78.2K.1.230.3000 Finder power supplies 230V

Why Choose the Finder 78.2K.1.230.3000 KNX Power Supply?

The Finder 78.2K.1.230.3000 is a dedicated KNX switch mode power supply designed to provide a stable 30 V DC SELV output for KNX bus installations in building automation and intelligent electrical control systems. As part of the Finder 78 Series, it provides up to 640 mA of bus current and incorporates diagnostic indication and electrical protection for dependable KNX operation.

Designed specifically for KNX installations, the 78.2K.1.230.3000 operates from a nominal 230–240 V AC, 50/60 Hz supply, with an operating range of 185–260 V AC. Its regulated KNX bus output is nominally 30 V DC, with an operating output range of approximately 29–31 V DC.

The power supply incorporates dedicated KNX bus connectors together with three diagnostic LEDs for rapid visual status monitoring. A green LED indicates correct DC output, while red and yellow indicators provide warning of overload, overtemperature and overvoltage conditions. Its compact DIN rail format makes it suitable for installation within building automation distribution boards and electrical control cabinets.

Key Advantages

• Dedicated KNX bus switch mode power supply.
• 30 V DC SELV output specifically designed for KNX installations.
• Provides up to 640 mA output current.
• Nominal 230–240 V AC input supply.
• Wide operating input range of 185–260 V AC.
• Integrated thermal, overload and short-circuit protection.
• Three diagnostic LEDs simplify operating status and fault identification.
• Dedicated KNX bus connection terminals simplify system integration.
• Compatible with ETS 4 and later versions.
• Standard 35 mm DIN rail mounting for electrical cabinets and distribution boards.

Key Features

• Finder 78 Series KNX power supply.
• 30 V DC nominal KNX bus output.
• 29–31 V DC output range.
• 640 mA maximum output current.
• 230–240 V AC nominal input.
• 185–260 V AC operating input range.
• 50/60 Hz supply frequency.
• Approximately 1.45 W standby power consumption at 230 V AC.
• Integrated KNX bus connection.
• Green DC OK diagnostic LED.
• Red overload and overtemperature diagnostic LED.
• Yellow overvoltage diagnostic LED.
• Integrated thermal protection.
• Integrated overload protection.
• Integrated short-circuit protection.
• IP20 degree of protection.
• Suitable for ETS 4 or later.
• Mounting on standard 35 mm DIN rail to EN 60715.

Reliable Power for KNX Building Automation

KNX installations require a dedicated SELV power supply to energise the bus and allow connected sensors, actuators, controllers and user interfaces to communicate reliably. The Finder 78.2K.1.230.3000 provides the required 30 V DC KNX bus supply with up to 640 mA of available current for building automation networks.

Integrated diagnostic LEDs make system commissioning and troubleshooting easier by providing immediate indication of normal DC operation, overload, excessive temperature and overvoltage conditions. Combined with thermal, overload and short-circuit protection, the 78.2K provides a robust power source for professional KNX building control installations.

Typical Applications

• KNX building automation systems.
• Smart building electrical installations.
• KNX lighting control networks.
• Heating, ventilation and air-conditioning control.
• Automated blind and shutter systems.
• Building energy management systems.
• KNX sensors, actuators and control devices.
• Commercial building automation.
• Residential smart home installations.
• Industrial and infrastructure building control systems.