The ABB SAH/S24.6.7.1 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 6 A per channel, making it one of the most space-efficient options for centralized lighting 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/S24.6.7.1 stands out with its high channel density and versatile configuration options, making it a powerful foundation for any KNX installation where standard lighting and blind loads dominate.
High-Density, Versatile Outputs
- 24 independent outputs: Electromechanical relays for up to 24 separate electrical loads on 230 V AC.
- 6 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: The ABB SAH/S24.6.7.1 KNX Actuator is fully powered by the KNX bus and does not require an auxiliary voltage.
- Power loss: Approximately 7.5 W — lower than the 10 A variant, which helps on KNX lines with many bus-powered devices.
At a Glance
| Specification | Detail |
| Product type | Combi switch/shutter actuator |
| Order code | SAH/S24.6.7.1 (2CDG110246R0011) |
| Outputs | 24-fold — 24 independent relays |
| Rated current | 6 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 4013614552540 — are listed under Technical Specifications.
Applications and KNX Integration
The compact size and high channel count make the SAH/S24.6.7.1 an optimal choice for complex projects where space is limited and centralized control is essential.
- Commercial and institutional: Control hundreds of lights and blinds from a central distribution board — ideal for large office floors, schools, and hospitals.
- Luxury residential: Simplify the electrical cabinet in large smart homes; one module handles lighting and shading for multiple rooms.
- ETS configuration: Import the official .knxprod application (see Downloads), assign group addresses, scenes, schedules, central commands, and priority logic alongside all ABB i-bus® KNX devices.
- 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 (this model) and 10 A (SAH/S24.10.7.1). Select SAH/S24.6.7.1 for standard lighting circuits, typical blind motors, and projects where lower bus power consumption matters. Choose the 10 A variant when individual circuits need higher sustained current within AC-1 limits.