Description
Siemens GRD226.1U Fire/Smoke Damper Actuator Overview
The Siemens GRD226.1U is a 120V, 2-position spring-return actuator engineered specifically for fire and smoke damper applications in commercial HVAC and building automation systems. Designed to meet the demanding requirements of life-safety installations, this actuator provides dependable, fail-safe operation — automatically returning the damper to its closed (safe) position upon loss of power or signal, ensuring compliance with fire and smoke control system requirements.
Key Features
- 120V AC operating voltage for compatibility with standard commercial control circuits
- 2-position (open/closed) spring-return operation for fail-safe fire and smoke damper control
- Integrated 2 auxiliary switches for end-position feedback and system status monitoring
- Spring-return mechanism ensures automatic damper closure on power loss — critical for life-safety compliance
- Designed for fire/smoke rated damper applications in commercial and institutional buildings
- Siemens Building Technology quality construction for long-term reliability in critical applications
- Suitable for use in building automation and fire/smoke control systems
Application
The GRD226.1U is ideal for HVAC contractors, building automation integrators, and fire/life-safety system installers working on commercial, institutional, or industrial projects. The dual auxiliary switches allow for direct feedback to fire alarm control panels or building management systems, confirming damper position and enabling system-level monitoring and verification.
Product Specifications
- Brand: Siemens Building Technology
- Model / SKU: GRD226.1U
- Supply Voltage: 120V AC
- Control Type: 2-Position (On/Off)
- Operation: Spring-Return (Fail-Safe)
- Auxiliary Switches: 2 included
- Application: Fire/Smoke Damper Actuator
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