Description
The ASCO P159A121X1X03F0 is a 120-volt, On/Off general purpose actuator equipped with a proof of closure (POC) switch, engineered for dependable open/close control of valves and dampers in commercial HVAC and building automation systems.
Key Features
- 120V AC operating voltage for compatibility with standard commercial control circuits
- On/Off control action for straightforward open/close valve or damper operation
- General purpose (GP) design suitable for a wide range of HVAC and building automation applications
- Integrated proof of closure (POC) switch provides end-position feedback confirmation to the control system
- Series 9 (9S) actuator platform known for robust, long-service-life performance
- Compact actuator body for easy installation in tight mechanical spaces
Typical Applications
- Two-position valve actuation in hydronic heating and cooling systems
- Damper control in air handling and ventilation systems
- Building automation and energy management system integration
- Commercial HVAC zone control and shut-off applications
Product Specifications
- Brand: ASCO
- SKU / Model: P159A121X1X03F0
- Voltage: 120V AC
- Control Type: On/Off
- Actuator Series: 9S (Series 9)
- Application: General Purpose (GP)
- Switch Type: Proof of Closure (POC)







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