Robertshaw 2374-495 Air Pressure Switch, SPDT, 0.25"-1" WC

Robertshaw 2374-495 Air Pressure Switch SPDT .25" W.C. to 1.0" W.C
Applications including residential and light commercial - furnaces, electronic air cleaners and humidifiers.
provided with an SPDT switch that can be actuated by positive or negative pressure, or by pressure differential.
Highly accurate, these switches are practically insensitive to temperature change with an operating temperature range of –40°F to 190°F (–40° to 88°C).
Each switch is provided with mounting hardware and an adjustment tool for easy installation and calibration.
Electrical rating: 5 amp noninductive 120-277 VAC, 5 amp noninductive 28 VDC, 1 amp pilot duty 120 VA
Control set point: field adjustable (see order chart)
Maximum pressure: .5 PSI
Ambient temperature: –40°F to 190°F (–40° to 88°C)
Operating (mounting position) diaphragm vertical
Switch: SPDT
Electrical connections: 1/4" spade
Air sample line connectors will accept: 1/8", 1/4" or 3/8" tubing
Agency Approvals: UL File No. MH6213, CSA File No. LR18754