SIEMENS GCA121.1E ELECTRONIC AIR DAMPER ACTUATOR

The Siemens GCA121.1E is a precision-engineered electronic air damper actuator designed for reliable HVAC performance. Part of the GCA Series with spring return functionality, it ensures automatic return to a fail-safe position during power failure”ideal for safety-critical ventilation systems.

Manufacturer: SIEMENS
Type: Electronic Air Damper Actuator
Model: GCA121.1E

Technical Information

• Series: GCA Series with Spring Return
• Operating Voltage: 24 V AC
• Nominal Torque: 16 Nm
• Damper Shaft Dimensions: Round: 8 / 25.6 mm, Square: 6 / 18 mm
• Minimum Shaft Length: 20 MONOGYR
• Auxiliary Switch: Optional
• Number of Full Cycles: 60,000
• Rated Impulse Voltage: 800 V
• Air Damper Area: 3 m²
• Angular Rotation: 90°
• Power Consumption: 7 VA, 5 W, Quiet Power: 3 W
• Positioning Time: Open: 90 s, Close: 15 s
• Cable Length: 0.9 m
• Max. Shaft Hardness: < 400 HV
• Temperature Range: -30 … 55 °C
• Protection Class: III as per EN 60 730
• Dimensions (W x H x D): 100 x 313 x 71 mm