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CLEVELAND CONTROLS Air Sensing Switch: Adj, Auto Reset, 0.15 in wc to 5 in wc, Open Mounted - Adjustable Set-Point Air Pressure Switches
CLEVELAND CONTROLSAdjustable Set-Point Air Pressure Switches

CLEVELAND CONTROLS Air Sensing Switch: Adj, Auto Reset, 0.15 in wc to 5 in wc, Open Mounted

The CLEVELAND CONTROLS Air Sensing Switch: Adj (MPN RFS-4150) is an adjustable set-point air pressure switch with auto reset, covering a range of 0.15 in wc to 5 in wc. It features an open-mounted, SPDT, barb…

SKU 3G-OTH-68992

Also listed as: RFS4150 · RFS 4150

Brand
CLEVELAND CONTROLS
Item
Air Sensing Switch: Adj, Auto Reset, 0.15 in wc to 5 in wc, Open Mounted
Category
Adjustable Set-Point Air Pressure Switches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CLEVELAND CONTROLS
Manufacturer Part Number
RFS-4150
Type
Auto Reset, 0.15 in wc to 5 in wc, Open Mounted, SPDT, Barb

Technical Documents

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

Product Description

The CLEVELAND CONTROLS Air Sensing Switch: Adj (MPN RFS-4150) is an adjustable set-point air pressure switch with auto reset, covering a range of 0.15 in wc to 5 in wc. It features an open-mounted, SPDT, barb configuration for straightforward integration into industrial air-handling or combustion systems. 3G Electric sources this genuine OEM component across 14 industrial departments, with specialist expertise in combustion and controls to ensure the right part for your application.

Frequently Asked Questions

What is the CLEVELAND CONTROLS RFS-4150 air sensing switch used for?

The CLEVELAND CONTROLS RFS-4150 is an adjustable set-point air pressure switch used to detect positive or negative air pressure changes in HVAC ducts, fume hoods, and industrial ventilation systems. It provides SPDT switching for alarm or control signals when pressure reaches the set point between 0.15 in wc and 5 in wc.

What are the specifications of the CLEVELAND CONTROLS RFS-4150?

The RFS-4150 is an auto-reset, open-mounted air sensing switch with a barbed connection. Its adjustable set-point range is 0.15 in wc to 5 in wc. The switch is SPDT (single-pole double-throw). It is manufactured by CLEVELAND CONTROLS and carries the MPN RFS-4150.

Where to buy the CLEVELAND CONTROLS RFS-4150 worldwide?

3G Electric supplies the CLEVELAND CONTROLS RFS-4150 air sensing switch to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact 3G Electric for pricing and lead time on this adjustable set-point pressure switch.

How to install the CLEVELAND CONTROLS RFS-4150 air sensing switch?

Mount the RFS-4150 in a clean, dry location with the barbed port connected to the pressure source via flexible tubing. Ensure the switch is oriented per the manufacturer's guidelines to avoid false triggering. Adjust the set-point screw to the desired trip pressure between 0.15 in wc and 5 in wc. Wire the SPDT contacts according to your control circuit.

Used in

Common applications for CLEVELAND CONTROLS
HVAC duct static pressure monitoring — Cleveland Controls static pressure probes (e.g., model 21118) used in air handling units
Burner draft pressure control — Cleveland Controls adjustable set-point switches (e.g., AFS-A) for combustion air proving
Industrial process air flow measurement — Cleveland Controls total pressure probes (e.g., model 21123) in ventilation systems
Building automation system pressure sensing — Cleveland Controls switches (e.g., RFS-4150) for filter clog detection
Exhaust fan interlock — Cleveland Controls pressure switches (e.g., AFS-222-112) for proving fan operation

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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Cross-referenced by specification & description
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Air Pressure Switch: Adj, Auto Reset, 0.1 in wc to 10 in wc, Open Mounted, SPDT, Push-On, 277V AC (MPN NS2-0000-00)
Air Pressure Switch: Adj, Auto Reset, 0.05 in wc to 12 in wc, Open Mounted, SPDT, Push-On, 277V AC (MPN AFS-298)
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Air Pressure Switch: Adj, Auto Reset, 0.05 in wc to 12 in wc, Open Mounted, SPDT, Push-On, 277V AC (MPN AFS-298)

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