The ABB SAH/S24.10.7.1 KNX Actuator is a compact, high-density combi switch/shutter actuator for ABB i-bus® KNX building automation. A single DIN-rail module delivers 24 independent relay outputs at 10 A per channel, making it one of the most space-efficient options for centralized lighting, socket, and shading control in hotels, offices, schools, hospitals, and premium residential projects.

Install on standard 35 mm DIN rail (MDRC). The actuator is powered entirely from the KNX bus (TP) — no auxiliary supply — which simplifies panel wiring and reduces component count in the distribution board.

Key Features and Technical Highlights

The SAH/S24.10.7.1 combines maximum channel density with flexible output mapping, so integrators can mix switching and shutter control without adding extra hardware.

High-Density, Versatile Outputs

• 24 independent outputs: Electromechanical relays for up to 24 separate electrical loads on 230 V AC.
• 10 A rated current: Up to 1200 W switching power per output (AC-1 — resistive or slightly inductive loads; not suitable for C-load capacitive switching).
• Combi functionality: Use outputs individually for ON/OFF switching of lighting circuits, socket outlets, ventilation, or pumps — or pair them (12 shutter channels) for 230 V AC roller shutter and blind drives without electromechanical interlocking.
• Flexible mapping: Any combination of single-switch and paired shutter channels within the 24 outputs.

Control, Diagnostics, and Reliability

• Manual operation: Local override buttons on the device; central disable or lock via KNX for maintenance or security.
• Status indication: 12 LEDs plus contact position feedback (ON/OFF) for clear field diagnostics.
• Bus-powered: No separate 230 V or 24 V auxiliary required for the KNX electronics.
• Power loss: Approximately 9 W — factor into KNX power supply sizing on large lines.

At a Glance

Specification	Detail
Product type	Combi switch/shutter actuator
Order code	SAH/S24.10.7.1 (2CDG110249R0011)
Outputs	24-fold — 24 independent relays
Rated current	10 A per output
Output voltage	230 V AC
Mounting	DIN rail MDRC, 12M (210 mm wide)
Protection	IP20
Bus system	KNX twisted pair (TP)

Full dimensional, environmental, and classification data — including ETIM EC001097 and EAN 4016779066839 — are listed under Technical Specifications.

Applications and KNX Integration

When panel space and channel count matter, the SAH/S24.10.7.1 reduces the number of actuator modules needed per floor or villa wing.

• Commercial and institutional: Centralized lighting and blinds from one MDRC position — ideal for open-plan offices, classrooms, and healthcare wards.
• Luxury residential: One module can serve multiple rooms, minimizing cabinet depth and cable routing complexity.
• ETS configuration: Import the official .knxprod application (see Downloads), assign group addresses, scenes, schedules, central commands, and priority logic alongside ABB KNX sensors, push buttons, and visualisation.
• Project documentation: Data sheet, connection diagram, dimensional drawing, CAD, EPLAN, and installation manual are available under Downloads for planning and tender specifications.

Choosing 6 A vs 10 A in the SAH/S24 Series

ABB offers the same 24-channel combi platform at 6 A (SAH/S24.6.7.1) and 10 A (this model). Select SAH/S24.10.7.1 when circuits require higher load headroom — for example larger lighting groups, selected socket circuits, or heavier shutter motors within AC-1 limits. For standard lighting and typical blind loads, the 6 A variant may offer a lower power-loss profile while preserving the same 24-output density.