Woehrle virtalähde kolmivaiheinen DF2420 verkkolaite jousiliittimillä teho 20

For industrial control systems that demand a stable 24V DC bus from a three-phase mains, the Woehrle DF2420 stands apart with its robust metal housing, spring-cage wiring, and high efficiency. Unlike single-phase units that struggle with load balancing, this 480W supply draws from 3x 380-480V AC, delivering clean power to PLCs, drives, and sensors in demanding environments.

Highlights

• Three-phase input 380-480V AC, 50/60 Hz, for balanced load and reduced harmonics
• Adjustable output 22-28V DC, factory set 24V, rated 20A continuous (480W)
• Spring-cage terminals for fast, vibration-resistant wiring without ferrules
• DIN rail mountable (TS35) with natural convection cooling – no fan, no noise
• Comprehensive protection: overload, short circuit, overvoltage, overtemperature
• High efficiency >92% and MTBF >500,000 hours for long service life
• CE certified, operating range -25°C to +70°C

In daily use

Installation is straightforward: snap the unit onto a standard 35mm DIN rail, connect the three phases and PE to the input terminals, and wire the 24V output to your load. The spring-cage mechanism grips conductors securely, saving time during commissioning and reducing maintenance calls due to loose connections. The output voltage can be fine-tuned between 22V and 28V to compensate for cable voltage drop or to match specific device requirements. With ripple and noise below 50mVpp, sensitive electronics receive clean power. The metal enclosure provides mechanical strength and aids heat dissipation, allowing operation up to 70°C without derating.

Full specifications

• Input voltage: 3x 380-480V AC (three-phase)
• Input frequency: 50/60 Hz
• Output voltage: 24V DC (adjustable 22-28V DC)
• Output current: 20A
• Output power: 480W
• Efficiency: >92%
• Ripple & noise: <50mVpp
• Connection type: Spring-cage terminals
• Mounting: DIN rail TS35
• Protection: Overload, short circuit, overvoltage, overtemperature
• Insulation voltage (input-output): 3.75 kV AC
• Operating temperature: -25°C to +70°C
• Cooling: Natural convection
• MTBF: >500,000 hours
• Certifications: CE
• Housing material: Metal

Final note

Choose the Woehrle DF2420 for a reliable, efficient three-phase power solution that simplifies wiring and withstands harsh industrial conditions.