AFS-222-112

Pressure Switch, Differential, Dual Radial Barbed, 0.05 Inch-H2O, 12 Inch-H2O, SPDT, 277 VAC

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: ACI
Product type: Pressure Switches
SVHC: No SVHC (04-Feb-2026)
Deadband Max: -
Deadband Min: -
Pressure Type: Differential
Product Range: AFS Series
Pressure Port Size: 1/4"
Pressure Port Type: Dual Radial Barbed
Contact Configuration: SPDT
Switching Current Max: 15A
Switching Voltage Max: 277VAC
Operating Pressure Max: 12Inch-H2O
Operating Pressure Min: 0.05Inch-H2O
Operating Temperature Max: 82°C
Operating Temperature Min: -40°C
Transducer Connection / Termination: Screw

Delivery and price
Units per pack	50
Price	50.36 €
Current stock	10+
Lead time	29 days

Datasheet

_**Automation Components, Inc.**_ 

PRESSURE **|** DIFFERENTIAL PRESSURE SWITCHES **|** AFS 

## AFS 

## **Differential Pressure Switches (Metal)** 

The AFS Series Differential Pressure Switches are general purpose proving switches designed for both HVAC and Energy Management applications. These pressure switches can be used to sense positive, negative, or differential air pressures when used in conjunction with an A/SPT or A/VPT Series sampling tube. The plated housing contains a diaphragm, calibration spring and single snap-acting contact closure with either a manual or automatic reset switch depending on the model. The enclosure cover contains a ½” conduit knockout and guards against accidental contact with the live switch terminal screws as well as the set point adjusting screw. 

**Applications:** Monitoring Filter Blockage, Proof of Flow, Prove Excessive or Insufficient Flow, Alarms and Control 

**The AFS Series is covered by ACI’s Two (2) Year Limited Warranty. The warranty can be found in the front of ACI’s Sensors & Transmitters catalog, as well as on ACI’s website, workaci.com.** 

## PRODUCT SPECIFICATIONS 

|**Input Pressure Range:**|**AFS-222:**0.05 +/- 0.02” to 12” wc| **AFS-262:**0.05 +/- 0.02” to 2.0” wc| **AFS-460:**0.40 +/- 0.06” to 12.0“ wc|
|---|---|
|**Set Point Range:**|**AFS-222:**0.05 +/- 0.02” to 12.0” wc| **AFS-262:**0.07” to 2.0” wc| **AFS-460:**0.40 +/- 0.06” to 12“ wc|
|**Field Adjustable “Operate” Range:**|**AFS-222:**0.07 to 12.0” wc| **AFS-262:**0.07” to 2” wc| **AFS-460:**0.46” to 12“ wc|
|**Field Adjustable “Release” Range:**|**AFS-222:**0.04 to 11.2” wc| **AFS-262:**0.04” to 1.9” wc| **AFS-460:**0.46”w.c. to 11.2” w.c.|
|**Approximate Switching Differential:**|Progressive, increasingfrom 0.02 +/- 0.01” wc @ minimum setpoint to 0.8” wc @ maximum setpoint|
||**AFS-222/AFS262:**300 VA pilot duty @ 115 to 277 VAC, 60 Hz; 15A non-inductive to 277 VAC, 60 Hz|
|**Contact (Load) Rating:**|**AFS-460:**15A @ 125, 250, or 277 VAC / 1/2A @ 125 VDC, 1/4A @ 250 VDC / ¼ hp @ 125 VAC, ½ hp @ 250 VDC|
||**AFS-460-137:**8A @ 250 VAC|
|**Contact Arragement:**|**AFS-222/AFS-262:**SPDT w/ Automatic Reset  |**AFS-460:**SPST-NC w/ Manual Reset |**AFS-460-137:**DPDP<br>w/ Manual Reset|
|**Measured Media:**|**AFS-222/AFS-262:**Air or combustion by-products that will not degrade silicone| **AFS-460:**Air|
|**Maximum Pressure:**|0.5 PSI (0.03 Bar)|
|**Life Expectancy:**|**AFS-222/AFS-262:**100,000 cycles minimum @ 1/2 psi (0.03 Bar) max pressure / cycle & max load<br>**AFS-460:**6,000 cycles minimum @ 1/2psi (0.03 Bar) maxpressure / cycle & max load|
|**Operating Temperature Range:**|-40 to 180ºF (-40 to 82ºC)|
|**Operating Humidity Range:**|10 to 95% RH, non-condensing|
|**Mounting Direction:**|Anyverticalplane|
|**Enclosure Material:**|Galvanized Steel|
|**Sample Line Connections:**|Accepts ¼” OD rigid or semi-rigid metallic tubing using integral compression fitting, ferrule and nut |<br>**“-112 Option”:**Includes two barbed fittings that accepts ¼” flexibleplastic tubing|
|**Electrical Connections:**|Screw type terminal with cupwashers|
|**Conduit Opening:**|Accepts ½” Conduit (7/8” (22.3 mm) opening)|
|**Dimensions (H x W x D):**|6.25” x 4.46” x 3.18” (158.8 mm x 113.3 mm x 80.8 mm)|
|**Weight:**|1.2 lbs (0.544 kg)|
|**Agency Approvals:**|UL, CUL, FM, CSA, CE, ISO 9001: 2008|



