH3AD
  • Multi Purpose Air Sensing Switch, Switch Action SPDT, Differential 0.02 to 0.8 Inches WC, Mounting Location...More

Switch,Fan Proving
Switch,Fan Proving
  • TJERNLUND
  • Item # 4C725
  • Mfr. Model # PS1505
  • Air Sensing Switch, Flue Exhaust Proving, Differential (In. WC) -, - Switch Type, Pressure Setting Range (In....More

Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM96
  • Mfr. Model # RSS-495-011
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.20 to 1.0 Inches, Sample Line Connector...More

Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM94
  • Mfr. Model # AFS-460
  • Air Sensing Switch, Switch Action SPST, Pressure Setting Range WC 0.4 to 12.0 Inches, Sample Line Connector...More

Switch,Dryer Boosting
Switch,Dryer Boosting
Pressure Sensing Switch,.05-12
Pressure Sensing Switch,.05-12
  • ROBERTSHAW
  • Item # 6XJU2
  • Mfr. Model # 2374-499
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Pressure Switch,Differential,0.2to 2InWC
Pressure Switch,Differential,0.2to 2InWC
  • DWYER INSTRUMENTS
  • Item # 4FTP1
  • Mfr. Model # ADPS-03-2-N
  • Pressure Switch, Differential, 0.2 to 2.0 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip...More

Airflow Switch,Auto Reset,SPDT
Airflow Switch,Auto Reset,SPDT
  • SIEMENS
  • Item # 2KGR4
  • Mfr. Model # 141-0574
  • Airflow Switch, Auto Reset, Differential 0.06 To 0.6 WC, SPDT Switch Type, Pressure Setting Range 0.05 To 1.0...More

Switch,Duct Pressure
Switch,Duct Pressure
Differential Air Pressure Switch
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G363
  • Mfr. Model # P32AC-2C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .045 To .195, SPDT Switch Type,...More

Pressure Switch,Differential,0.12to1.6In
Pressure Switch,Differential,0.12to1.6In
  • DWYER INSTRUMENTS
  • Item # 4FTN9
  • Mfr. Model # ADPS-04-2-N
  • Pressure Switch, Differential, 0.12 to 1.6 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip...More

Air Sensing Switch,Adjustable
Air Sensing Switch,Adjustable
  • CLEVELAND CONTROLS
  • Item # 6XPX7
  • Mfr. Model # NS2-0000-05
  • Air Sensing Switch, HVAC OEM, Differential (In. WC) 0.03 to 0.09, SPDT Switch Type, Pressure Setting Range...More

Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM93
  • Mfr. Model # AFS-405
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 0.05 to 12.0 Inches, Sample Line Connector...More

Pressure Switch,Differential,0.8to 4InWC
Pressure Switch,Differential,0.8to 4InWC
  • DWYER INSTRUMENTS
  • Item # 4FTP2
  • Mfr. Model # ADPS-05-2-N
  • Pressure Switch, Differential, 0.8 to 4.0 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip...More

Pressure Switch,Differential,2to 10In WC
Pressure Switch,Differential,2to 10In WC
  • DWYER INSTRUMENTS
  • Item # 4FTP3
  • Mfr. Model # ADPS-06-2-N
  • Pressure Switch, Differential, 2 to 10 In WC Differential, Burst Pressure 40 In WC, Port Type 1/4 In Slip On...More

Pressure Switch,Differential, SPDT
Pressure Switch,Differential, SPDT
Pressure Sensing Switch,Adjustable
Pressure Sensing Switch,Adjustable
  • TJERNLUND
  • Item # 14U189
  • Mfr. Model # PS2501
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) .02, SPDT Switch Type, Pressure Setting...More

Air Sensing Switch,Auto Reset,SPDT
Air Sensing Switch,Auto Reset,SPDT
  • POWERS CONTROLS
  • Item # 40PN35
  • Mfr. Model # 141-0518
  • Air Sensing Switch, Auto Reset, Differential (In. WC) 0.6 to 1.5, SPDT Switch Type, Pressure Setting Range...More

Pressure Switch,Manual Reset
Pressure Switch,Manual Reset
  • ROBERTSHAW
  • Item # 6XJU7
  • Mfr. Model # 2374-504
  • Pressure Sensing Switch, Manual Reset, Differential (In. WC) 0.06 to 0.8, Switch Type SPST NC, Pressure...More

Differential Air Pressure Switch
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G350
  • Mfr. Model # P233A-4-PAC
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) 0.1, SPDT Switch Type, Pressure...More

Pressure Switch,Gold Contacts
Pressure Switch,Gold Contacts
  • ROBERTSHAW
  • Item # 6XJU6
  • Mfr. Model # 2374-503
  • Pressure Sensing Switch, Gold Contacts, Differential (In. WC) 0.02 to 0.8, Switch Type SPDT, Pressure...More

Differential Air Pressure Switch
Differential Air Pressure Switch
  • JOHNSON CONTROLS
  • Item # 40G366
  • Mfr. Model # P32AF-2C
  • Differential Air Pressure Switch, HVAC/General Purpose, Differential (In. WC) .009 To .075, SPDT Switch Type,...More

Pressure Sensing Switch,General Purpose
Pressure Sensing Switch,General Purpose
  • FANTECH
  • Item # 15W826
  • Mfr. Model # FPS 10
  • Pressure Sensing Switch, General Purpose, Differential (In. WC) .005 - 1.0, SPDT Switch Type, Pressure...More

Pressure Sensing Switch,.25-1.0
Pressure Sensing Switch,.25-1.0
  • ROBERTSHAW
  • Item # 6XJU0
  • Mfr. Model # 2374-495
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) .10, Switch Type SPDT, Pressure Setting...More

Switch,Air Sensing
Switch,Air Sensing
  • CLEVELAND CONTROLS
  • Item # 3ZM97
  • Mfr. Model # RSS-498-015
  • Air Sensing Switch, Switch Action SPDT, Pressure Setting Range WC 1.0 to 4.0 Inches, Sample Line Connector...More

Dif Pressure Switch,Adjustable
Dif Pressure Switch,Adjustable
  • DWYER INSTRUMENTS
  • Item # 24Z008
  • Mfr. Model # ADPS-08-2-N
  • Differential Pressure Switch, Air, Pressure Setting Range (In. WC) 0.08 to 1.2, Sample Line Connector Barb...More

Pressure Sensing Switch,1-4 WC
Pressure Sensing Switch,1-4 WC
  • ROBERTSHAW
  • Item # 6XJU1
  • Mfr. Model # 2374-498
  • Pressure Sensing Switch, HVAC/General Purpose, Differential (In. WC) .10, Switch Type SPDT, Pressure Setting...More

Air Sensing Switch,Manual Reset,SPST
Air Sensing Switch,Manual Reset,SPST
  • SIEMENS
  • Item # 40PN37
  • Mfr. Model # 141-0575
  • Air Sensing Switch, Manual Reset, Differential (In. WC) 0.06 to 0.6, SPST Switch Type, Pressure Setting Range...More

Results per page:  16 | 32 | 48
Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More