ABB SA/S4.10.2.2 KNX Switching Actuator, 4-Channel, 10 A, DIN Rail 2CDG110258R0011

The ABB SA/S4.10.2.2 is a KNX switching actuator with four independent channels, each rated at 10 A for switching resistive, inductive, and capacitive loads up to 230 V AC. It is designed for DIN rail mounting in electrical distribution boards and integrates directly into KNX bus systems for intelligent building control.

Advantages

Each channel can be manually operated via push buttons on the device, allowing direct testing and commissioning without bus communication. The actuator supports logic functions and status feedback, enabling flexible automation scenarios. Its compact 4-module width saves space in distribution boards.

Suitable for

• Switching lighting circuits in residential and commercial buildings
• Controlling heating valves, fans, and other electrical loads
• Integrating with KNX building management systems

Key specifications

• Number of channels: 4
• Rated current per channel: 10 A
• Rated voltage: 230 V AC
• Bus system: KNX (21-30 V DC)
• Mounting: DIN rail (MDRC), 4 modules wide
• Switching capacity: 2300 W incandescent/halogen, 1000 VA fluorescent
• Manual operation: Yes, with push buttons
• Status feedback and logic functions: Yes
• Protection degree: IP20
• Operating temperature: -5 to +45 °C

Recommendations

For reliable switching of mixed loads in KNX installations, combine with ABB power supplies and line couplers. Ensure proper derating for inductive loads and use external contactors for high inrush currents.