ABB VC/S4.2.1 Valve Drive Controller 4-fold MDRC (2CDG110217R0011)

Description

Introduction

The ABB VC/S4.2.1 (Product ID: 2CDG110217R0011) is a 4-fold Modular DIN Rail Component (MDRC) Valve Drive Controller designed for precision heating and cooling control in KNX (TP) building automation systems. Occupying 8 modular spacings, this device provides four independent channels engineered to control thermoelectric valve drives across various room HVAC applications, including radiators, floor heating systems, and cooling ceilings. This device is part of our KNX automation components range.

Each individual channel features its own electronic valve output, 3 inputs for status monitoring and sensor connectivity, and an integrated room temperature controller capable of driving output actuation directly. With support for manual operation and full compatibility with the ABB i-bus Tool for advanced diagnosis and commissioning, the VC/S4.2.1 provides a complete room-level climate control solution.

Key Features

• 4 independent channels for controlling thermoelectric valve drives in heating or cooling applications.
• 3 physical inputs per channel for status monitoring and analog control unit integration.
• Integrated room temperature controller built into each channel.
• Manual operation mode for local control and override.
• Compatible with KNX (TP) bus systems.
• Full support for ABB i-bus Tool diagnosis and commissioning.
• MDRC device with 8 modular spacings and IP20 degree of protection.

Benefits

• Integrated Room Temperature Control: Each of the 4 independent channels features its own room temperature controller to drive valve outputs directly.
• Comprehensive Sensor Connectivity: Includes 3 dedicated inputs per channel to monitor window contacts, dew point sensors, level sensors, or temperature sensors.
• Analog Unit Support: Enables connection of an analog room control unit (SAR/A or SAF/A) to the input channels.
• Local Manual Operation: Integrated manual operation allows direct override and testing on the device.
• Simplified Diagnostics: Supports the ABB i-bus Tool for fast commissioning and advanced system troubleshooting.
• Standardized Rail Mount: Compact MDRC format with 8 modular spacings fits standard distribution enclosures.

Technical Specifications

Specification	Value
Extended Product Type:	VC/S4.2.1
Product ID:	2CDG110217R0011
Customs Tariff Number:	85371091
E-Number (Sweden):	1739456
Declaration of Conformity – CE:	2CDK508251D2701
Instructions and Manuals:	2CDG941186P0002
EAN:	4016779011495
Package Level 1 EAN:	4016779011495
Ordering EAN	4016779011495 Customs Tariff Number: 85371091 Minimum Order Quantity: 1 piece E-Number (Switzerland): 405710115 E-Number (Finland): 2814566 E-Number (Sweden): 1739456
EAN	4016779011495 Customs Tariff Number: 85371091 Minimum Order Quantity: 1 piece E-Number (Switzerland): 405710115 E-Number (Finland): 2814566 E-Number (Sweden): 1739456
Container Information Package Level 1 Units	box 1 piece Package Level 1 EAN: 4016779011495 Package Level 1 Depth / Length: 149 mm Package Level 1 Height: 65 mm Package Level 1 Width: 92 mm Package Level 1 Gross Weight: 0.325 kg
Package Level 1 Units	box 1 piece Package Level 1 EAN: 4016779011495 Package Level 1 Depth / Length: 149 mm Package Level 1 Height: 65 mm Package Level 1 Width: 92 mm Package Level 1 Gross Weight: 0.325 kg
Catalog Description:	VC/S4.2.1 Valve Drive Controller, 4-fold, Manual Operation, MDRC
Long Description:	For the control of heating and cooling applications in the room, such as radiator, floor heating or cooling ceiling. The device has 4 channels each for the independent control of a heating or cooling application. Each channel has an electronic valve output for the control of a thermoelectric valve drive, as well as 3 inputs to detect and monitor the room status (use for window contact, dew point sensor, level sensor or temperature sensor). Also it is possible to connect one analog room control unit (SAR/A or SAF/A) to the inputs of each channel. Each channel has its own integrated room temperature controller for the control of the room temperature, which can be used directly to control the outputs of the device. The VC/S 4.2.1 features an easy to use manual operation. The device supports the ABB i-bus Tool for advanced diagnosis and improved commissioning.
E-Number (Switzerland):	405710115
E-Number (Finland):	2814566
Compatible Bus Systems:	KNX (TP)
Degree of Protection:	IP20
ETIM 7:	EC001586 – Heating actuator for bus system
ETIM 8:	EC001586 – Heating actuator for bus system
Minimum Order Quantity:	1 piece
Package Level 1 Units:	box 1 piece
Product Net Depth / Length:	63.5
Product Net Height:	90
Product Net Width:	140

Applications

• Individual room temperature control for heating systems using radiator or underfloor heating thermoelectric valves.
• Cooling ceiling regulation across up to 4 independent room zones.
• Room status and safety monitoring using window contacts, dew point sensors, level sensors, and temperature sensors.

Installation Notes

• Mount on a standard 35 mm DIN rail (MDRC) occupying 8 modular spacings inside an IP20 enclosure.
• Connect thermoelectric valve drives to electronic outputs and optional sensors or SAR/A / SAF/A control units to channel inputs.
• Follow full installation guidelines provided in ABB Instructions document 2CDG941186P0002.

Developer Resources

• Data Sheet & Technical Information: Document 2CDC508245D0211
• Instructions and Manuals: Document 2CDG941186P0002
• Declaration of Conformity – CE: Document 2CDK508251D2701
• Manufacturer Product Page: https://new.abb.com/products/en/2CDG110217R0011/vc-s4-2-1

FAQ

What type of outputs does the ABB VC/S4.2.1 feature?

The VC/S4.2.1 provides electronic valve outputs across 4 independent channels designed specifically to drive thermoelectric valve actuators. Explore more products from ABB for professional building automation projects.

Which sensors and control units can be connected to the inputs?

Each channel includes 3 inputs capable of reading window contacts, dew point sensors, level sensors, temperature sensors, or one analog room control unit (SAR/A or SAF/A). For certificates and current technical files, refer to the official product documentation.

Does each channel require an external room thermostat?

No, each channel has its own integrated room temperature controller which can directly command the device’s valve outputs.

How is the device diagnosed during commissioning?

The device supports the ABB i-bus Tool for advanced diagnostic functions, testing, and efficient commissioning.

What is the exact product model?

The order/model code for this page is VC/S4.2.1. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by ABB.

Conclusion

The ABB VC/S4.2.1 4-fold Valve Drive Controller delivers complete room climate management by combining valve control, sensor monitoring, and integrated temperature control into an 8-module MDRC unit. Installers and system integrators can review our become a KNX dealer options.

With support for the ABB i-bus Tool, local manual control, and KNX (TP) bus integration, it offers a robust solution for professional heating and cooling automation.