Description
Introduction
The theben RM 4 H KNX (SKU 4940212) is a 4-way high-performance switching actuator engineered for demanding control tasks within KNX building automation systems. Built with Module FIX1 design for standard DIN rail installation, this actuator integrates bistable relays that deliver robust switching performance across four independent channels. This device is part of our KNX Actuators products range.
Designed to handle heavy electrical loads, the RM 4 H KNX accommodates switching contacts rated at 25 A and 16 A with an exceptional inrush current tolerance of up to 1200 A for 200 µs. Operating with a low bus current consumption of under 10 mA, it provides an energy-efficient switching solution for modern residential and commercial installations.
Key Features
- 4 independent high-performance switching channels with bistable relays.
- Rated switching contacts for 25 A and 16 A operations.
- Inrush current protection up to max. 1200 A / 200 µs.
- Protection class II compliant with EN 60 669 standard.
- Low KNX bus current draw under 10 mA.
- Terminal screw connection for power cables and standard KNX bus terminal.
- Flexible wiring support up to 6 mm² solid wire or 4 mm² stranded wire with end sleeves.
Benefits
- High load handling capability with contact ratings supporting up to 25 A and resistive loads up to 4800 W.
- Superior inrush current capacity of max. 1200 A / 200 µs to safely handle high surge loads.
- Energy-efficient design incorporating bistable switching relays and low KNX bus voltage current (<10 mA).
- Optimized LED drive capability supporting up to 850 W for higher wattage LED lamps.
- Compact DIN rail form factor with a 4-module width footprint for straightforward cabinet integration.
Technical Specifications
Applications
- High-capacity switching of LED lighting circuits and energy-saving lamps in KNX automated projects.
- Heavy-duty switching control for resistive loads up to 4800 W per channel in commercial distribution boards.
Installation Notes
- Mount the module onto a standard DIN rail inside the distribution board adhering to 4-module width spacing.
- Connect load circuits using terminal screws supporting solid wire (0.5 mm² to 6 mm²) or stranded wire with end sleeve (0.5 mm² to 4 mm²), and connect the system to the KNX line using the dedicated KNX bus terminal.
Developer Resources
- theben RM 4 H KNX Data Sheet (PDF)
- theben RM 4 H KNX Technical Handbook (PDF)
- EU Declaration of Conformity (PDF)
- Information Notice EU Data Act (PDF)
FAQ
What is the maximum inrush current supported by the RM 4 H KNX?
The actuator supports a peak inrush current of up to 1200 A for a duration of 200 µs. Explore more theben building automation products for professional building automation projects.
How many modules does this actuator occupy on a DIN rail?
The RM 4 H KNX is a Module FIX1 device with a width rating of 4 modules. For certificates and current technical files, refer to the official theben documentation.
What cable cross-sections are allowed for load connections?
It accepts solid wire from 0.5 mm² (Ø 0.8) to 6 mm² and stranded wire with end sleeves from 0.5 mm² to 4 mm² via terminal screws.
What is the exact product model?
The order/model code for this page is 4940212. 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 4 H KNX (4940212) delivers reliable, high-capacity 4-channel switching performance designed for modern KNX building management systems. Its high inrush current tolerance and robust bistable relays make it a dependable choice for switching high-power loads and LED circuits. Installers and system integrators can review our become a KNX dealer options.
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