Cleveland Controls DDP-106-380 Sensing Switch

The Cleveland Controls DDP-106-380 Sensing Switch is a heavy-duty, industrial-grade Dual Air Pressure Sensing Switch engineered for precise proving in high-demand HVAC and energy management systems. This versatile component features two independently adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing technicians to establish a customized "deadband" for complex control circuits. With an operating range of 0.05" to 2.0" w.c., the Model DDP-106 is optimized for monitoring differential pressure across two separate sources or ensuring specific high/low actuation points within a single system. The DDP-106-380 utilizes dual plated housings, each containing a durable diaphragm and calibration spring designed for accurate sensing of air and non-combustible gases. For streamlined installation, the unit provides two low-pressure sample connections and one common high-pressure connection, all designed to interface with 1/4" OD metallic or semi-rigid tubing via integral compression ferrule and nut fittings. This differential pressure switch is built for longevity and stable performance in diverse contractor-led industrial applications.

• Independent Adjustment: Two separately-operated SPDT switches allow for precise field calibration of dual set points and deadbands.
• Universal Compatibility: Standard 1/4" OD compression fittings ensure the DDP-106-380 integrates seamlessly with existing copper, aluminum, or plastic tubing.
• High-Performance Proving: Rated for 300 VA pilot duty at 115 to 277 VAC, making it suitable for a wide range of fan proving and flow monitoring tasks.
• Versatile Mounting: The common foot bracket design simplifies surface mounting in vertical planes to maintain consistent calibration.
• Robust Construction: Engineered to withstand harsh environments with a wide operating temperature range of -40°F to 176°F.

How do I wire the DDP-106-380 for a high-limit alarm?
For high-limit applications, use the Normally Closed (NC) and Common terminals on the snap-acting switch. The circuit will open when the pressure exceeds your specified set point, triggering the safety shutdown or alarm.

Can this switch be used for negative pressure monitoring?
Yes. For negative pressure sensing, connect the sample line to the "L" (low) inlet while leaving the "H" (high) inlet open to the atmosphere. For differential sensing between two negative sources, connect the higher vacuum to the "L" port.

What is the maximum pressure limit for the internal diaphragms?
The Cleveland Controls DDP-106 series is designed for low-pressure applications with a 1/2 PSI maximum pressure limit to maintain the structural integrity of the sensing elements.

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.