Core Features
"SSC161" Series & Functional Design: The "SSC161" denotes Siemens’ heavy-duty rotary actuator series, optimized for high-torque control of large dampers in industrial and large commercial systems. The "05HF" (High Force) model is a 24V AC-powered rotary actuator with a 90° rotation angle (standard for industrial dampers) and a torque rating of 50 Nm—ideal for large air dampers in industrial ventilation (e.g., factory process ducts, power plant exhausts) or large commercial HVAC (e.g., airport/ mall AHUs) where 24V low-voltage power, high durability, and high torque are critical.
Advanced Control Modes & Industrial-Grade Feedback: Equipped with professional control to handle high-demand airflow scenarios:
Modulating control (0–10V DC / 4–20mA input): For precision airflow regulation (e.g., industrial process temperature control, large commercial zone airflow), enabling damper adjustment with ±1.2% positioning accuracy—essential for stable industrial processes or large-scale environmental control.
On/off + fail-safe control: For emergency isolation (e.g., fire events, industrial shutdowns) or system isolation, with configurable fail-safe positions (open/closed) and high-speed response (≤25 seconds/90°) to minimize operational risks.
It includes built-in analog position feedback (0–10V DC / 4–20mA) and digital fault signals, compatible with industrial PLCs or large commercial BMS for real-time monitoring and diagnostic alerts.
Heavy-Duty Industrial Construction: Engineered with a cast iron housing (corrosion-resistant, epoxy-coated) and a robust design of 18 kg (39.7 lbs), suitable for wall, bracket, or direct damper mounting in industrial facilities or large commercial mechanical rooms. The housing features IP65 protection (dust-tight, water-resistant) to withstand industrial dust, moisture, and harsh environmental conditions—ideal for indoor/outdoor industrial or large commercial installations.
Safety & Reliability Features: Built with industrial-grade safeguards for long-term heavy-duty operation:
Triple overtorque protection: Electronic monitoring (50 Nm max continuous torque, 75 Nm peak), mechanical torque limiters, and thermal overload cutoffs prevent damage from jammed dampers (e.g., debris blockage, duct pressure surges), avoiding actuator or damper failure in critical systems.
Enhanced electrical protection: Includes short-circuit, reverse polarity, and surge protection to safeguard against industrial power fluctuations or electrical faults.
Wide voltage tolerance: Accepts 24V AC (50/60 Hz) input with ±15% fluctuation tolerance, ensuring stability in industrial low-voltage control systems.
Industrial Integration & Durable Installation: Designed for compatibility with Siemens industrial controllers (e.g., SIMATIC S7-1500) and third-party industrial PLCs/BMS via standard 0–10V DC / 4–20mA signals. It includes a heavy-duty universal damper shaft adapter (fits 30–50 mm diameter shafts) and stainless steel wiring terminals (6 mm² max), with tool-free calibration via a built-in HMI—reducing installation time for heavy-duty setups by up to 30%.
Typical Applications
SIEMENS Actuator SSC161.05HF is engineered for heavy-duty rotary control of large dampers—ideal for scenarios needing 50 Nm torque, industrial durability, and 24V power in industrial ventilation or large commercial HVAC systems. Key use cases include:
Industrial Process Ventilation: Controlling large dampers in factory process ducts (e.g., chemical plant fume extraction, steel mill temperature control). High torque handles large damper blades, and IP65 protection withstands industrial dust/moisture—complying with ISO 12591 (industrial ventilation standards) and OSHA safety requirements.
Large Commercial HVAC AHUs: Adjusting dampers in large air handling units (AHUs) for airports, shopping malls, or stadiums. Modulating control manages airflow for multi-zone comfort, and fail-safe function ensures emergency shutdown—complying with EN 13141-6 (large non-residential ventilation) and ASHRAE 90.1 (commercial energy efficiency).
Power Plant Exhaust Dampers: Controlling large exhaust dampers in power plants (e.g., coal/gas-fired plant flue ducts). Heavy-duty construction withstands high temperatures and pressure, and digital feedback enables remote monitoring—complying with ISO 81346 (industrial plant piping standards).
Wastewater Treatment Facility Ventilation: Regulating dampers in wastewater treatment plant aeration tanks or odor control ducts. IP65 protection resists moisture and chemical fumes, and high torque handles corrosion-weighted dampers—complying with EPA wastewater treatment ventilation guidelines.