N 528D01 Universal dimmer, 2 x 300 VA, RLC AC 230 V

Datasheet

Universal Dimmer REG | 2-fold, RLC, 300 W | art.nr.: N 528D01

The universal dimmer provides a versatile solution for switching and dimming various load types. With two separately configurable outputs, it is suitable for resistive, inductive, and capacitive loads. The device automatically detects the connected load type and switches seamlessly between leading-edge and trailing-edge control. Fully configurable via ETS, the dimmer offers extensive functionality for flexible lighting control in residential and commercial applications.

Key Features

• 2 outputs for switching and dimming (2x300 VA or 1x500 VA at 35°C).
• Automatic load detection and adjustment to leading-edge or trailing-edge control.
• No minimum load required per output.
• Protection against short circuit, overload, and temperature rise.
• Support for dimmable LED lamps, halogen lamps, and incandescent lamps.
• Fully configurable via ETS, with advanced scene and time settings.
• Integrated bus coupling unit (KNX bus connection).
• Construction site function for switching lights before ETS configuration.

Technical Data

• Power Supply:
  • KNX bus voltage: DC 24V (21–30V).
  • KNX bus current: Typically 5 mA, max. 8 mA.
  • Rated voltage: AC 230V (+10%/-15%), 50/60 Hz.
• Load Capacity (at 35°C ambient temperature):
  • 2 channels: 2x300 VA.
  • 1 channel: 1x500 VA.
• Lamp Compatibility:
  • Incandescent lamps: 300 W / 500 W.
  • Halogen lamps (high voltage): 300 W / 500 W.
  • Halogen lamps (low voltage, electronic): 300 VA / 500 VA.
  • Halogen lamps (low voltage, magnetic): 240 VA / 400 VA.
  • Dimmable LEDs: ≤100 VA / ≤200 VA.
  • Dimmable CFLs: ≤45 VA / ≤75 VA.
• Protection Mechanisms:
  • Short circuit: Automatic shutdown with recovery attempts.
  • Overload: Automatic shutdown on overload detection.
  • Temperature rise: Automatic shutdown on overheating.
• Connections:
  • KNX bus: Screwless terminals, 0.6–0.8 mm Ø, stripping length 5 mm.
  • Load terminals: Screw terminals, stripping length 7–9 mm.
  • Conductor cross-section: 0.5–4.0 mm² solid, 0.5–2.5 mm² stranded.
• Physical Specifications:
  • Dimensions: 72 x 90 x 55 mm (4 TE width).
  • Housing: Plastic.
  • Mounting: DIN rail (TH35 according to EN 60715).
  • Weight: Approx. 220 g.
  • IP protection: IP20.
• Environmental Conditions:
  • Operating temperature: -5°C to +45°C.
  • Storage temperature: -20°C to +70°C.
  • Relative humidity: 5% to 95% (non-condensing).
• Standards:
  • Protection class: Class III (according to EN 60529).
  • Pollution degree: 2 (according to IEC 60664-1).
  • Overvoltage category: III (according to IEC 60664-1).

Additional Functions

• 8-bit scene control with assignment of each output to up to 8 scenes.
• Individually adjustable dimming times (brighter/darker) for each output.
• Optional warning before switching off by dimming to 50% during night mode.
• Counters for operating hours and switching cycles with threshold monitoring.
• Adjustable dimming values for power loss or recovery.
• Timer and night mode with adjustable ON and OFF delays.

Important Notes

In the event of a short circuit, the dimmer temporarily disables the load and attempts to restore it after 3 seconds. If the issue persists, the load remains disconnected. In case of overheating, the dimmer automatically shuts down and recovers when the temperature returns to normal. The construction site function allows lighting to be controlled before ETS configuration is complete.

Applications

The universal dimmer is ideal for residential and commercial installations, offering reliable and flexible lighting control. Its compatibility with a wide range of lamps makes it a versatile solution for modern KNX systems.