The Mean Well KNX-20E-640 is a dedicated KNX/EIB DIN rail power supply designed for intelligent building automation and KNX bus systems. It delivers a stable 30V DC output with a rated current of 640mA and a total output power of 19.2W, making it suitable for powering KNX devices in smart home and building automation networks.
The KNX-20E-640 features an integrated KNX bus choke output and an additional auxiliary DC output for ancillary power applications. Its compact 3SU (52.5mm) wide DIN rail design allows efficient installation inside distribution boards and automation cabinets.
Designed specifically for KNX building automation environments, the unit supports a universal input range of 180–264VAC and provides high efficiency up to 86%. The fanless free air convection cooling system ensures silent and maintenance-free operation for continuous use in commercial and residential automation systems.
The power supply includes LED indicators for normal operation, overload condition, and KNX bus reset status. Built-in protection features include short circuit, overload, and overvoltage protection for reliable and safe system performance. The KNX-20E-640 complies with KNX standards and is ideal for smart building infrastructure applications.
Technical Specifications
- Model: KNX-20E-640
- Product Type: KNX / EIB Power Supply
- Output Voltage: 30V DC
- Rated Output Current: 640mA
- Rated Output Power: 19.2W
- Input Voltage Range: 180–264VAC / 230–370VDC
- Efficiency: Up to 86%
- Mounting Type: DIN Rail TS-35
- Width: 52.5mm (3SU)
- Cooling Method: Free air convection
- Operating Temperature: -30°C to +70°C
- IP Rating: IP20
- Protection Features:
- Short circuit protection
- Overload protection
- Overvoltage protection
- Special Features:
- Integrated KNX bus choke
- Auxiliary DC output
- LED status indicators
- KNX bus reset function
Applications
- KNX smart home systems
- Building automation
- Lighting control systems
- HVAC automation
- Security and monitoring systems
- Energy management systems
- Smart building infrastructure
- Industrial and commercial KNX projects in UAE
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