Siemens GCA121.1E Electronic Damper Actuator
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
| 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 |
