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Robertshaw 2374-500 Pressure Switch

Robertshaw 2374-500 Pressure Switch

The Robertshaw 2374-500 Pressure Switch is a high-performance, field-adjustable air sensing switch designed for critical monitoring in residential and light commercial HVAC systems. This SPDT (Single Pole Double Throw) control is engineered to sense positive, negative, or differential air pressure, making it a versatile replacement for a broad range of furnace pressure switches, electronic air cleaners, and humidifiers. Operating reliably in extreme environments from -40°F to 190°F, this unit features a wide set-point range of 0.05" to 12.0" W.C., allowing for precise calibration using the included adjustment tool. The rugged stainless steel housing and 1/4" spade connectors ensure a secure, long-lasting interface with standard 120V to 277V AC circuits. Whether you are troubleshooting air filtration status or ensuring proper draft in gas-fired units, the 2374-500 provides the sensitivity and multi-port flexibility required by veteran contractors to keep systems within safety parameters.

Key Benefits
  • Universal Compatibility: Adjustable range replaces multiple fixed-point OEM models in furnaces and DDC applications.
  • High-Temperature Resilience: NEMA-rated construction functions from -40°F to 190°F without losing accuracy.
  • Flexible Monitoring: Capable of sensing positive, negative, or differential pressure for diverse diagnostic needs.
  • Contractor-Ready Kit: Includes necessary mounting hardware and an adjustment tool for immediate field calibration.
  • Reliable Switching: Features an SPDT contact arrangement rated for 5 Amps up to 277V AC.
Common Questions

Is the Robertshaw 2374-500 compatible with different tubing sizes?
Yes, the integral sample line connectors are designed to accept 1/8", 1/4", or 3/8" tubing, providing flexibility during field installation.

What is the proper mounting orientation for this switch?
To maintain factory-calibrated specifications, the diaphragm must be mounted in a vertical plane. Mounting in other orientations may shift the set point.

Can I use this for both positive and negative pressure applications?
Absolutely. This adjustable air switch is designed to actuate on positive pressure, vacuum (negative pressure), or the difference between two air sources.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$22.34

Original: $63.82

-65%
Robertshaw 2374-500 Pressure Switch

$63.82

$22.34

Product Information

Shipping & Returns

Description

The Robertshaw 2374-500 Pressure Switch is a high-performance, field-adjustable air sensing switch designed for critical monitoring in residential and light commercial HVAC systems. This SPDT (Single Pole Double Throw) control is engineered to sense positive, negative, or differential air pressure, making it a versatile replacement for a broad range of furnace pressure switches, electronic air cleaners, and humidifiers. Operating reliably in extreme environments from -40°F to 190°F, this unit features a wide set-point range of 0.05" to 12.0" W.C., allowing for precise calibration using the included adjustment tool. The rugged stainless steel housing and 1/4" spade connectors ensure a secure, long-lasting interface with standard 120V to 277V AC circuits. Whether you are troubleshooting air filtration status or ensuring proper draft in gas-fired units, the 2374-500 provides the sensitivity and multi-port flexibility required by veteran contractors to keep systems within safety parameters.

Key Benefits
  • Universal Compatibility: Adjustable range replaces multiple fixed-point OEM models in furnaces and DDC applications.
  • High-Temperature Resilience: NEMA-rated construction functions from -40°F to 190°F without losing accuracy.
  • Flexible Monitoring: Capable of sensing positive, negative, or differential pressure for diverse diagnostic needs.
  • Contractor-Ready Kit: Includes necessary mounting hardware and an adjustment tool for immediate field calibration.
  • Reliable Switching: Features an SPDT contact arrangement rated for 5 Amps up to 277V AC.
Common Questions

Is the Robertshaw 2374-500 compatible with different tubing sizes?
Yes, the integral sample line connectors are designed to accept 1/8", 1/4", or 3/8" tubing, providing flexibility during field installation.

What is the proper mounting orientation for this switch?
To maintain factory-calibrated specifications, the diaphragm must be mounted in a vertical plane. Mounting in other orientations may shift the set point.

Can I use this for both positive and negative pressure applications?
Absolutely. This adjustable air switch is designed to actuate on positive pressure, vacuum (negative pressure), or the difference between two air sources.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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