Woehrle alimentatore trifase DP2420 a commutazione primaria stretto ingresso wide range

Industrial control systems demand reliable DC power, yet many power supplies struggle with fluctuating three-phase inputs or harsh environments. The Woehrle DP2420 solves this with a primary-switched design that accepts a wide 340–550V AC input, delivering a stable 24V DC output at up to 20A. Its compact, narrow housing saves space on crowded DIN rails, while convection cooling ensures silent, maintenance-free operation.

Who is it for

This power supply is built for automation engineers, panel builders, and maintenance technicians who need dependable power for PLCs, sensors, actuators, and other 24V industrial equipment. It suits applications in manufacturing, process control, and infrastructure where three-phase power is available and reliability is non-negotiable.

Main features

• Wide-range three-phase input: 340–550V AC, 47–63Hz, for global compatibility and resilience to voltage fluctuations.
• High efficiency >93% reduces energy waste and heat generation, lowering cooling costs.
• