
Cleveland Controls DDP-109-210 Sensing Switch
The Cleveland Controls DDP-109-210 is a heavy-duty dual setpoint differential air pressure switch designed for critical proving and alarm functions in HVAC and energy management systems. This unit features two independently adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing for a precise adjustable deadband or the monitoring of two distinct pressure sources. The silicone diaphragm and rugged metallic housing ensure consistent performance in demanding environments, with a field-adjustable range of 0.05" to 2.0" w.c. for each element. This air pressure sensing switch is ideal for fan status monitoring and filter efficiency tracking, providing reliable mechanical logic for complex control sequences. The 1/4" OD compression fittings and 1/2" conduit connections facilitate standard field installation for industrial and commercial contractors.
Key Benefits- Dual Independent Operation: Two separate SPDT switches allow for redundant safety protocols or tiered alarm and control stages.
- Precision Deadband Control: Since both switches are set independently, technicians can establish a custom deadband for high/low actuation.
- Contractor-Grade Housing: Features a protective zinc-plated steel enclosure to prevent accidental contact with live switch terminal screws.
- Professional Mounting: Integrated foot bracket supports vertical mounting to maintain the lowest specified operating set point accurately.
- Compatibility: Designed for use with air and inert dry gasses, featuring 1/4 inch compression connections for rigid or semi-rigid tubing.
How do I adjust the set points on this switch?
Technicians can calibrate each element by turning the adjustment screw. Four full turns clockwise from the stop engages the spring, with each following turn representing approximately 0.2" w.c. for precise differential pressure range settings.
In what orientation should the DDP-109-210 be installed?
To achieve the specified 0.05" w.c. set point, the unit must be mounted with the diaphragms in a vertical plane. Avoid mounting with sample line connections facing upward to prevent debris or moisture accumulation.
What electrical load can this pressure switch handle?
The snap-acting switches are rated for 300 VA pilot duty at 115 to 277 Vac, or up to 15A non-inductive load at 277 Vac, making it suitable for direct interface with most HVAC control circuits.
This item is not eligible for free shipping.
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.
Original: $102.79
-65%$102.79
$35.98Cleveland Controls DDP-109-210 Sensing Switch
The Cleveland Controls DDP-109-210 is a heavy-duty dual setpoint differential air pressure switch designed for critical proving and alarm functions in HVAC and energy management systems. This unit features two independently adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing for a precise adjustable deadband or the monitoring of two distinct pressure sources. The silicone diaphragm and rugged metallic housing ensure consistent performance in demanding environments, with a field-adjustable range of 0.05" to 2.0" w.c. for each element. This air pressure sensing switch is ideal for fan status monitoring and filter efficiency tracking, providing reliable mechanical logic for complex control sequences. The 1/4" OD compression fittings and 1/2" conduit connections facilitate standard field installation for industrial and commercial contractors.
Key Benefits- Dual Independent Operation: Two separate SPDT switches allow for redundant safety protocols or tiered alarm and control stages.
- Precision Deadband Control: Since both switches are set independently, technicians can establish a custom deadband for high/low actuation.
- Contractor-Grade Housing: Features a protective zinc-plated steel enclosure to prevent accidental contact with live switch terminal screws.
- Professional Mounting: Integrated foot bracket supports vertical mounting to maintain the lowest specified operating set point accurately.
- Compatibility: Designed for use with air and inert dry gasses, featuring 1/4 inch compression connections for rigid or semi-rigid tubing.
How do I adjust the set points on this switch?
Technicians can calibrate each element by turning the adjustment screw. Four full turns clockwise from the stop engages the spring, with each following turn representing approximately 0.2" w.c. for precise differential pressure range settings.
In what orientation should the DDP-109-210 be installed?
To achieve the specified 0.05" w.c. set point, the unit must be mounted with the diaphragms in a vertical plane. Avoid mounting with sample line connections facing upward to prevent debris or moisture accumulation.
What electrical load can this pressure switch handle?
The snap-acting switches are rated for 300 VA pilot duty at 115 to 277 Vac, or up to 15A non-inductive load at 277 Vac, making it suitable for direct interface with most HVAC control circuits.
This item is not eligible for free shipping.
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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Description
The Cleveland Controls DDP-109-210 is a heavy-duty dual setpoint differential air pressure switch designed for critical proving and alarm functions in HVAC and energy management systems. This unit features two independently adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing for a precise adjustable deadband or the monitoring of two distinct pressure sources. The silicone diaphragm and rugged metallic housing ensure consistent performance in demanding environments, with a field-adjustable range of 0.05" to 2.0" w.c. for each element. This air pressure sensing switch is ideal for fan status monitoring and filter efficiency tracking, providing reliable mechanical logic for complex control sequences. The 1/4" OD compression fittings and 1/2" conduit connections facilitate standard field installation for industrial and commercial contractors.
Key Benefits- Dual Independent Operation: Two separate SPDT switches allow for redundant safety protocols or tiered alarm and control stages.
- Precision Deadband Control: Since both switches are set independently, technicians can establish a custom deadband for high/low actuation.
- Contractor-Grade Housing: Features a protective zinc-plated steel enclosure to prevent accidental contact with live switch terminal screws.
- Professional Mounting: Integrated foot bracket supports vertical mounting to maintain the lowest specified operating set point accurately.
- Compatibility: Designed for use with air and inert dry gasses, featuring 1/4 inch compression connections for rigid or semi-rigid tubing.
How do I adjust the set points on this switch?
Technicians can calibrate each element by turning the adjustment screw. Four full turns clockwise from the stop engages the spring, with each following turn representing approximately 0.2" w.c. for precise differential pressure range settings.
In what orientation should the DDP-109-210 be installed?
To achieve the specified 0.05" w.c. set point, the unit must be mounted with the diaphragms in a vertical plane. Avoid mounting with sample line connections facing upward to prevent debris or moisture accumulation.
What electrical load can this pressure switch handle?
The snap-acting switches are rated for 300 VA pilot duty at 115 to 277 Vac, or up to 15A non-inductive load at 277 Vac, making it suitable for direct interface with most HVAC control circuits.
This item is not eligible for free shipping.
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.












