theben RMG 4 I KNX 4-Way C Load Switching Actuator (4930210)

Description

Introduction

The theben RMG 4 I KNX (Item no. 4930210) is a high-performance 4-way C load switching actuator designed for advanced KNX building automation systems. Belonging to the proven MIX2 series, this actuator is engineered to manage high lamp loads and substantial inrush currents while providing precise current recognition across all four channels. This device is part of our KNX system devices range.

Operating on a standard KNX bus voltage (≤4 mA) alongside a main supply voltage of 110 V AC to 240 V AC at 50 Hz to 60 Hz, the unit delivers reliable load control for professional installations. Its integrated current detection capability allows system integrators to implement effective load monitoring and diagnostic routines in commercial and residential facilities.

Key Features

• 4 output channels equipped with NO contacts rated for 16 A and 10 A.
• Current measurement accuracy of ± 8 % for currents > 1 A and ± 100 mA for currents < 1 A.
• Minimum measurable current threshold down to 150 mA.
• High capacitive switching capacity rating up to 200 µF.
• Supports resistive switching loads up to 3680 W.
• Part of the modular theben MIX2 actuator series.

Benefits

• Safely handles high peak electrical inrush currents up to a maximum of 1500 A / 200 µs.
• Integrated current recognition enables real-time monitoring and fault detection per output channel.
• Versatile load support covering LED, fluorescent, energy-saving, incandescent, and halogen lamps.
• Low stand-by power consumption of approximately 1.3 W for enhanced system efficiency.
• Accommodates flexible conductor sizes up to 6 mm² solid wire and 4 mm² stranded wire.

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
Incandescent/halogen lamp load	2600 W
Fluorescent lamp load (conventional) parallel-corrected	2000 W (200 µF)
Fluorescent lamp load (electronic ballast)	1650 W
Energy saving lamps	410 W
LED lamp < 2 W	75 W
LED lamp 2-8 W	850 W
LED lamp > 8 W	850 W
Inrush current	max. 1500 A / 200 µs
Voltage output	240 V AC
Accuracy current measurement	I > 1 A: ± 8 % of measured value; I < 1 A: ± 100 mA; lowest measurable value: 150 mA
Stand-by consumption	~1.3 W
Capacity loss max.	2.4 W
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	4
Type of contact	NO contact, 16 A, 10 A
Resistive load	3680 W
Capacitive load	200 µF

Applications

• Switching and monitoring higher capacitive and inductive lighting loads, including LED drivers and electronic ballasts.
• Current detection and operational verification in automated commercial building lighting circuits.
• Centralized load control and automation in institutional, office, or high-end residential KNX systems.

Installation Notes

• Verify mains operating voltage is within the specified 110 V AC to 240 V AC range at 50/60 Hz prior to energizing.
• Connect to the KNX bus line ensuring current consumption remains within the rated ≤4 mA limit.
• Adhere strictly to terminal wire cross-section constraints: 0.5 mm² to 6 mm² for solid conductors, or 0.5 mm² to 4 mm² for stranded wires with end sleeves.

FAQ

What is the maximum inrush current capacity of the theben RMG 4 I KNX?

The actuator is rated to withstand a maximum peak inrush current of 1500 A for up to 200 µs. Explore more theben building automation products for professional building automation projects.

What is the accuracy of the built-in current measurement?

For load currents above 1 A, accuracy is ± 8 % of the measured value. For currents under 1 A, accuracy is ± 100 mA, with a minimum measurable threshold of 150 mA. For certificates and current technical files, refer to the manufacturer technical documentation.

How many channels does the device provide?

The theben RMG 4 I KNX features 4 independent C load switching channels.

What wire sizes are supported by the terminal connectors?

The terminals accept solid wire from 0.5 mm² (Ø 0.8) up to 6 mm², and stranded wire with end sleeves from 0.5 mm² up to 4 mm².

What is the exact product model?

The order/model code for this page is 4930210. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The theben RMG 4 I KNX (4930210) provides high-capacity C load switching and integrated current recognition in a compact 4-channel MIX2 design. Installers and system integrators can review our installer purchasing support options.

Its ability to manage 1500 A inrush currents and monitor channel activity makes it an excellent choice for modern KNX lighting and switching installations.