MEAN WELL KNX Switched Mode | DIN Rail Power Supply 264Vac, 280Vdc AC/DC Input 30Vdc, 1.28A Output DC 38.4W
Specifications
SKU
KNX-40E-1280
Details
The MEAN WELL KNX-40E-1280 is a 38.4W AC/DC DIN-rail power supply designed explicitly for KNX / EIB building automation systems. It powers intelligent control networks for lighting, climate, and security systems.
Key Technical Specifications
- Output Voltage: 30Vdc with an integrated choke/filter.
- Output Current: 1280mA (1.28A), suitable for larger bus installations (up to 256 devices via TP1-256).
- Input Voltage: 180Vac to 264Vac (473Hz).
- Form Factor: Compact DIN-rail mount measuring 4SU width (72mm).
- Ancillary Power: Features an additional secondary output for powering auxiliary sensors and devices.
Operational Features
- Safety & Protections: Designed with Safety Extra Low Voltage (SELV) outputs, integrated short-circuit, overload, and overvoltage protections.
- Diagnostic Models: The variant labeled KNX-40E-1280D features advanced diagnostic and telemetry tracking. It monitors bus traffic load, device temperature, and exact output parameters directly through the ETS Application Database.
- Physical Controls: Includes a dedicated reset button to restart the local bus link (20-second cycle)
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