Theben RMG 8 T KNX Switching/Blind Actuator

Description

Introduction

The Theben RMG 8 T KNX (Item no. 4930200) is a flexible 8-way switching or 4-way blind actuator designed for KNX smart building automation systems. Operating as a MIX2 base module, this unit offers centralized control over lighting circuits or motorized blinds in modern residential and commercial distribution panels. This device is part of our KNX automation components range.

Engineered for DIN rail mounting, the RMG 8 T KNX combines reliable load switching with modular expansion capabilities. It connects directly to the KNX bus with low current consumption (≤4 mA) and handles standard operating voltages between 110 V AC and 240 V AC, allowing system integrators to scale automation setups up to 24 channels using MIX2 extension modules.

Key Features

• 8 switching channels or 4 blind control channels
• MIX2 base module setup expandable up to 24 channels
• KNX bus operating voltage with ≤4 mA current consumption
• Mains operating voltage range of 110 V AC – 240 V AC (50 Hz – 60 Hz)
• Supports LED lighting loads up to 600 W (for lamps >2 W)
• DIN rail mounting format for standard distribution enclosures
• Normally Open (NO) contact type rated for 16 A and 3 A

Benefits

• Dual Output Functionality: Configurable as an 8-way switching actuator or a 4-way blind actuator to suit diverse project requirements.
• MIX2 System Expansion: Serves as a primary base module that can be upgraded up to a maximum of 24 channels using compatible MIX2 extension units.
• High Peak Current Resistance: Capable of handling maximum inrush currents up to 800 A / 200 µs for high-demand loads.
• Energy Efficient Design: Features a low standby power consumption of approximately 0.3 W.
• Broad Cable Accommodating Terminals: Accepts solid wire cross sections from 0.5 mm² to 6 mm² and stranded wire with end sleeves from 0.5 mm² to 4 mm².

Technical Specifications

Specification	Value
Operating voltage KNX	Bus voltage, ≤4 mA
Operating voltage	110 V AC – 240 V AC, 50 Hz – 60 Hz
Frequency	50 – 60 Hz
Fluorescent lamp load (conventional) parallel-corrected	1300 W (140 µF)
Fluorescent lamp load (conventional) not corrected	2000 VA
Fluorescent lamp load (electronic ballast)	1200
Energy saving lamps	300
LED lamp < 2 W	55
LED lamp 2-8 W	600
LED lamp > 8 W	600
Inrush current	max. 800 A / 200 µs
Voltage output	240 V AC
Stand-by consumption	~0.3 W
Capacity loss max.	6.4
Max. cable cross section	Solid wire: 0.5 mm² (Ø 0.8) to 6 mm² | Stranded wire with end sleeve: 0.5 mm² to 4 mm²
Number of channels	8
Type of contact	NO contact, 16 A, 3 A
Information Notice EU Data Act	PDF
Data sheet	PDF
Installation type	DIN rail

Applications

Lighting & Shading Automation: Provides control for switched lighting groups or motorized shading actuators across offices, public facilities, and high-end residential projects. Explore more theben building automation products for professional building automation projects.

Modular Control Cabinets: Integrates cleanly into standard DIN rail distribution cabinets where scalable switching capacity is needed.

Installation Notes

• Mount standardly on a 35 mm DIN rail inside a rated electrical enclosure or cabinet.
• Observe wire cross-section restrictions: solid conductors from 0.5 mm² (Ø 0.8) up to 6 mm², or stranded conductors with end sleeves from 0.5 mm² up to 4 mm².
• Ensure appropriate supply line wiring for 110 V AC – 240 V AC operating voltage and KNX bus connections before commissioning.

Developer Resources

• Official Product Data Sheet (PDF)
• Information Notice EU Data Act (PDF)

FAQ

How many outputs does the Theben RMG 8 T KNX provide?

It provides 8 switching channels or 4 blind channels natively, with the option to expand up to 24 channels using MIX2 extension modules. For certificates and current technical files, refer to the official theben product page.

What is the maximum LED lamp capacity supported by this unit?

The unit supports up to 55 W for LED lamps under 2 W, and up to 600 W for LED lamps rated between 2 W and 8 W or over 8 W.

What power supplies are required for operation?

It requires connection to the KNX bus line (consuming ≤4 mA) and an operating mains voltage of 110 V AC – 240 V AC at 50 Hz – 60 Hz.

What is the exact product model?

The order/model code for this page is 4930200. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Where can I find the official technical documentation?

Use the manufacturer product page and datasheets for this exact SKU. Always verify the latest revision before specifying the product.

Conclusion

The Theben RMG 8 T KNX (Item no. 4930200) delivers high efficiency, expansion flexibility, and solid switching capabilities for modern KNX automation projects. Its MIX2 base module architecture ensures that system designers can scale panel outputs seamlessly while keeping standby energy consumption minimal. Installers and system integrators can review our KNX dealer program options.