Theben JU 1 S RF KNX Flush-Mounted 1-Way Blind Actuator (4941651)

Description

Introduction

The Theben JU 1 S RF KNX (SKU: 4941651) is a compact, flush-mounted 1-channel blind actuator designed for wireless KNX RF networks with KNX Data Secure encryption. Operating on a mains voltage of 230 V AC – 240 V AC at 50 Hz – 60 Hz, this device offers a 5 A switching capacity for precise local control of motorized sun protection and ventilation systems. This device is part of our KNX system components range.

Engineered as a Protection Class II base module, the unit incorporates 2 binary inputs suitable for floating contacts such as push-buttons, switches, or an external temperature sensor (I2). As the direct successor to the previous 4941650 (JU 1 RF KNX) model, it delivers secure, modern wireless integration for KNX building automation projects.

Key Features

• 1-channel output rated for 5 A drives.
• KNX RF wireless communication protocol with Data Secure support.
• Operating voltage: 230 V AC – 240 V AC at 50 Hz – 60 Hz.
• 2 binary inputs for floating contacts (switches, buttons, temperature sensor I2).
• Flush-mounted installation with screw terminal connections.
• Protection Class II rated base module.
• Successor to item 4941650 (JU 1 RF KNX).

Benefits

• KNX RF Data Secure Encryption: Provides secure, tamper-proof wireless communication across the KNX network.
• Integrated Binary Inputs: Equipped with 2 inputs for potential-free switches, push-buttons, or a temperature sensor (I2).
• Compact Flush-Mounted Form Factor: Designed for effortless installation behind switches or in flush conduit boxes using robust screw terminals.
• Direct Predecessor Upgrade: Serves as the updated direct replacement for the legacy 4941650 (JU 1 RF KNX) actuator.
• Reliable Drive Control: Rated for 5 A to safely control single-channel motorized shading and ventilation mechanisms.

Technical Specifications

Specification	Value
Operating voltage KNX	Bus voltage
Operating voltage	230 V AC – 240 V AC, 50 Hz – 60 Hz
Frequency	50 – 60 Hz
Installation type	Flush-mounted
Type of connection	Screw terminals
Type	Base module
Number of channels	1
Protection class	II
Hand book	PDF
Information Notice EU Data Act	PDF
CE declaration of conformity	PDF
Data sheet	PDF
Predecessor	4941650, JU 1 RF KNX
KNX-Database (Single Product)	ZIP
KNX-Database (all products)	ZIP
Operating instructions	PDF

Applications

• Control of motorized drives for window blinds, roller blinds, and sun or vision protection devices.
• Automated positioning for skylights and ventilation flaps.
• Integration of local mechanical switches, buttons, or temperature sensors into a KNX RF system via binary inputs.

Installation Notes

• Requires flush-mounted placement using screw terminals; ensure compliance with 230 V AC – 240 V AC supply requirements.
• Connect only floating (potential-free) contacts or supported temperature sensors to the 2 binary inputs.
• Download the official ETS database files (single or full catalog ZIP) and handbook for system commissioning.

Developer Resources

• KNX-Database (Single Product) ZIP file for ETS configuration.
• KNX-Database (All Products) complete ZIP database.
• Technical Data Sheet, Operating Instructions, and Handbook PDF files.
• CE Declaration of Conformity and EU Data Act Information Notice PDF documentation.

FAQ

What is the switching current rating for the Theben JU 1 S RF KNX?

The actuator features a 1-channel output rated for 5 A to control shade, blind, or flap drives. Explore more theben automation devices for professional building automation projects.

Does the actuator support encrypted wireless KNX communication?

Yes, it utilizes the KNX RF Data Secure protocol for encrypted, secure wireless communication. For certificates and current technical files, refer to the manufacturer technical documentation.

What can be connected to the binary inputs?

The 2 binary inputs are designed for floating contacts, such as standard push-buttons, switches, or an external temperature sensor (I2).

Which model does the JU 1 S RF KNX replace?

It is the direct successor to the legacy model 4941650 (JU 1 RF KNX).

What is the exact product model?

The order/model code for this page is 4941651. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The Theben JU 1 S RF KNX (4941651) provides a compact, secure, and versatile flush-mounted solution for controlling 1-channel motorized blinds, shades, and ventilation flaps over KNX RF Data Secure. Installers and system integrators can review our KNX dealer program options.