IO/S4.6.1.1 Product Description
The ABB IO/S4.6.1.1 is a high-reliability 4-channel binary I/O actuator of the ABB i-bus® KNX smart building control system, integrated with MDRC (Multi-Device Remote Control) functionality. Specialized in binary input and output control for smart building systems, it features 4 independent channels with 6A switching capacity per channel, supporting flexible ETS programming for custom linkage logic between input and output signals. As a core KNX bus device,IO/S4.6.1.1 bridges traditional physical switches/ sensors with electrical loads, enabling centralized and automated control of lighting, small appliances, and auxiliary equipment. With a compact DIN-rail mounting design, IP20 protection, and screwless KNX bus connection, it ensures easy installation and stable 24/7 operation in cabinet environments, making it an ideal binary control solution for commercial and residential smart building projects.
IO/S4.6.1.1 Technical Specifications
| Parameter |
Details |
| Model Number |
IO/S4.6.1.1 |
| Product Type |
ABB i-bus® KNX 4-fold binary I/O actuator (MDRC-enabled) |
| Channel Quantity |
4 independent binary input/output channels (programmable) |
| Max Switching Capacity |
6A per channel (230V AC, resistive load) |
| Input Signal Type |
Dry contact, floating contact (binary digital signal) |
| Output Signal Type |
Normally open (NO) relay output, binary switch control |
| Core Functions |
MDRC multi-device remote control, ETS programmable I/O linkage, bus-independent manual test |
| KNX Compatibility |
KNX TP1 (Twisted Pair), compliant with KNX 2.3 standard, ETS 5/6 programmable |
| Power Supply |
Dual power: KNX bus (21-32V DC) + Mains (85-265V AC/110-240V DC, 50/60Hz) |
| Power Consumption |
≤10mA (KNX bus); ≤5W (mains, full load) |
| Connection Mode |
Screwless KNX bus terminal; Screw terminals for load/sensor wiring (0.5-2.5mm² wire) |
| Protection Class |
IP20 (indoor cabinet installation) |
| Installation Type |
35mm standard DIN-rail mounted (4 division units, net width 72mm) |
| Operating Temperature |
-5°C to +45°C (ambient, no condensation, max humidity 93%) |
| Storage Temperature |
-25°C to +70°C |
| Dimensions (W×H×D) |
72mm × 90mm × 64.5mm (standard modular design) |
| Certifications |
CE, KNX BTL certified, RoHS compliant, IEC 61010-1 approved |
| Mechanical Life |
≥100,000 relay switching cycles per channel |
| Key Features |
4-channel independent control, 6A reliable switching, MDRC, ETS programmable linkage, compact DIN-rail design |
IO/S4.6.1.1Application Scenarios:
1. Commercial Office Buildings
IO/S4.6.1.1 ideal for open workspaces, meeting rooms and office corridors. Connects physical wall switches (binary input) with office lighting, ceiling fans and power sockets (binary output); supports ETS-programmed linkage such as "door open → light on" and "meeting mode → all sockets on", realizing automated and centralized load control to improve office efficiency.
2. Premium Residential & Smart Homes
IO/S4.6.1.1 applied in luxury villas, high-end apartments and gated communities. Links smart wall panels, motion sensors with household lighting, curtain motors, small kitchen appliances and garden irrigation systems; enables MDRC remote control and custom scene programming (e.g., "home mode → light on + curtain open"), meeting personalized smart living needs.
3. Retail & Hospitality Venues
IO/S4.6.1.1 suitable for retail stores, hotel lobbies and guest rooms. Connects customer flow sensors, door contact sensors with display lighting, showcase power and room service indicators; supports linkage logic like "guest check-in → room light/air conditioner on" and "store opening → all display lighting on", optimizing business service experience.
4. Public Facilities & Municipal Buildings
IO/S4.6.1.1 used in schools, hospitals, metro stations and parking lots. Bridges emergency call buttons, motion sensors with emergency lighting, exit signs and parking lot barrier motors; realizes "motion detected → parking lot light on" and "emergency call → indicator on" linkage, complying with public facility safety and energy-saving standards.
5. Light Industrial & Warehouse Facilities
IO/S4.6.1.1 perfect for light production workshops, logistics warehouses and distribution centers. Connects door limit sensors, occupancy sensors with workshop task lighting, warehouse zone lighting and exhaust fans; supports automated control such as "warehouse door open → exhaust fan on" and "no occupancy → light off", reducing energy waste and improving operational safety.
6. Mixed-Use Developments
IO/S4.6.1.1 serves as a core binary control module for KNX systems in mixed-use towers (commercial + residential). Unifies control of commercial area display lighting, residential area common area lighting and public facility auxiliary equipment; supports centralized management via building BMS and MDRC remote control for different zones, realizing integrated smart building control.