ABB ST/K1.2 Electromotor Valve Drive (2CDG120092R0011)

Description

Introduction

The ABB ST/K1.2 Electromotor Valve Drive (Product ID: 2CDG120092R0011) provides precise motorized control for heating and cooling valves in KNX Twisted Pair (TP) network installations. Featuring an integrated bus coupler and full support for KNX Data Secure, this drive offers reliable and encrypted communication across room automation systems. This device is part of our KNX Actuators range.

Equipped with an integrated room temperature controller and internal temperature sensor, the ST/K1.2 delivers up to 220 N of actuating force and a maximum valve stroke of 8 mm. Its built-in expansion inputs—including two digital binary inputs and one analog input—allow local integration of presence detectors, window contacts, push-buttons, and external sensors directly into the KNX architecture.

Key Features

• Supports KNX Data Secure protocol over KNX TP bus system.
• Integrated KNX Bus Coupler for direct bus line connection.
• Delivers up to 220 N actuating force with max 8 mm valve stroke.
• Integrated room temperature controller and integrated temperature sensor.
• Includes 2 digital binary inputs and 1 analog input (0 … 10 V / 4 … 20 mA).
• Automatic valve adaptation mechanism for seamless valve pairing.
• IP21 degree of protection and battery-free design.
• Supplied with valve adapters for M30x1.5 and Danfoss RA -VA 10 & VA 100.

Benefits

• Enhanced Security with KNX Data Secure: Protects valve control communications against unauthorized access and tampering across the KNX TP bus.
• Integrated Room Temperature Control: Includes an internal temperature sensor and embedded room temperature controller, eliminating the need for standalone thermostat hardware in targeted zones.
• Versatile Input Options: Features 2 universal binary inputs for push-buttons, window contacts, or presence detectors, plus 1 analog input supporting 0…10 V or 4…20 mA signals.
• High Performance Actuating Mechanics: Provides an actuating force up to 220 N and an 8 mm maximum valve stroke, suitable for precise regulation of heating and cooling circuits.
• Simplified Installation & Adaptability: Supports automatic valve adaptation and includes standard adapters for M30x1.5 and Danfoss RA-VA 10 & VA 100 valve body types.

Technical Specifications

Specification	Value
Extended Product Type	ST/K1.2
Product ID	2CDG120092R0011
Display Name	ST/K1.2
Instructions and Manuals	2CDG941273P0001
Number of Digital Inputs	2
Number of Inputs	Analog (0 … 10 V / 4 … 20 mA) 1
Manual Operation	No
Number of Batteries	0
E-Number (Norway)	4544707
Declaration of Conformity – CE	9AKK108469A4251
EAN	4053546160185
Building Information Modeling – BIM	9AKK108464A0933
Catalog Description	ST/K1.2 Electromotor Valve Drive
Manufacturer Description	The Electromotor Valve Drive KNX ST/K1.2 provides precise control for heating and cooling valves, ensuring secure communication through KNX Data Secure. It is equipped with an integrated temperature sensor and an integrated room temperature controller. It delivers a high actuati…
Security Standard	KNX Data Secure
Degree of Protection	IP21
Compatible Bus Systems	KNX (TP)
Product Range	KNX
EPLAN Data	9AKK108464A1080
E-Number (Finland)	2815743
E-Number (Switzerland)	405710205
WEEE B2C / B2B	Business To Consumer
ETIM 9	EC000792 – Actuating drive for bus system
ETIM 10	EC000792 – Actuating drive for bus system
Wiring Diagram	9AKK108464A0800

Applications

• Precise individual room temperature regulation for heating and cooling valves in modern KNX building automation projects.
• Zone control implementations utilizing local binary inputs for window position monitoring, motion detection, and external sensor feedback.

Installation Notes

• Mount onto compatible valve bodies using the included M30x1.5 or Danfoss RA -VA 10 & VA 100 adapters, leveraging the automatic valve adaptation feature.
• Connect directly to the KNX TP bus using the integrated bus coupler; ensure proper field wiring for binary inputs and the 0…10 V / 4…20 mA analog input.
• Verify IP21 enclosure rating requirements and note that the device does not feature manual operation controls or require batteries.

Developer Resources

• Instructions and Manuals: 2CDG941273P0001
• Building Information Modeling (BIM) Data: 9AKK108464A0933
• EPLAN Technical Data: 9AKK108464A1080
• CE Declaration of Conformity: 9AKK108469A4251

FAQ

Does the ABB ST/K1.2 require a separate bus coupler?

No, the ST/K1.2 features an integrated bus coupler for direct connection to the KNX TP bus. Explore more ABB KNX solutions for professional building automation projects.

What security standard does the ST/K1.2 support?

The device fully supports KNX Data Secure for encrypted communication over the KNX network. For certificates and current technical files, refer to the manufacturer technical documentation.

Which valve adapters are included with the ST/K1.2?

It comes supplied with two adapters for M30x1.5 and Danfoss RA -VA 10 & VA 100 valve types.

What local inputs are provided on the unit?

The drive includes 2 digital binary inputs (supporting window contacts, push-buttons, presence detectors, or external temperature sensors) and 1 analog input (0…10 V / 4…20 mA).

What is the exact product model?

The order/model code for this page is ST/K1.2. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by ABB.

Conclusion

The ABB ST/K1.2 Electromotor Valve Drive delivers secure, high-force heating and cooling valve control with built-in room temperature regulation and flexible sensor inputs. Installers and system integrators can review our professional project support options.

With its integrated bus coupler, KNX Data Secure integration, and automatic valve adaptation, it provides system integrators with an efficient solution for KNX room automation.