AA/S4.1.2 ABB i-bus KNX Analogue Actuator 4-Fold MDRC 0-10V or 0(4)-20mA HVAC Valve and VAV Module
The ABB i-bus KNX AA/S 4.1.2 is a four-channel analogue actuator in a modular DIN-rail housing (MDRC). It converts KNX telegrams into industry-standard analogue output signals, creating a direct electrical interface between the bus installation and third-party HVAC hardware.
Each of the four outputs can be parameterised for 0...10 V DC voltage control or for 0(4)...20 mA current control, enabling proportional positioning of continuous actuators such as valve drives, damper motors, VAV terminal units and electronic fan controllers.
Commissioning is performed with ETS, while the ABB i-bus Tool adds parameter diagnosis and faster start-up on site.
EAN: 4016779962377
Color: Light grey
Weight: 0.165 kg
| Feature | Specification |
|---|---|
| Bus system / protocol | KNX TP1 (twisted pair), S-Mode, bus terminal on the device |
| Analogue outputs | 4 channels, 0...10 V DC or 0(4)...20 mA |
| Maximum output current | 20 mA per channel |
| Auxiliary supply | 110...240 V AC |
| Power loss | 0.8 W total |
| Manual operation | None (fully bus controlled) |
| Enclosure | IP20, light grey, indoor installation |
| Dimensions | 4 MW, 70 x 90 x 63.5 mm |
| Certifications | CE, RoHS 2011/65/EU, REACH, KNX certified |
Suited to plant rooms, AHU control panels, laboratories and industrial buildings, this module provides direct KNX network control for:
- Chilled and heating coil valves
- Supply and exhaust air dampers
- VAV boxes
- Analogue speed setpoints for EC fans
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.