Description
The A.J. Antunes 8024401045 is a single-pole, single-throw (SPST) normally open air differential pressure switch engineered for precise airflow and pressure monitoring in HVAC, combustion, and commercial equipment applications. With a sensing range of .17 to 1 inch water column (“wc), this switch delivers accurate differential pressure detection across a broad range of low-pressure airflow conditions.
Built to exacting safety standards, the 8024401045 carries FM (Factory Mutual) approval, making it a trusted choice for installations where third-party safety certification is required. Its normally open configuration ensures the switch remains open under no-flow or low-pressure conditions and closes upon reaching the set differential pressure threshold — ideal for proving airflow, protecting equipment, and enabling interlock circuits.
Key Features
- Differential pressure sensing range: .17–1″ water column (“wc)
- SPST (Single-Pole, Single-Throw) normally open switching action
- FM (Factory Mutual) approved for safety-critical installations
- Designed for air differential pressure monitoring in HVAC and commercial equipment
- Reliable switching performance for airflow proving and equipment interlock circuits
- OEM-quality replacement part from A.J. Antunes
Applications
- Airflow proving in furnaces, air handlers, and ventilation systems
- Combustion air proving for burner and boiler controls
- Commercial cooking and food service equipment pressure monitoring
- Safety interlock circuits requiring FM-approved components
Certifications
- FM (Factory Mutual) Approved
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