Siemens Building Technology S55180-A150 Actuator

S55180-A150 is the cross of SSB81U

Siemens Building Technology S55180-A150 Actuator – Powermite MZ Series, 24V, 3-Position Floating Control

The Siemens Building Technology S55180-A150 Actuator (SSB131.09U) is a high-performance Powermite™ MZ Series linear actuator designed for precise valve control in HVAC and building automation systems. This 3-position, floating-control actuator operates on 24 VAC and is engineered to work seamlessly with Siemens MZ Series valves featuring a 7/32-inch (5.5 mm) stroke.

Built for reliability and ease of use, the actuator provides 45 lbs (200 N) of positioning force, ensuring accurate valve modulation. It features a fail-in-place (non-spring return) design, manual override, and LED visual position indication for quick status checks. The unit is UL listed for plenum installations and protected by a NEMA 2 enclosure, making it suitable for a wide range of commercial HVAC environments.

Key Features:

• Model: S55180-A150

• Series: Powermite™ MZ (SSB131.09U)

• Actuator Type: Electronic, Linear

• Control Signal: 3-Position Floating Control

• Operating Voltage: 24 VAC (19.2–28.8 VAC)

• Positioning Force: 200 N (45 lb)

• Stroke Length: 5.5 mm (7/32")

• Positioning Time: 88 seconds

• Fail Safe: Fail-in-place (non-spring return)

• Power Consumption: 1 VA

• Manual Override: Yes, with LED position indicator

• Mounting Position: Upright to 90° inclined

• Degree of Protection: NEMA 2

• UL Listed: Approved for plenum installations

Environmental Ratings:

• Operating Temperature: 1°C to 50°C

• Operating Humidity: 5% to 95% RH (non-condensing)

Applications:
Ideal for HVAC zoning, air handling units, and building automation systems requiring reliable and accurate valve actuation.

Ensure dependable control and long-term performance with the Siemens S55180-A150 Powermite MZ Series Actuator, a trusted solution for professional HVAC and building control applications.