Antunes Controls 8021206021 Pressure Switch

The Antunes Controls 8021206021 Pressure Switch (Model SMD) is an industrial-grade air differential pressure switch engineered for precise monitoring in HVACR and ventilation systems. Field-proven for its sensitive diaphragm, this SPDT pressure switch provides a reliable electrical interface with a 10-amp snap-action rating, ensuring accurate signal transmission for differential pressure sensing. With a versatile adjustable pressure range of .17" to 12" W.C., it accommodates a broad spectrum of static and differential pressure applications. This unit features a compression fitting for secure, leak-free pneumatic connections and includes a protective cover to maintain operational integrity in demanding mechanical environments. Technicians often specify the Antunes SMD-12C-33 for its robust construction and consistent set-point repeatability. Whether used for filter status monitoring or prove-of-flow verification, this adjustable air switch delivers the technical precision required for professional-tier installations.

• Adjustable Range: High-resolution scaling from .17" to 12" W.C. for fine-tuned system calibration.
• SPDT Electrical Output: Single-pole, double-throw 10-amp switch allows for normally open or normally closed wiring configurations.
• Complete Kit: Factory-equipped with a tube kit and durable cover, reducing additional hardware requirements during installation.
• Tactical Reliability: Features a compression fitting designed to withstand vibration and maintaining pressure seal integrity.

Common Questions

What is the maximum electrical load for the Antunes 8021206021?
This SPDT air switch is rated for a 10-amp snap-action electrical load, making it compatible with most standard control circuits and relay logic found in HVAC systems.

Can this switch be used for both positive and negative pressure monitoring?
Yes, as a differential pressure switch, the 8021206021 is designed to sense the difference between two pressure sources, making it suitable for vacuum, positive pressure, or differential applications.

Does the 8021206021 include mounting hardware?
The unit is supplied with the necessary compression fitting and a specialized tube kit to facilitate direct installation into the sensing environment.

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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