ABB SU/S30.640.2 KNX Power Supply 640 mA

The ABB SU/S30.640.2 is a high-performance KNX power supply unit designed for reliable bus voltage supply in building automation systems. With an output current of 640 mA, it provides ample power for multiple KNX devices on a single bus line. The integrated choke ensures stable communication, while the DIN rail mounting (4 modules) simplifies installation in distribution boards.

Advantages

This power supply offers exceptional efficiency (>80%) and comprehensive protection features including short-circuit, overload, and overvoltage protection. The bus reset function via push button facilitates easy maintenance and troubleshooting. LED indicators for operation, bus voltage, and overload provide clear status at a glance.

Suitable for

• KNX building automation systems
• Smart home and commercial building control
• Integration with ABB i-bus KNX components

Key specifications

• Input voltage: 100-240 V AC, 50/60 Hz
• Output voltage (KNX bus): 30 V DC
• Output current: 640 mA
• Auxiliary output: 30 V DC, 640 mA (shared)
• Mounting: DIN rail, 4 modules
• Protection: IP20
• Operating temperature: -5 to +45 °C

Recommendations

For optimal performance, use with ABB KNX bus devices and ensure proper ventilation. The power supply is designed for indoor use only.