Switching Extension 24x10A

Overview

The SAE-2410 is a high-capacity 24-channel switching extension module for the Elausys Universal KNX Actuator System. Designed to expand the MSA-810 master actuator, this extension delivers three times the channel capacity of the standard SAE-810 in a space-efficient 9SU enclosure, making it the optimal choice for commercial buildings, hotels, and large residential projects requiring extensive switching or shutter control through a single KNX interface.

Technical Capabilities

The SAE-2410 provides 24 independent relay channels (A through X) for driving 230VAC electrical loads. Each channel delivers up to 10A for resistive loads, with relay contacts rated for 10 million mechanical operations ensuring long-term reliability in demanding commercial applications. The extension draws power internally from the connected MSA-810 master, eliminating the need for separate power connections.

Channel configuration is fully flexible through ETS: each output operates as an independent switching actuator, or consecutive channel pairs can be combined for shutter or blind motor control with separate up/down phases. All channel functions inherit the advanced capabilities of the MSA-810 master, including time functions (switch-on/off delays, minimum ON/OFF duration), staircase lighting with pre-warning, scene storage, blocking functions, and operation hour counters with maintenance warnings.

In ETS, the SAE-2410 is configured as three consecutive extension slots using the "Switch Actuator 24-fold" type: the first extension controls channels A-H, the second covers channels I-P, and the third manages channels Q-X. This architecture provides full per-channel configuration flexibility while maintaining a logical grouping structure.

Installation and Configuration

The SAE-2410 mounts directly on standard 35mm DIN rail, occupying 9 space units (9SU). Installation involves sliding the extension onto the rail adjacent to the MSA-810 master (or another extension) and connecting via the provided side connector on the right side of the master module. No additional wiring is required for the extension connection itself.

Load connections use screw terminals accepting up to 2.5mm2 wire with 0.5Nm torque. Each channel has dedicated L (phase input) and arrow (switched output) terminals. CB-10 bridges can be used to distribute a common phase across multiple channels, simplifying wiring in installations where many channels share the same circuit breaker.

In ETS5 or ETS6, select the extension type "Switch Actuator 24-fold" in the MSA-810 application to enable the SAE-2410 channels. The master automatically recognizes connected extensions during the addressing sequence. Refer to the MSA-810 User Manual for detailed configuration of switching and shutter functions.

Applications

Commercial Lighting Control: Office buildings, retail spaces, and educational facilities benefit from centralized control of 24 lighting circuits through a single extension module. Zone-based switching, scene integration, and time-based automation enable energy-efficient operation.

Hotel and Hospitality: Control room lighting, corridor circuits, and common area illumination across multiple floors. The high channel density reduces cabinet space requirements and simplifies system documentation.

Shutter and Blind Installations: Configure channel pairs as shutter controllers for motorized blinds, shutters, or awnings. A single SAE-2410 can manage up to 12 shutter motors, providing comprehensive facade automation for medium to large buildings.

Industrial and Warehouse: High-bay lighting, loading dock doors, and equipment control benefit from the robust 10A relay outputs and extensive channel count.

Compatibility and Integration

The SAE-2410 requires the MSA-810 master actuator to operate and cannot function as a standalone device. Up to 8 extension modules of any type can connect to a single master, enabling systems with up to 72 total channels controlled through one KNX interface.

A combined limit of 40 channels at 10A applies across the MSA-810, SAE-810, and SAE-2410 products on any single master to respect total current capacity (32A maximum per actuator assembly). For installations requiring additional 10A capacity beyond this limit, deploy a second MSA-810 master system or use SAE-816 extensions for channels requiring higher current ratings.

The SAE-2410 integrates seamlessly with the complete Elausys extension ecosystem including HAE-805 heating extensions, DAE-225 dimming extensions, DBE-64 DALI extensions, and AAE-410 analog output extensions. CB-10 and CB-15 connection bridges simplify phase distribution across multiple channels.