Multi Extension Air

The Loxone Multi Extension Air features 8 dry contact latching relay outputs, 12 digital inputs, a 1-wire interface and 4 PWM outputs to control RGBW LEDs.

The connection to the Miniserver is via the Loxone Air wireless interface.

Datasheet Multi Extension Air

Table of Contents


The Multi Extension Air is installed on a DIN rail in a suitable enclosure.

For thermal reasons the total load rating must not exceed 48A (IEC) or 45A (UL).
The Multi Extension Air uses latching relays. Relays of this type can remain in the ON position even when the device is disconnected from power.


In delivery state, pairing mode will be active after the power supply has been established. This is indicated by the status LED flashing red/green/orange.

Then follow the pairing procedure

To activate the pairing mode manually, hold down the pairing button for at least 5 seconds after establishing power supply.


The digital inputs can also be used as frequency meters. This allows for pulse counters such as electricity or gas meters to be connected. Since the counted pulses are only transmitted once per minute, the Multi Extension is not suitable for the connection of pulse output wind sensors.

The PWM output can be set to Standard, Smart Actuator (for dimming LED lighting) or PWM control signal in the actuator type properties. The analogue value of the outputs (0-100%) is pulse width modulated.

Safety shutdown: If the CPU temperature rises above 80°C / 176°F, the digital outputs are switched off. As soon as the temperature has dropped below 65°C / 149°F, the outputs are reactivated. The temperature value is updated on restart and when the temperature changes by 5°C / 9°F.

1-wire Interface

1-Wire sensors can be connected to the 1-Wire interface of the device.
More about this in the Documentation of the 1-Wire Extension, the properties of the interface are identical.


Summary Unit Value Range
Input 1 Digital 0/1
Input 2 Digital 0/1
Input 3 Digital 0/1
Input 4 Digital 0/1
Input 5 Digital 0/1
Input 6 Digital 0/1
Input 7 Digital 0/1
Input 8 Digital 0/1
Input 9 Digital 0/1
Input 10 Digital 0/1
Input 11 Digital 0/1
Input 12 Digital 0/1


Summary Description Unit Value Range
Smart actuator RGBW Smart actuator -
Relay 1 Digital 0/1
Relay 2 Digital 0/1
Relay 3 Digital 0/1
Relay 4 Digital 0/1
Relay 5 Digital 0/1
Relay 6 Digital 0/1
Relay 7 Digital 0/1
Relay 8 Digital 0/1

Diagnostic Inputs

Summary Description Unit Value Range
Online Status Multi Extension Air Digital 0/1
System temperature °
Temperature Shutdown If the CPU temperature reaches a critical point, the outputs of the device are switched off. This can be due to short-circuits, overloaded switching loads or too high an ambient temperature. Digital 0/1


Summary Description Default Value
Monitor Online Status When selected, you will be notified via System Status or the Mailer if the device is no longer available or goes offline. -
Serial Number Serial number of the Air device -
Device type Air device type -
Actuator Type Use device with Standard Actuator(s) or Smart Actuator(s)
Smart Actuators support dynamic fade times and can only be used with the Lighting Controller.

Safety Instructions

The installation must be carried out by a qualified technician in accordance with all applicable regulations.

The installation requires a suitable enclosure to ensure protection against contact, water and dust.

The device must not be used as part of safety-critical systems.


Datasheet Multi Extension Air

Datasheet Relay