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COLUMBUS ELECTRIC Air Sensing Switch: Adj, Auto Reset, 0.05 in wc to 12 in wc, Conduit Box - Adjustable Set-Point Air Pressure Switches
COLUMBUS ELECTRICAdjustable Set-Point Air Pressure Switches

COLUMBUS ELECTRIC Air Sensing Switch: Adj, Auto Reset, 0.05 in wc to 12 in wc, Conduit Box

The COLUMBUS ELECTRIC Air Sensing Switch: Adj (MPN GRH3AD) is an adjustable set-point air pressure switch with auto reset, covering a range of 0.05 in wc to 12 in wc. It features a SPDT switch rated at 24V AC, housed…

SKU 3G-OTH-68777

Brand
COLUMBUS ELECTRIC
Item
Air Sensing Switch: Adj, Auto Reset, 0.05 in wc to 12 in wc, Conduit Box
Category
Adjustable Set-Point Air Pressure Switches
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Technical Specifications

COLUMBUS ELECTRIC
Manufacturer Part Number
GRH3AD
Type
Auto Reset, 0.05 in wc to 12 in wc, Conduit Box, SPDT, Integral Compression
Switch Voltage
24V AC
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COLUMBUS ELECTRIC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The COLUMBUS ELECTRIC Air Sensing Switch: Adj (MPN GRH3AD) is an adjustable set-point air pressure switch with auto reset, covering a range of 0.05 in wc to 12 in wc. It features a SPDT switch rated at 24V AC, housed in a conduit box with integral compression. This product is designed for sensing air pressure changes in industrial equipment.

Used in

Common applications for COLUMBUS ELECTRIC
Industrial burner control — Columbus Electric hazardous-location thermostats (HLT-1) for temperature regulation in explosive environments
HVAC system pressure monitoring — Columbus Electric adjustable air pressure switches (GRH3AD) for duct static pressure sensing
Gas wall heater temperature regulation — Columbus Electric gas heater thermostat (P322016) for 50° to 90°F control in residential heating
Attic ventilation management — Columbus Electric attic fan thermostat (1A22-7) for cool-only operation from 80° to 130°F
Portable cooling equipment — Columbus Electric nonprogrammable thermostat (KTO-121B) for SPST close-on-rise switching in temporary cooling units
Commercial building line-voltage control — Columbus Electric analog thermostat (9502DS2T-P) for 24 to 277V AC heating or cooling in plastic/steel enclosures

COLUMBUS ELECTRIC Products

3G Electric supplies COLUMBUS ELECTRIC 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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