Description
The Siemens S55180-A157 is a high-performance 24 VAC actuator engineered for precise modulating control in commercial HVAC and building automation applications. Featuring a 0–10 VDC control signal input, this actuator delivers smooth, proportional positioning for dampers and valves where accurate airflow and fluid management are critical.
Key Features
- 24 VAC supply voltage for compatibility with standard HVAC control systems
- 0–10 VDC modulating control signal for precise proportional positioning
- Non-Spring Return (NSR) design — actuator holds last position on power loss
- Normally Closed (NC) fail-safe action for reliable system protection
- Compact, robust construction suited for commercial and light industrial environments
- Designed for integration with Siemens Building Technology control platforms
Application
The S55180-A157 is ideal for use in VAV systems, air handling units, and hydronic valve control where proportional modulation and reliable fail-safe positioning are required. Its non-spring return mechanism ensures the actuator maintains its last commanded position during a power interruption, making it well-suited for energy management and zone control strategies.
Why Choose Siemens Building Technology
Siemens Building Technology actuators are trusted by mechanical contractors and building automation professionals worldwide for their precision engineering, long service life, and seamless integration with modern BAS platforms. The S55180-A157 upholds that standard, delivering dependable performance in demanding commercial HVAC environments.
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