
Siemens Building Technology S55155-A111 Control
The Siemens S55155-A111 is a high-performance Powermite MT Series electronic actuator designed for precise 0-10 Vdc proportional control in demanding HVAC applications. Engineered for seamless integration with MT Series terminal valves, this spring-return actuator provides a nominal force of 300N (67 lbf), ensuring reliable fail-safe positioning during power loss. Operating on 24Vac, the unit features a linear 7/32-inch (5.5mm) stroke and a rapid positioning time of approximately 28 seconds, making it an ideal choice for modulating control of zone valves in plenum installations. The rugged construction and NEMA 1 rating allow for durable performance in commercial building automation environments.
For the field technician, the S55155-A111 (identical to the SSC61.5U) simplifies commissioning with a direct-coupled installation that requires no specialized tools. The integrated LED visual position indication and manual override provide immediate feedback and control during setup or maintenance. With its self-calibrating stroke and position feedback signal, this Siemens building technology component ensures high-accuracy environmental control and system efficiency for professional contractors.
Key Benefits:- Fail-Safe Protection: Reliable spring-return mechanism ensures the valve returns to its safety position during power interruptions.
- Tool-Free Installation: Large coupling nut allows for direct mounting to the valve body without additional hardware.
- Precise Modulation: Advanced 0-10 Vdc control signal compatibility provides accurate positioning for optimal thermal comfort.
- Visual Diagnostics: Built-in LED status indication assists in rapid troubleshooting and verification of actuator motion.
- Plenum Rated: UL listed for use in plenum spaces, simplifying compliance with local building codes.
Is this actuator compatible with older SSC61.5U models?
Yes, the S55155-A111 is a direct replacement for the SSC61.5U, offering identical form and function in most terminal valve applications.
Does this unit support manual override?
Yes, the actuator features a manual override function that allows for manual positioning of the valve during system commission or power failure.
What is the maximum operating stroke for this model?
The unit is specifically designed for a 7/32-inch (5.5mm) stroke, common in Powermite MT Series zone valves.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $240.67
-65%$240.67
$84.23Siemens Building Technology S55155-A111 Control
The Siemens S55155-A111 is a high-performance Powermite MT Series electronic actuator designed for precise 0-10 Vdc proportional control in demanding HVAC applications. Engineered for seamless integration with MT Series terminal valves, this spring-return actuator provides a nominal force of 300N (67 lbf), ensuring reliable fail-safe positioning during power loss. Operating on 24Vac, the unit features a linear 7/32-inch (5.5mm) stroke and a rapid positioning time of approximately 28 seconds, making it an ideal choice for modulating control of zone valves in plenum installations. The rugged construction and NEMA 1 rating allow for durable performance in commercial building automation environments.
For the field technician, the S55155-A111 (identical to the SSC61.5U) simplifies commissioning with a direct-coupled installation that requires no specialized tools. The integrated LED visual position indication and manual override provide immediate feedback and control during setup or maintenance. With its self-calibrating stroke and position feedback signal, this Siemens building technology component ensures high-accuracy environmental control and system efficiency for professional contractors.
Key Benefits:- Fail-Safe Protection: Reliable spring-return mechanism ensures the valve returns to its safety position during power interruptions.
- Tool-Free Installation: Large coupling nut allows for direct mounting to the valve body without additional hardware.
- Precise Modulation: Advanced 0-10 Vdc control signal compatibility provides accurate positioning for optimal thermal comfort.
- Visual Diagnostics: Built-in LED status indication assists in rapid troubleshooting and verification of actuator motion.
- Plenum Rated: UL listed for use in plenum spaces, simplifying compliance with local building codes.
Is this actuator compatible with older SSC61.5U models?
Yes, the S55155-A111 is a direct replacement for the SSC61.5U, offering identical form and function in most terminal valve applications.
Does this unit support manual override?
Yes, the actuator features a manual override function that allows for manual positioning of the valve during system commission or power failure.
What is the maximum operating stroke for this model?
The unit is specifically designed for a 7/32-inch (5.5mm) stroke, common in Powermite MT Series zone valves.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens S55155-A111 is a high-performance Powermite MT Series electronic actuator designed for precise 0-10 Vdc proportional control in demanding HVAC applications. Engineered for seamless integration with MT Series terminal valves, this spring-return actuator provides a nominal force of 300N (67 lbf), ensuring reliable fail-safe positioning during power loss. Operating on 24Vac, the unit features a linear 7/32-inch (5.5mm) stroke and a rapid positioning time of approximately 28 seconds, making it an ideal choice for modulating control of zone valves in plenum installations. The rugged construction and NEMA 1 rating allow for durable performance in commercial building automation environments.
For the field technician, the S55155-A111 (identical to the SSC61.5U) simplifies commissioning with a direct-coupled installation that requires no specialized tools. The integrated LED visual position indication and manual override provide immediate feedback and control during setup or maintenance. With its self-calibrating stroke and position feedback signal, this Siemens building technology component ensures high-accuracy environmental control and system efficiency for professional contractors.
Key Benefits:- Fail-Safe Protection: Reliable spring-return mechanism ensures the valve returns to its safety position during power interruptions.
- Tool-Free Installation: Large coupling nut allows for direct mounting to the valve body without additional hardware.
- Precise Modulation: Advanced 0-10 Vdc control signal compatibility provides accurate positioning for optimal thermal comfort.
- Visual Diagnostics: Built-in LED status indication assists in rapid troubleshooting and verification of actuator motion.
- Plenum Rated: UL listed for use in plenum spaces, simplifying compliance with local building codes.
Is this actuator compatible with older SSC61.5U models?
Yes, the S55155-A111 is a direct replacement for the SSC61.5U, offering identical form and function in most terminal valve applications.
Does this unit support manual override?
Yes, the actuator features a manual override function that allows for manual positioning of the valve during system commission or power failure.
What is the maximum operating stroke for this model?
The unit is specifically designed for a 7/32-inch (5.5mm) stroke, common in Powermite MT Series zone valves.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












