theben RM 16 S KNX 16-way Switching Actuator (4940225)

Description

Introduction

The theben RM 16 S KNX (Item no. 4940225) is a high-performance 16-way switching actuator designed for professional building automation environments. Engineered for integration into KNX system topologies, this FIX2 series device provides high-density switching capabilities across 16 independent channels. This device is part of our professional KNX Actuators range.

Featuring individual LED switching status displays for every channel and built-in manual control that operates even without a bus connection, the RM 16 S KNX gives electrical contractors and system integrators convenience during commissioning, maintenance, and daily operations.

Key Features

• 16-channel FIX2 switching actuator for KNX automation systems.
• Operates on KNX bus voltage (≤4 mA) with mains supply voltage of 110 V AC – 240 V AC at 50/60 Hz.
• Relay outputs equipped with NO contacts rated at 16 A / 3 A.
• Accommodates high switching capacity up to 3680 W resistive load and 2000 W incandescent/halogen load.
• Supports LED lighting loads up to 55 W (< 2 W) and 600 W (2-8 W or > 8 W).
• Generous terminal capacity for solid conductors up to 6 mm² and stranded conductors with ferrules up to 4 mm².

Benefits

• Provides 16 independent switching channels within a single compact module for high-density installation.
• Integrated LED status indicators for each channel allow instant visual checking of output status.
• Supports full manual local operation directly on the device, enabling functionality testing without an active bus line.
• Handles high peak inrush currents up to 800 A / 200 µs for reliable switching of demanding loads.
• Low standby power consumption of approximately 0.5 W supports building energy efficiency goals.
• Broad load compatibility across incandescent, halogen, fluorescent, and LED lighting sources.

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	~0.5 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	16
Type of contact	NO contact, 16 A, 3 A
Resistive load	3680
Protection class	II
Information Notice EU Data Act	PDF
CE declaration of conformity	PDF

Applications

• Centralized lighting switching control across commercial facilities, office buildings, and institutional spaces.
• High-density load switching in residential KNX smart home distribution boards.

Installation Notes

• Connect to the KNX bus line ensuring bus current requirements (≤4 mA) are respected.
• Ensure main supply wiring matches specified operating voltage range of 110 V AC – 240 V AC at 50/60 Hz.
• Observe conductor terminal limits: solid wire 0.5 mm² (Ø 0.8) to 6 mm², or stranded wire with end sleeve 0.5 mm² to 4 mm².

Developer Resources

• Official product data sheet and documentation available directly via the manufacturer website.
• CE declaration of conformity and Information Notice EU Data Act available in PDF format.

FAQ

Can the theben RM 16 S KNX be operated without an active KNX bus connection?

Yes, manual operation is supported directly on the device, allowing manual channel toggling even if the bus connection is absent. Explore more theben KNX products for professional building automation projects.

What is the maximum LED load capability of the RM 16 S KNX?

The device 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 above 8 W. For certificates and current technical files, refer to the manufacturer technical documentation.

What is the maximum cable size accepted by the wiring terminals?

The terminals accept solid conductors from 0.5 mm² (Ø 0.8) up to 6 mm², and stranded wires 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 4940225. 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 RM 16 S KNX (4940225) 16-way switching actuator offers an efficient, robust solution for central load control in KNX automation networks. With its high load ratings, clear LED status feedback, and manual local override features, it serves as a dependable choice for technical integrators. Installers and system integrators can review our installer purchasing support options.