Cleveland Controls NS2-0112-00 Pressure Switch

The Cleveland Controls NS2-0112-00 is an industrial-grade air pressure sensing switch designed for critical monitoring in HVAC and refrigeration systems. Engineered with a glass-filled polycarbonate housing and a stainless steel diaphragm, this unit provides high stability and corrosion resistance even in demanding environments. It features a factory-calibrated set point of .25" w.c. and utilizes a compression fitting for secure sample line integration. As the direct replacement for RSS-495-112, the NS2-0112-00 ensures seamless compatibility for contractors servicing AAON heating and cooling units. The SPDT electrical configuration and 90° quick-connect terminals allow for versatile wiring in positive, negative, or differential pressure applications. Rated for a wide operating temperature range and certified by UL and CSA, this switch delivers the precise sensing required to maintain system safety, verify airflow, and monitor filter status. Its compact footprint makes it an ideal choice for tight cabinet installations where reliable performance is non-negotiable.

• Exact OEM Compatibility: Serves as the factory-authorized direct replacement for RSS-495-112, ensuring electrical and mechanical alignment with AAON equipment.
• Durable Construction: Features a stainless steel diaphragm and a contaminant-free housing to prevent premature failure in harsh commercial environments.
• Precise Low-Pressure Sensing: Calibrated at .25" w.c. to accurately detect marginal pressure changes, improving overall system safety and efficiency.
• Flexible Installation: Equipped with a compression fitting and multiple mounting options to accommodate standard 1/4" or 3/16" tubing.
• Reliable Switching: High-quality SPDT snap-action switch rated for 100,000 cycles, providing consistent performance across its service life.

Is the set point on the NS2-0112-00 field adjustable?
This specific model is factory-calibrated at .25" w.c. and is designed for applications requiring a fixed, reliable set point. For adjustable requirements, a universal series switch would be necessary.

Can this switch be used to sense vacuum or negative pressure?
Yes, the Cleveland Controls NS2-0112-00 is designed to sense positive, negative, or differential air pressure by utilizing the color-coded high (black) and low (gray) ports.

What are the symptoms of a failing pressure switch?
A failing switch often results in ignition lockout or "pressure switch stuck open" error codes. Technicians should verify the inducer motor draft and inspect for water in the compression fitting or tubing before replacing the component.

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.