MTN645094 Schneider KNX Fan Coil Actuator REG-K 3-Speed Valve Control DIN Rail HVAC Room Unit Driver
The MTN645094 is a DIN-rail control instrument from the Schneider Electric SpaceLogic KNX catalogue, designed to provide precise, silent, and long-lasting actuation for lighting and shading networks. This module interprets bus telegrams into graduated control signals, enabling designers to create light scenes, ramp intensities, and protect expensive lamp equipment from harsh switching.
Within its compact thermoplastic housing, dedicated control electronics are paired with generously rated power stages that tolerate the inrush characteristics of switched-mode LED drivers and electronic transformers. Commissioning is performed through the standard ETS engineering tool, where each channel exposes comprehensive parameters including minimum brightness, soft-start time, and bus-failure response.
The front face maintains accessible programming push-button and manual override controls, allowing technicians to operate loads even before the bus network is active. Manufactured under ISO-certified processes with eco-conscious materials, the device carries full conformity documentation for simplified export to regulated markets across the Middle East, Europe, and Asia.
| Feature | Detail |
|---|---|
| Part Number | MTN645094 |
| Device Role | Fan Coil Actuator REG-K 3-Speed |
| Control Protocol | KNX TP1 S-Mode |
| Channel Layout | 3-speed fan outputs plus valve channels |
| Power Stage Rating | 230 V AC fan-speed contacts and valve drive |
| Bus Feed | 21-30 V DC SELV from KNX line; consumption per data sheet variant |
| Mains Compatibility | 50/60 Hz networks; isolated load side |
| Dimming Principle | Phase-cut control engineered for resistive, inductive, and capacitive loads |
| Protection Features | Overtemperature cutoff, short-circuit resilient output stages |
| Manual Provision | Manual override; heating/cooling changeover input |
| Enclosure | DIN rail TH35 mounting per EN 60715; grey or white per variant |
| Climate Rating | -5°C to +45°C ambient; IP20 when installed |
| Connection | Screwless or screw terminals accepting 0.5-4 mm² conductors |
| Approvals | CE, RoHS, REACH, KNX certified, Schneider Green Premium profile |
| Engineering Support | ETS application programs with scene, logic, and timer modules |
A purpose-built REG-K actuator designed to drive three-speed fan-coil units in hotel rooms and offices. It sequences fan speed with thermal valve commands to maintain stable and quiet room temperature, while its changeover input automatically adapts between heating and cooling seasons, reducing energy waste in year-round climates.
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