Description
The A.J. Antunes 8021202056 is a genuine OEM air differential pressure switch designed to monitor low pressure changes in commercial HVAC, industrial, and mechanical systems. This switch is ideal for sensing airflow, duct differential pressure, or filter pressure drops and actuating control circuits when the pressure differential reaches a set threshold.
Key Features
- Pressure Range: 0.17 – 1.0 inches of water column (W.C.) — suited for low differential applications.
- Switch Type: Single pole, double throw (SPDT) contact provides reliable switching performance based on pressure changes.
- Connections: Typically includes a 1/4″ male NPT bottom port and a 1/8″ female NPT auxiliary port for tubing or line connection.
- Construction: Compact, durable design suitable for installation in HVAC units, pressure sensing circuits, or air handling systems.
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