Description
The Siemens S55155-A108 is a floating fail-in-place actuator from the MT series, engineered for dependable performance in commercial HVAC and building automation applications. Designed to hold its last commanded position upon loss of control signal or power, this actuator provides an added layer of operational safety — preventing unwanted valve or damper movement during system interruptions.
Key Features
- Floating control operation for precise, stepwise positioning
- Fail-in-place functionality — maintains last position on power or signal loss
- MT series design built for commercial HVAC and building automation systems
- Compatible with a wide range of Siemens valve and damper assemblies
- Compact, robust construction for long-term reliability in demanding environments
- Siemens Building Technology quality and engineering
Application
The S55155-A108 is ideal for use in commercial HVAC systems where maintaining a stable actuator position during power interruptions is critical. Its floating control input makes it compatible with standard building automation controllers, enabling smooth integration into new or existing BAS installations.
Why Choose Siemens Actuators?
Siemens Building Technology actuators are trusted by mechanical contractors, building automation engineers, and HVAC professionals worldwide. The MT series combines proven reliability with straightforward installation, reducing commissioning time and long-term maintenance costs.
Product Details
- Brand: Siemens Building Technology
- SKU: S55155-A108
- Control Type: Floating
- Fail Mode: Fail-In-Place
- Series: MT
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