Description
Introduction
The theben JMG 4 T 24V KNX (SKU 4930260) is a 4-way 24V blind actuator designed for integration within KNX building automation systems. Functioning as a MIX2 base module, this unit offers four independent channels and can be upgraded to a maximum of 12 channels using extension modules, providing flexibility for system integrators and electrical installers. This device is part of our KNX Actuators range.

Engineered for DIN rail installation, the module operates on a mains supply voltage of 110 V AC to 240 V AC at 50–60 Hz with a bus voltage operating current of approximately 4 mA. Featuring potential-free changeover contact outputs rated for 6 A at 24 V DC, it delivers precise control while maintaining a low standby consumption of approximately 0.3 W.
Key Features
- 4-way blind actuator operating at 24V DC.
- MIX2 base module capability, expandable to up to 12 channels.
- Mains operating voltage from 110 V AC to 240 V AC (50–60 Hz).
- KNX bus current consumption of approximately 4 mA.
- Output changeover contacts with 6 A switching capacity at 24 V DC.
- IP 20 protection rating and Protection Class II according to EN 60 730-1.
- Terminal screw connections supporting up to 6 mm² solid wire or 4 mm² stranded wire with end sleeves.
- Operating ambient temperature range from -5°C to +45°C.
Benefits
- Modular scalability through the MIX2 base module system, enabling expansion up to 12 channels.
- Energy-efficient performance with a low standby power consumption of approximately 0.3 W.
- Versatile 4-channel control designed specifically for 24V blind and drive applications.
- High switching capacity of 6 A at 24 V DC with potential-free outputs for SELV applications.
- Compact DIN rail mounting design (4 modules width) for standard panel installations.
Technical Specifications
Applications
- Commercial and residential KNX installations requiring controlled 24V motor drives for blinds.
- Modular DIN rail distribution boards looking for expandable channel density via MIX2 architecture.
Installation Notes
- Mount the unit on a standard DIN rail in an enclosure providing an IP 20 rating or suitable environment.
- Ensure terminal screw wiring complies with cable cross-section limits: solid wire 0.5 mm² (Ø 0.8) to 6 mm², or stranded wire with end sleeve 0.5 mm² to 4 mm².
- Connect the KNX bus line using the standard KNX bus connection terminal.
- Verify potential-free output conditions and ensure SELV criteria are met across the entire unit when switching SELV circuits.
Developer Resources
- Data sheet (PDF)
- CE declaration of conformity (PDF)
- Information Notice EU Data Act (PDF)
- Operating instructions (PDF)
- Hand book (ZIP)
FAQ
How many channels does the theben JMG 4 T 24V KNX base module support?
The base unit includes 4 independent channels and can be expanded up to a maximum of 12 channels using MIX2 extension modules. Explore more products from theben for professional building automation projects.
What is the switching capacity of the outputs?
The changeover contact outputs feature a switching capacity of 6 A at 24 V DC. For certificates and current technical files, refer to the official theben product page.
What is the operating voltage range for this module?
The unit operates on 110 V AC to 240 V AC (50–60 Hz) mains voltage along with standard KNX bus power (~4 mA).
What is the exact product model?
The order/model code for this page is 4930260. 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 JMG 4 T 24V KNX (4930260) provides a reliable, scalable solution for 24V blind control in professional KNX installations. Its MIX2 base architecture, low standby consumption, and robust 6 A output specification make it a practical choice for modern building automation projects. Installers and system integrators can review our become a KNX dealer options.








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