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Allen Bradley

Allen Bradley 837E-TD1BN2A1-D4 Differential Pressure Switch

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ManufacturerAllen Bradley

Part number837E-TD1BN2A1-D4

Pressure Range 0-1" WC

Type Differential Pressure

Contact Type SPDT

Manufacturer Allen Bradley

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12-month warranty

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Low Differential Pressure Airflow Monitoring SPDT Contacts HVAC Compatibility Filter Status Detection

Product description

The Allen Bradley 837E-TD1BN2A1-D4 is a differential pressure switch engineered for precise monitoring of pressure differences in low-pressure systems. It typically operates within a range of 0 to 1 inch of water column (WC), making it highly sensitive to minor pressure variations. This switch features a Single Pole Double Throw (SPDT) contact configuration, offering flexible normally open (N.O.) and normally closed (N.C.) operational modes.

This differential pressure switch is extensively used in building automation and HVAC systems to monitor airflow across air filters, control fan operation, and ensure optimal ventilation performance. Its accuracy makes it suitable for maintaining air quality and system efficiency.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 837E-TD1BN2A1-D4. We are committed to providing reliable and competitively priced industrial automation components to meet your operational needs.

Technical specifications

Pressure Range	0-1" WC
Type	Differential Pressure
Contact Type	SPDT
Manufacturer	Allen Bradley
Series	837E

Common applications

HVAC Airflow

Filter Monitoring

Ventilation Systems

Building Automation

Pressure Monitoring

Compatible systems

Designed for integration into HVAC control systems and other applications requiring sensitive differential pressure monitoring.

Also known as

Allen Bradley 837ETD1BN2A1D4 AB 837E Differential Control 837E Series Airflow Switch

Replaces / compatible with

This switch is designed to replace similar Allen Bradley 837E series differential pressure switches, ensuring compatibility with established systems.

Technical note

Expert tip

The 837E-TD1BN2A1-D4's sensitivity to low pressure differentials makes it an excellent choice for detecting clogged filters or monitoring subtle airflow changes.

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Frequently asked questions

What applications is the Allen Bradley 837E-TD1BN2A1-D4 differential pressure switch best suited for?

The Allen Bradley 837E-TD1BN2A1-D4 is ideal for HVAC systems and building automation where monitoring low differential pressures, such as airflow across filters, is critical. Its range of 0-1" WC allows for sensitive detection of changes.