Core Features
"SSY319" Series & Functional Design: The "SSY319" denotes Siemens’ heavy-duty electric rotary actuator series, engineered for high-torque airflow control. It is a 24V AC-powered actuator with a 90° rotation angle (standard for large dampers) and a torque rating of 16 Nm—ideal for heavy-duty air dampers in industrial ductwork, large HVAC air handling units (AHUs), or smoke/fire dampers where higher torque than medium-duty models is required.
Dual Control Modes & High-Precision Feedback: Equipped with flexible control options to handle demanding airflow scenarios:
Modulating control (0–10V DC input): For variable air volume (VAV) systems or industrial process ventilation, enabling precise damper adjustment with ±1% positioning accuracy—critical for stable airflow in temperature- or pressure-sensitive processes (e.g., chemical manufacturing, power plant cooling).
On/off control (24V AC input): For emergency scenarios (e.g., fire damper closure) or zone isolation, ensuring rapid full-open/full-close response.
It includes built-in analog position feedback (0–10V DC) for real-time status monitoring, compatible with building management systems (BMS) or industrial PLCs for centralized control and fault diagnosis.
Rugged Industrial Construction: Engineered with a reinforced cast aluminum housing and a weight of 3.2 kg (7.05 lbs), suitable for floor, wall, or direct damper mounting in harsh environments. The housing features IP54 protection (dust-tight, water-resistant) and resistance to mild chemicals, withstanding industrial dust, moisture, and vibration—ideal for factory floors, power plant ventilation shafts, or rooftop AHU enclosures.
Heavy-Duty Safety & Reliability: Built with robust safeguards to ensure uptime in critical systems:
Dual overtorque protection: Electronic monitoring (16 Nm max) and mechanical torque limiters prevent damage from jammed dampers (e.g., debris blockage), avoiding actuator or damper failure.
Fire-rated performance: Meets EN 12101-6 standards for smoke/fire damper control, supporting emergency shutdown in fire scenarios with a 120°C thermal cut-off.
Wide voltage tolerance: Accepts 24V AC (50/60 Hz) input with ±15% fluctuation tolerance, ensuring stability in industrial power supplies with variable voltage.
Seamless Integration & Installation: Designed for compatibility with Siemens industrial controllers (e.g., Desigo CC) and third-party PLCs (e.g., Siemens S7 series) via standard 0–10V analog signals. It includes a universal damper shaft adapter (fits 10–20 mm diameter shafts) and heavy-duty wiring terminals (4 mm² max), reducing installation time by up to 25% vs. custom heavy-duty actuators. No specialized tools are required for setup.
Typical Applications
SIEMENS Actuator SSY319 is engineered for heavy-duty rotary control of large dampers—ideal for scenarios needing 16 Nm torque, high precision, and industrial durability in harsh environments. Key use cases include:
Industrial Process Ventilation: Controlling large dampers in chemical, pharmaceutical, or manufacturing plant ductwork. Modulating control maintains consistent airflow for process cooling or fume extraction, while chemical-resistant housing withstands harsh vapors—complying with ISO 12591 (industrial ventilation standards) and GMP (good manufacturing practices).
Large HVAC Air Handling Units (AHUs): Regulating supply/return air dampers in commercial or industrial AHUs (e.g., airport terminals, factory facilities). High torque handles large damper blades, and IP54 protection resists mechanical room dust and moisture—complying with EN 1886 (AHU standards) and ASHRAE 90.1 (energy efficiency).
Fire/Smoke Control Dampers: Controlling fire-rated dampers in commercial buildings or industrial facilities. On/off control enables rapid closure during fire events, and EN 12101-6 compliance meets local fire codes—complying with NFPA 90A (building fire safety standards).
Power Plant Cooling Systems: Adjusting dampers in power plant boiler draft systems or turbine cooling ducts. Heavy-duty construction withstands high vibration, and precise positioning optimizes airflow for energy efficiency—complying with IEC 60044 (power plant instrumentation standards).