ABB UD/S4.315.2.1 4-Channel 315W Universal Dimming Actuator
- Automatic load detection for intelligent adaptation to connected lighting types
- Four independent channels with 315W maximum power output per channel
- Dedicated neutral connection for enhanced dimming smoothness
- KNX TP bus compatibility for seamless smart building integration
- Manual on-device operation for testing and emergency use
- Compact DIN-rail mounting design (8 division units)
- IP20 protection class for indoor control cabinet installation
- Supports low-wattage loads down to 2W
| Parameter | Details |
|---|---|
| Model Number | UD/S4.315.2.1 |
| Channel Quantity | 4 independent channels |
| Max Power per Channel | 315W |
| Compatible Load Types | Retrofit LED (LEDi), incandescent lamps, low-voltage halogen (with transformers), 230V halogen, dimmable energy-saving halogen |
| Minimum Load | 2W |
| Bus Compatibility | KNX TP |
| Protection Class | IP20 |
| Installation Type | DIN-rail mounted (8 division units) |
| Operating Voltage | 230V AC (50/60 Hz) |
| Dimming Performance | Flicker-free, smooth dimming across full brightness range |
Ideal for offices, retail stores, hotels, and conference centers—supports multi-zone dimming for mixed LED/halogen setups and integrates with KNX building automation systems for centralized control.
Suitable for large lobbies, exhibition halls, industrial workspaces, or auditoriums requiring high-wattage lighting (315W per channel) with precise brightness adjustment.
Seamlessly upgrades existing lighting infrastructure to support LEDs while retaining compatibility with traditional halogen/incandescent fixtures, avoiding full infrastructure replacement.
Perfect for luxury homes, villas, or home theaters with multi-room lighting systems—enables customized ambiance and integration with smart home KNX networks for scene programming.
Excels in spaces using a combination of modern LEDs and traditional lamps where consistent, reliable dimming across different load types is critical.
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