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Honeywell PBN3D451R1 Low-Pressure Switch Sensor

The Honeywell PBN3 series offers a range of miniature, high-current, low-pressure devices designed for precise gauge pressure measurement and switching. These switches are compact, lightweight, and feature a snap-action SPDT switch capable of handling up to 16A. They are suitable for applications requiring reliable pressure sensing in environments with limited space, such as HVAC systems, liquid level sensing, and pump control. The PBN3 series provides a robust and versatile solution for low-pressure monitoring and control.

Authorized Distributors
Source:Newark
Part No:PBN3D451-R1
Stock:45
Inv Date:06-01-2026
Price: Unit price: $97.72
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Part No:PBN3D451-R1
Stock:0
Inv Date:06-02-2026
Price: N/A
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Part No:PBN3D451-R1
Stock:45
Inv Date:06-01-2026
Price: Unit price: $82.25
Buy/RFQ:
Part No:PBN3D451-R1
Stock:45
Inv Date:06-01-2026
Price: Unit price: $82.25
Buy/RFQ:
Part No:PBN3D451-R1
Stock:30
Inv Date:06-01-2026
Price: Unit price: $66.11
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Honeywell PBN3D451R1 Low-Pressure Switch Sensor Specifications:

  • Output: SPDT normally open or normally closed
  • Sensing medium: Air or compatible fluids
  • Expected mechanical life: Up to 5 million cycles depending on load
  • Proof pressure: 15 psi for set points ≤ 75 in-H2O; 80 psi for set points > 75 in-H2O
  • Weight: Less than 20 grams
  • Operating temperature: 4 °C to 66 °C (Polyurethane diaphragm); -40 °C to 96 °C (Tefon diaphragm)
  • Mounting: 2,6 mm (No 4) screws or 2 mm (No 2) screws
  • Case material: Polycarbonate (other materials available)
  • Contact material: Gold inlay 18 carat on phosphor bronze
  • Diaphragm material: Polyurethane (standard) or Teflon (optional)
  • Electrical connections: Terminals: 4,8 x 0,5 mm tab-type
  • Pressure ports: Smooth perpendicular and barbed radial
  • Pressure settings: Factory set or adjustable
  • Switching hysteresis: 0 %

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Frequently Asked Questions

Where can I buy Honeywell PBN3D451R1?

You can click on the BUY or RFQ button to purchase PBN3D451R1 from an authorized Honeywell distributor.

How do I troubleshoot issues or seek technical support for part PBN3D451R1?

You can download the PBN3D451R1 datasheet or visit the Honeywell website for support.

Who is the manufacturer of PBN3D451R1?

Honeywell

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