PRESSURE  |  ## 

_**Call: 1-888-967-5224  |   Web: www.workaci.com**_ 

_**Automation Components, Inc.**_ 

PRESSURE **|** DIFFERENTIAL PRESSURE SWITCHES **|** AFS 

## DIMENSIONAL DRAWING ~~ee~~ 

**==> picture [467 x 327] intentionally omitted <==**

**----- Start of picture text -----**<br>
AFS [222] 2x Ø.19” High Pressure Inlet<br>1.63” (4.83mm)<br>(41.28mm) 1.38”(35.05mm) Low Pressure Inlet<br>3.25” 3.88” 0.71”(18.03mm)<br>(82.55mm) (98.55mm) 3.25”<br>(82.55mm)<br>2.81” (71.37mm) 1.94”(49.28mm) .44” (11.18mm) 0.78”(19.69mm)<br>6.13” (155.70mm)<br>AFS [262] High Pressure Inlet<br>1.63” 2x Ø.19” (4.83mm)<br>(41.28mm) 1.38”(35.05mm) Low Pressure Inlet<br>3.25”(82.55mm) 3.88”(98.55mm) 3.25” 0.71”) (18.03mm<br>(82.55mm)<br>2.81”(71.37mm) 1.94”(49.28mm) .44”(11.18mm) 0.78” (19.69mm)<br>6.13” (155.70mm)<br>aad ce<br>AFS [460] High Pressure Inlet<br>1.63” 2x Ø.19” (4.83mm)  1.38”(35.05mm)<br>(41.28mm)<br>Low Pressure Inlet<br>3.25”(82.55mm) 3.88”(98.55mm) 3.56”(90.42mm) 0.71” (18.03mm)<br>Reset Button<br>2.81” 1.94” .44” (11.18mm) 0.91” (23.11mm)<br>(71.37mm) Tt (49.28mm) —<br>6.13” (155.70mm)<br>Front View Side View Top View<br>GG<br>**----- End of picture text -----**<br>


## STANDARD ORDERING 

|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|STANDARD ORDERING<br>**-OR-**<br>**Model # Example:**<br>**101788**<br>**AFS-222**|
|---|---|---|---|---|---|---|
|**Model #**|**Item #**|**Pressure Range**|**Contact Style**|**Reset Style**|**Compression Fitting**|**Barbed Fitting**|
|**AFS-222**<br>~~5~~<br>~~——~~|101788<br>~~5~~<br>~~——~~|0.05 to 12.0” wc|SPDT|Auto|**・**||
|**AFS-222-112**<br>~~5~~<br>~~——~~|108816<br>~~5~~<br>~~——~~|0.05 to 12.0” wc|SPDT|Auto||**・**|
|**AFS-262**<br>~~5~~<br>~~——~~|101789<br>~~5~~<br>~~——~~|0.05 to 2.0” wc|SPDT|Auto|**・**||
|**AFS-262-112**<br>~~——~~|118041<br>~~——~~|0.05 to 2.0” wc|SPDT|Auto||**・**|
|**AFS-460**<br>~~——~~|101791<br>~~——~~|0.40 to 12.0” wc|SPST-N/C|Manual|**・**||
|**AFS-460-112**|129657|0.40 to 12.0” wc|SPST-N/C|Manual||**・**|
|**AFS-460-137**|105782|0.60 to 12.0” wc|DPDT|Manual|**・**||



PRESSURE  |  ## 

_**Call: 1-888-967-5224  |   Web: www.workaci.com**_

Updated at June 9, 2026

About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.

Learn more →

Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.

Request a quote →

Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.

BOM Analysis service →