Description
HDL 22-Channel Hotel-Room Mixed Control Module, exact manufacturer model HDL-MHMIX22.232.
Function and integration
20 relay channels and 2 MOSFET trailing-edge dimming outputs. This module uses HDL’s hotel-room Inner Bus architecture with a compatible hotel host; it is not a general-purpose standalone KNX actuator or a drop-in substitute for standard Buspro controllers. DIN-rail mounting, approx. 144 × 90 × 64 mm.
Installation and purchasing restrictions
- Only for compatible professionally installed HDL systems; confirm protocol, wiring, relay loads, overcurrent protection and electrical conformity before specification.
- Not a plug-and-play device and not a universal Wi-Fi/Zigbee/Matter controller.
- Supplier stock, 65% reseller discount applicability, shipping, customs and final delivered price to Spain have not been confirmed.
- Published catalogue listing for enquiries only; checkout and purchasing remain disabled until separate commercial and technical QA.
Photo from the matching model’s official HDL Automation manufacturer product page. Price reference: HDL Buspro Price List REV4 October 2026, exact model HDL-MHMIX22.232.
Three additional exact-model HDL MHMIX22.232 Buspro hotel room controller photos show its front terminals, DIN-rail housing, and side manufacturer’s label. Photo source: HDL Automation manufacturer product gallery. Verify exact hardware revision, regional compatibility and supplied accessories before procurement.




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