Description
The Siemens GJD226.1U is a 120-volt, 2-position spring return actuator engineered specifically for fire and smoke damper applications in commercial and industrial HVAC systems. Designed to meet the stringent demands of life-safety installations, this actuator delivers dependable open/close control with automatic spring return to the fail-safe position upon loss of power — a critical feature in fire and smoke control scenarios.
Equipped with two built-in auxiliary switches, the GJD226.1U provides end-position feedback to building automation systems, fire alarm panels, or control panels, enabling real-time status monitoring of damper position. This makes it an ideal choice for integration into fire alarm and smoke control systems where position confirmation is required by code.
Key Features
- 120V AC supply voltage for compatibility with standard commercial control circuits
- 2-position (open/close) control for straightforward fire and smoke damper operation
- Spring return mechanism ensures automatic fail-safe positioning on power loss
- Includes 2 auxiliary switches for end-position feedback and system integration
- Purpose-built for fire and smoke damper life-safety applications
- Designed for integration with building automation and fire alarm control systems
- Robust Siemens Building Technology construction for long-term reliability
Specifications
- SKU: GJD226.1U
- Brand: Siemens Building Technology
- Supply Voltage: 120V AC
- Control Type: 2-Position (On/Off)
- Actuator Action: Spring Return
- Application: Fire / Smoke Damper
- Auxiliary Switches: 2 included
Application
The GJD226.1U is suited for use on fire dampers, smoke dampers, and combination fire/smoke dampers in commercial buildings, hospitals, schools, and other facilities where life-safety code compliance is required. Its spring return action guarantees the damper returns to its fail-safe position — typically closed — whenever power is interrupted, helping to contain smoke and fire spread in accordance with NFPA and local building codes.
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