theben HU 1 S RF KNX Flush-Mounted Heating Actuator – 4941641

Description

Introduction

The theben HU 1 S RF KNX (Item no. 4941641) is a high-performance flush-mounted 1-way heating actuator designed for modern KNX wireless building automation systems. Supporting KNX RF Data Secure communication, this base module provides encrypted and reliable transmission for intelligent heating control. This device is part of our KNX system devices range.

Equipped with an integrated controller and two binary inputs for floating contacts (such as buttons, switches, or an I2 temperature sensor), this actuator enables efficient decentralized HVAC integration. It replaces the predecessor model 4941640 (HU 1 RF KNX) with upgraded wireless security capabilities.

Key Features

• Flush-mounted 1-way heating actuator base module.
• KNX RF wireless transmission with Data Secure support.
• Integrated room temperature controller.
• 2 binary inputs for floating contacts (buttons, switches, temperature sensor I2).
• Operates on 230 V AC operating voltage (50 Hz – 60 Hz).
• KNX operating current draw of <4 mA.
• Ambient temperature operating range of -5°C to 45°C.
• Direct successor to model 4941640 (HU 1 RF KNX).

Benefits

• Encrypted Wireless Communication: Integrates KNX RF Data Secure technology to protect automation telegrams against unauthorized interception.
• Integrated Heating Control: Features an onboard controller paired with a 1-way output for precise room temperature management.
• Flexible Binary Inputs: Features 2 inputs for floating contacts, enabling direct attachment of push buttons, switches, or external temperature sensors (I2).
• Space-Saving Form Factor: Compact flush-mounted base module installation allows easy placement inside standard electrical boxes.
• Energy-Efficient Design: Delivers minimal stand-by energy consumption of less than 0.4 W and low KNX bus current draw under 4 mA.

Technical Specifications

Specification	Value
Operating Voltage KNX	Bus voltage, <4 mA
Operating Voltage	230 V AC, 50 Hz – 60 Hz
Frequency	50 – 60 Hz
Stand-by Consumption	<0.4 W
Number of Channels	1
Type of Contact	1
Handbook	PDF
Information Notice EU Data Act	PDF
CE Declaration of Conformity	PDF
Data Sheet	PDF
Installation Type	Flush-mounted
Type	Base module
Ambient Temperature	-5°C … 45°C
Operating Instructions	PDF
Predecessor	4941640, HU 1 RF KNX
KNX-Database (Single Product)	ZIP
KNX-Database (All Products)	ZIP

Applications

• Decentralized Heating Control: Direct management of individual thermal actuators and heating circuits using KNX RF without additional bus cabling.
• Smart Building Retrofits: Ideal for expanding existing HVAC automation systems using secure wireless KNX communication and flush-mounted fittings.
• Multi-Function Room Interface: Connection of wall switches, buttons, or room temperature sensors directly to the actuator’s binary inputs.

Installation Notes

• Flush-Mounted Fitting: Position the base module inside suitable flush-mounted junction boxes with adequate clearance for wiring.
• Mains & Bus Wiring: Connect the primary 230 V AC (50-60 Hz) supply and observe safe wiring practices alongside KNX bus connections (<4 mA).
• Binary Input Connection: Wire floating contacts or the designated I2 temperature sensor directly to the integrated binary inputs.
• Temperature Considerations: Verify that the mounting site stays within the certified ambient operating range of -5°C to 45°C.

Developer Resources

• KNX-Database (Single Product) ZIP file
• KNX-Database (All Products) ZIP file
• Product Data Sheet (PDF)
• Operating Instructions (PDF)
• Handbook (PDF)
• CE Declaration of Conformity (PDF)
• EU Data Act Information Notice (PDF)

FAQ

What is the primary application of the theben HU 1 S RF KNX?

It is a flush-mounted 1-way heating actuator with an integrated controller and KNX RF Data Secure wireless capabilities, designed for controlling room heating circuits. Explore more products from theben for professional building automation projects.

What can be connected to the two binary inputs?

The 2 binary inputs are designed for floating contacts, allowing connection of conventional buttons, switches, or an external temperature sensor on input I2. For certificates and current technical files, refer to the official product documentation.

Which model does the theben 4941641 replace?

This unit is the direct successor to model 4941640 (HU 1 RF KNX).

What are the electrical operating parameters for this actuator?

It operates on a mains supply voltage of 230 V AC (50-60 Hz) with a stand-by consumption under 0.4 W and a KNX bus current consumption of under 4 mA.

What is the exact product model?

The order/model code for this page is 4941641. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The theben HU 1 S RF KNX (4941641) offers a secure, compact, and effective solution for decentralized KNX heating control. With its integrated controller, binary input options, and KNX RF Data Secure encryption, it provides reliable HVAC performance for modern automated environments. Installers and system integrators can review our dealer and project support options.