Switching actuator Satel KNX-SA24 8 channels DIN rail-mounted 3680 W

The Satel KNX-SA24 is a DIN rail-mounted switching actuator with 8 independent channels, designed for KNX-based smart home and building automation systems. It converts KNX telegrams from sensors and controllers into concrete switching actions for electrical loads such as lighting and ventilation. The module operates from a 230 V AC supply and provides relay outputs capable of handling typical household and commercial loads, while its compact housing (92 mm wide, 60 mm deep, 70 mm high) fits standard distribution boards.

Advantages

The KNX-SA24 offers eight relay outputs configurable as separate logical channels, enabling flexible control of multiple circuits from a single DIN rail device. Its compatibility with KNX telegrams ensures reliable integration with sensors, switches and automation scenes. The module’s rated switching capacity supports a wide range of electrical devices, and the compact form factor reduces space requirements in electrical cabinets. Designed for DIN rail mounting, it simplifies installation and maintenance in residential and commercial setups.

Suitable for

• Switching and controlling lighting circuits in homes and buildings
• Controlling ventilation fans and extractors
• Integration into KNX automation scenes and logic
• Centralised control of multiple electrical loads within a distribution board

Key specifications

• Number of channels: 8 independent relay outputs
• Input voltage: 230 V AC
• Maximum switching capacity: up to 3680 W total
• Mounting: DIN rail (standard rail profile)
• Dimensions: 92 mm (W) × 60 mm (D) × 70 mm (H)

How to use

Install the KNX-SA24 on a standard DIN rail inside the electrical distribution board and connect the device to the 230 V AC supply according to local electrical codes. Wire each relay output to the corresponding load (lighting circuit, fan, etc.) and configure logical channels in the KNX system using appropriate ETS tools or the integrator’s configuration workflow. After configuration, the module will receive KNX telegrams and switch outputs accordingly to execute on/off commands and automation scenes.

Recommendations

Ensure load currents and total connected wattage do not exceed the module’s rated switching capacity. Use proper circuit protection and comply with national wiring regulations. For safe commissioning and configuration within a KNX installation, involve a qualified electrician or certified KNX integrator.