Johnson P74BA-1C Differential Pressure Control SPST Opens On Diff Press Decrease 8/70# Replaces 274AP10-2300

Product Description

The Johnson P74BA-1C is a differential pressure control designed for HVAC applications. It operates as a single-pole, single-throw (SPST) switch that closes when the differential pressure decreases. This control measures pressure differences across two sensing points.

• Pressure range of eight to seventy psi
• Capable of detecting pressure changes in air, oil, or liquids
• Easy adjustment for operation points

Product Highlights

This pressure control provides reliable operation for monitoring flow across chillers and cooling coils, ensuring system efficiency and safety.

Product Information

Standard Information

• Brand: Johnson
• MPN: P74BA-1C

Technical Specifications

• Type: SPST
• Pressure Range: 8 to 70 psi
• Pressure Differential: 8 to 30 psi
• Connection: 36 inch capillary with 1/4 inch flare nut
• Voltage: 120/240 V
• Ambient Temperature: 32°F to 104°F
• Mounting: Any position with universal mounting bracket
• Conduit Opening: 7/8 inch diameter