IGNITION ELECTRODE A434Y OILON
February 13, 2025
GN21000 GEORGIN
February 13, 2025
The SERVOMOTOR SQN30.121A2700 OILON (Model: SQN30.121A2700, BPZ:SQN30.121A2700) is an electromechanical damper actuator designed by Siemens Building Technologies and supplied for Oilon oil, gas, and dual-fuel burner systems.
Stock: available
SERVOMOTOR SQN30.121A2700 OILON Air & Fuel Damper Actuator
The SERVOMOTOR SQN30.121A2700 OILON (Model: SQN30.121A2700, BPZ:SQN30.121A2700) is an electromechanical damper actuator designed by Siemens Building Technologies and supplied for Oilon oil, gas, and dual-fuel burner systems. Engineered for precise volumetric flow control, the SERVOMOTOR SQN30.121A2700 OILON drives combustion air dampers, fuel butterfly valves, and gas control linkages to maintain optimal air-fuel ratios across burner operating cycles.
Operating on 220–240V AC power, the SERVOMOTOR SQN30.121A2700 OILON features a reversible synchronous motor coupled with a maintenance-free spur gear train and adjustable internal limit/auxiliary switches. Controlled directly by burner sequence logic (such as LME, LAL, or LFL controllers), it delivers accurate 90° positioning for pre-purge, low-fire, and high-fire burner modulation phases.
Key Features of the SERVOMOTOR SQN30.121A2700 OILON
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Precision Air-Fuel Flow Regulation: Drives air butterfly valves and mechanical dampers for accurate fuel-air proportioning.
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Synchronous Reversible Motor: Provides constant operating speed independent of load variations for high repeatability.
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Adjustable Limit & Auxiliary Switches: Built-in cam-operated end switches for exact positioning at low-fire, high-fire, and closed states.
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Maintenance-Free Gearbox: Factory-lubricated spur gear drive ensures smooth torque delivery and extended service life.
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Heat-Resistant Synthetic Housing: Impact and heat-resistant plastic enclosure guards internal cams and electrical terminals.
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Direct Siemens & Oilon Compatibility: Integrates seamlessly with Siemens burner control units and Oilon burner linkage assemblies.
Primary Applications
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Oilon Commercial Oil & Gas Burners: Air damper and fuel control valve positioning on light oil, heavy oil, and natural gas burners
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Industrial Boiler Systems: Automated draft control on steam generators, hot water boilers, and thermal oxidizers
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Marine Boiler Automation: Electric damper control for shipboard auxiliary boilers and sludge incinerator units
Technical Specifications
| Parameter Category | Specification Details |
| Manufacturer / Brand | Siemens Building Technologies / Oilon |
| Part Number / Keyword | SERVOMOTOR SQN30.121A2700 OILON (SQN30.121A2700) |
| Device Type | Electric Damper Servomotor / Actuator |
| Operating Voltage | 220V to 240V AC (+10% / -15%), 50/60 Hz |
| Running Time (for 90°) | 4.5 seconds (at 50 Hz) / 3.7 seconds (at 60 Hz) |
| Holding & Running Torque | 1.5 Nm |
| Direction of Rotation | Counterclockwise (CCW) looking at drive shaft |
| Angular Stroke / Position Range | 0° to 90° adjustable via color-coded cams |
| Number of Limit/Auxiliary Switches | 2 limit switches, 2 auxiliary switches |
| Enclosure Protection | IP40 |
| Operating Temperature | -20°C to +60°C (-4°F to 140°F) |
| Weight | Approx. 0.80 kg |
Package Contents
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1 × SERVOMOTOR SQN30.121A2700 OILON Actuator Unit
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Cam Adjustment Key & Wiring Connection Diagram