AA/S 2.1.2 ABB i-bus KNX Analogue Actuator 2-Fold Surface-Mount 0-10V Bus-Powered Valve/Damper Module

The ABB i-bus KNX AA/S 2.1.2 is a two-channel analogue actuator from the i-bus output range, supplied as a complete device in a surface-mounted housing (SM). It converts KNX telegrams into 0...10 V DC control signals, forming the interface between the bus system and continuous actuators in HVAC plant.

Since the unit is powered directly from the KNX line, no auxiliary voltage terminal is required, simplifying wiring in retrofit, decentralised and small-panel installations. Parameters are configured in ETS, and the ABB i-bus Tool can be used for diagnostics and documenting analogue output values.

Order code: 2CDG110203R0011, light grey, 0.26 kg.

• Bus system / protocol: KNX TP1 (twisted pair), S-Mode
• Analogue outputs: 2 channels, 0...10 V DC
• Supply: bus-powered from the KNX line, no auxiliary supply
• Status indication: 1 LED
• Power loss: 0.3 W total
• Manual operation: none
• Ambient temperature: -20...+70 °C
• Degree of protection: IP54, suitable for damp plant areas
• Housing / dimensions: surface-mounted complete device, 117 x 117 x 51 mm, light grey
• Certifications: CE, RoHS, REACH, KNX certified

Typical applications include valve and damper positioning in fan coil units, compact air handling sections, and boiler rooms with limited panel space. Also suitable for pressure-independent VAV control wherever two analogue outputs are sufficient and a wide temperature range or higher IP rating is required.