Akubela KXAC-B1R8A16 8-Channel 16A KNX Switch Actuator

Akubela KXAC-B1R8A16 8-Channel 16A KNX Switch Actuator

The Akubela KXAC-B1R8A16 is a DIN rail-mounted KNX switch actuator built for controlling eight independent electrical circuits from a single compact module. Designed for integration into commercial and residential KNX automation networks, it combines robust 16A relay switching with onboard logic and scheduling intelligence, letting installers manage lighting, socket outlets, ventilation, pumps and other AC loads directly from the KNX bus without extra controllers.

Key Features

• 8 independent relay channels, each rated up to 16A at 230V for a wide range of resistive and general AC loads
• Output rating up to 250V/440VAC at 50/60Hz, with a maximum combined load of 3680W
• Low bus power draw of under 0.6W, drawing less than 20mA from a standard 21–30VDC KNX bus supply
• On-device manual override buttons for each channel, useful for testing and commissioning without a KNX controller
• Built-in staircase lighting function with adjustable delay timers for automatic switch-off
• Power-off memory retains the last output state after a mains interruption, restoring circuits automatically once power returns
• Onboard logic gate functions (AND, OR, XOR) for combining sensor and switch inputs into custom automation rules
• Scene recall and real-time status feedback for every channel, supporting integration with KNX visualisation and scheduling software
• Compact 144 × 90 × 64mm housing for standard 35mm DIN rail enclosures, rated for -5°C to 45°C operation

Typical Applications

This actuator suits electricians and system integrators fitting out KNX-enabled homes, apartments, offices and light commercial spaces where multiple lighting circuits, powerpoints or small motor loads need centralised, programmable control. Because each of the eight channels operates independently with its own timing, logic and manual control, the KXAC-B1R8A16 works well in distribution boards serving open-plan lighting zones, staircases and corridors, communal building services, or mixed load switchboards where reliability and simple KNX commissioning matter as much as raw switching capacity.

What's in the Box

• 1 x Akubela KXAC-B1R8A16 8-Channel 16A KNX Switch Actuator
• DIN rail mounting clip (integrated)
• KNX bus connection terminal
• Quick start / installation reference guide

Frequently Asked Questions

Does this actuator need a separate power supply?
It is powered from the KNX bus itself for its control electronics, while the eight relay outputs switch mains-level AC loads supplied separately through the DIN rail wiring.

Can channels be controlled manually without the KNX bus?
Yes, each of the eight channels has an on-device manual control button so installers can switch loads directly during testing or in the event of a bus fault.

What happens to the outputs if there is a power outage?
The built-in power-off memory function stores each channel's last state and automatically restores it once mains power returns.