JOHNSON CONTROLS SPDT PRESSURE SWITCH 8/60 PSI 1/4 FLARE

Manufacturer: Johnson Controls

P74FA-1C JOHNSON CONTROLS SPDT PRESSURE SWITCH 8/60 PSI 1/4 FLARE - Pressure Range 8 to 60 PSI - Supply Voltage (Nominal) 277 VAC - Contact Rating 6 Amps - Pressure Connections 1/4" MNPT Male Fittings - Contact Form SPDT - Switch Action Open/Close on Rise and Fall - Reset Type Automatic - Pressure Differential 1.5 PSI - Series P74 - Operating Temp Range 32 to 104 F - Includes Universal Mounting Bracket Features - Heavy-duty, low-profile elements withstand unduly high overrun pressures that may be encountered in shipment or in some machine rooms. - Lockout models have a "trip-free" manual reset. - Long life contact structure with high contact force no contact bounce. - Single unit mounting and wiring saves installation time and material. - Ambient Temperature: 32 to 104F - Conduit Opening: 7/8-inch Diameter hole for ½ inch Conduit - Finish: Gray Baked - Features • Field-proven Pennswitch with a completely enclosed contact mechanism • Pressure differential setting is easily changed without removing the cover Applications - Differential pressure sensing on chillers or water-cooled condensers - Lube oil failure cutout for refrigeration compressors (same as the P28, but does not incorporate time delay) - Positioning M100 Series motor-actuated valves (P74JA-2) - To prove pump operation Series P74 measures the pressure difference between two sources: supply lines and return lines. A change in differential pressure will reposition the switching mechanism to cause corrective action of the supplementary control equipment. These differential pressure controls are for use as operating controls and/or indicating system functions through display lights or panels. They measure the difference in pressure exerted upon its two sensing elements. The controls are available for applications sensing air, oil or liquid. Typical applications are proof of flow across a chiller or water-cooled condenser, proof of flow in a heating or cooling coil and lube oil pressure sensing on refrigeration compressors. On a proof of flow application, the control measures pressure drops across two different points in either a closed water circulating system or a city water to supply system.

SKU: JOHNSON:P74FA-1C

Product Availability: 1

$241.07

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P74FA-1C JOHNSON CONTROLS SPDT PRESSURE SWITCH 8/60 PSI 1/4 FLARE

- Pressure Range 8 to 60 PSI
- Supply Voltage (Nominal) 277 VAC
- Contact Rating 6 Amps
- Pressure Connections 1/4" MNPT Male Fittings
- Contact Form SPDT
- Switch Action Open/Close on Rise and Fall
- Reset Type Automatic
- Pressure Differential 1.5 PSI
- Series P74
- Operating Temp Range 32 to 104 F
- Includes Universal Mounting Bracket

Features
- Heavy-duty, low-profile elements withstand unduly high overrun pressures that may be encountered in shipment or in some machine rooms.
- Lockout models have a "trip-free" manual reset.
- Long life contact structure with high contact force no contact bounce.
- Single unit mounting and wiring saves installation time and material.
- Ambient Temperature: 32 to 104F
- Conduit Opening: 7/8-inch Diameter hole for ½ inch Conduit
- Finish: Gray Baked
- Features
• Field-proven Pennswitch with a completely enclosed contact mechanism
• Pressure differential setting is easily changed without removing the cover

Applications
- Differential pressure sensing on chillers or water-cooled condensers
- Lube oil failure cutout for refrigeration compressors (same as the P28, but does not incorporate time delay)
- Positioning M100 Series motor-actuated valves (P74JA-2)
- To prove pump operation

Series P74 measures the pressure difference between two sources: supply lines and return lines. A change in differential pressure will reposition the switching mechanism to cause corrective action of the supplementary control equipment.

These differential pressure controls are for use as operating controls and/or indicating system functions through display lights or panels. They measure the difference in pressure exerted upon its two sensing elements.

The controls are available for applications sensing air, oil or liquid. Typical applications are
proof of flow across a chiller or water-cooled condenser, proof of flow in a heating or cooling coil and lube oil pressure sensing on refrigeration compressors. On a proof of flow application, the control measures pressure drops across two different points in either a closed water circulating system or a city water to supply system.