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CLEVELAND CONTROLS AFS-271 Adjustable Set-Point Air Pressure Switch - Adjustable Set-Point Air Pressure Switches
CLEVELAND CONTROLSAdjustable Set-Point Air Pressure Switches

CLEVELAND CONTROLS AFS-271 Adjustable Set-Point Air Pressure Switch

The CLEVELAND CONTROLS AFS-271 is an adjustable set-point air pressure switch with auto reset, SPDT switching, and a 277V AC rating. It operates within a 0.05 in wc to 2 in wc range and is open mounted.

SKU 3G-OTH-68606

Also listed as: AFS271 · AFS 271

Brand
CLEVELAND CONTROLS
Item
AFS-271 Adjustable Set-Point Air Pressure Switch
Part Number
AFS-271
Category
Adjustable Set-Point Air Pressure Switches
Available to Order
Also known as:AFS-271CLEVELAND CONTROLS
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Technical Specifications

CLEVELAND CONTROLS
Manufacturer Part Number
AFS-271
Type
Auto Reset, 0.05 in wc to 2 in wc, Open Mounted, SPDT
AC
277V
Switch Voltage
277V AC

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CLEVELAND CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLEVELAND CONTROLS AFS-271 is an adjustable set-point air pressure switch with auto reset, SPDT switching, and a 277V AC rating. It operates within a 0.05 in wc to 2 in wc range and is open mounted.

Frequently Asked Questions

What is the CLEVELAND CONTROLS AFS-271 air pressure switch used for?

The CLEVELAND CONTROLS AFS-271 is an adjustable set-point air pressure switch used to sense low air pressure differentials in HVAC, combustion, and industrial ventilation systems. It provides SPDT switching at 277V AC for alarm, interlock, or control functions.

What are the specifications of the CLEVELAND CONTROLS AFS-271?

The AFS-271 is an auto-reset SPDT switch rated 277V AC. Its adjustable set-point range is 0.05 in wc to 2 in wc. It is open mounted and manufactured by CLEVELAND CONTROLS. 3G Electric supplies this model worldwide.

Where to buy the CLEVELAND CONTROLS AFS-271 worldwide?

3G Electric supplies the CLEVELAND CONTROLS AFS-271 adjustable air pressure switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

How to install the CLEVELAND CONTROLS AFS-271 air pressure switch?

Mount the AFS-271 in a clean, dry location with the pressure port connected to the sensed air duct. Wire the SPDT contacts per your control circuit (277V AC max). Adjust the set-point screw within the 0.05–2 in wc range. Test for proper switching.

Used in

Common applications for CLEVELAND CONTROLS
HVAC duct airflow monitoring — Cleveland Controls static pressure probe with 1/2 in smooth connection and 4 in insertion length (MPN 21117) for measuring static pressure in supply or return ducts.
Filter differential pressure monitoring — Cleveland Controls static pressure probe with 1 in barb connection and 3 1/2 in insertion length (MPN 21398-112) used to sense pressure drop across filters.
Clean room pressure control — Cleveland Controls static pressure probe with 1/2 in barb connection and 8 in insertion length (MPN 21119-112) for low-pressure measurement in controlled environments.
Combustion air proving — Cleveland Controls static pressure probe with 1 in smooth connection and 1 1/2 in insertion length (MPN 21397) to verify airflow in burner systems.
Ventilation system balancing — Cleveland Controls static pressure probe with 1/2 in smooth connection and 6 in insertion length (MPN 21118) for measuring pressure in large ducts.
Industrial exhaust monitoring — Cleveland Controls static pressure probe with 1 in barb connection and 2 in insertion length (MPN 21116-112) for pressure sensing in exhaust stacks.
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CLEVELAND CONTROLS Products

3G Electric supplies CLEVELAND CONTROLS adjustable set-point air pressure switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Auto reset adjustable set-point air pressure switch with a range of 0.05 in wc to 12 in wc. Features SPDT contacts rated at 277V AC, housed in a conduit box with barb connection. Used for monitoring air pressure in HVAC systems, such as duct static pressure, filter status, and fan proving
CLEVELAND CONTROLS
Auto reset adjustable set-point air pressure switch with a range of 0.05 in wc to 12 in wc. Features SPDT contacts rated at 277V AC, housed in a conduit box with barb connection. Used for monitoring air pressure in HVAC systems, such as duct static pressure, filter status, and fan proving

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