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UD/S4.210.2.1 KNX LED Dim Actuator

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UD/S4.210.2.1 KNX LED Dim Actuator: 4x210W Universal & LEDi Optimized

The UD/S4.210.2.1 KNX LED Dim Actuator is a versatile, multichannel universal dimming actuator specifically optimized for dimming retrofit LED lamps (LEDi). Featuring 4 independent channels, this device provides up to 4 x 210 W/VA of nominal power, with the capability to combine outputs to achieve a powerful 1 x 600 W/VA total load.This actuator offers unparalleled flexibility through automatic load detection (which can be deactivated) and universal compatibility with all major load types: incandescent, 230 V halogen, low-voltage halogen with conventional (L) or electronic (C) transformers. The low minimum load of 2 W ensures stable dimming even for modern, low-power LEDi.

The UD/S4.210.2.1 supports advanced installation flexibility with a separate N-connection per channel and allows for manual operation and programming without applied 230V supply voltage, making commissioning highly efficient.

1. UD/S4.210.2.1 KNX LED Dim Actuator: Universal Dimming and Scalability

The actuator is engineered for high-performance control across various lighting technologies and applications.

Dimming Technology & Capacity:

  • Channels: 4 independent dimming channels.
  • Optimized for LEDi: Excellent dimming performance for dimmable 230 V~ LEDi in both trailing edge (up to 4 x 210 W/VA) and leading edge (up to 4 x 80 W/VA) control.
  • Universal Compatibility: Suitable for Incandescent, HV Halogen, LV Halogen, and dimmable energy-saving lamps.
  • Power Scaling: Outputs can be connected in parallel in any configuration to boost output power up to 1 x 600 W/VA.

Control and Installation Features:

  • Detection: Features Automatic load detection to optimally manage connected loads.
  • Wiring: Separate N-connection per channel provides flexible and robust wiring.
  • Commissioning: Manual operation possible on the device, even without bus voltage or in an unprogrammed status.
  • Diagnostics: Offers Extensive test and diagnosis functions via the i-Bus tool for fast troubleshooting.

2. Technical Details and Installation

A high-capacity module designed for professional DIN-Rail integration.

  • Installation: Designed for professional DIN-Rail installation, occupying 6 modular spacings (105 mm width).
  • Voltage: Supports a wide nominal voltage range of 110 … 230 V AC/DC (50/60 Hz).
  • Bus System: Integrated KNX bus coupler for Twisted Pair Wiring. Commands can originate from a KNX Presence Sensor or a KNX Touch Panel .

DIN-Rail UD/S4.210.2.1 KNX LED Dim Actuator 4x210W

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