Description
Cleveland Controls DDP-109-187 Dual Air Pressure Sensing Switch Overview
The Cleveland Controls DDP-109-187 is a dual air pressure sensing switch featuring two independent SPDT (Single-Pole, Double-Throw) switching circuits in a single compact housing. Engineered for commercial and industrial HVAC applications, this switch provides reliable detection and control of air pressure conditions across ventilation systems, air handling units, and duct pressure monitoring applications.
Key Features
- Dual air pressure sensing capability in one integrated unit
- Two independent SPDT switching outputs for versatile control wiring
- Designed for commercial and industrial HVAC air system applications
- Compact, single-enclosure design simplifies installation and reduces panel space
- Suitable for monitoring supply, return, and exhaust air pressure conditions
- Reliable switching action for fan proving, filter monitoring, and safety interlock applications
Applications
- Air handling unit (AHU) fan proving and safety interlock
- Duct static pressure monitoring and control
- Filter differential pressure monitoring
- Ventilation system airflow verification
- Building automation and HVAC control panel integration
Why Choose Cleveland Controls
Cleveland Controls has a long-standing reputation for manufacturing dependable pressure sensing and switching devices for the HVAC and building controls industry. The DDP-109-187 dual-switch design reduces installation complexity by combining two sensing circuits into one device, saving time and material costs on the job site.







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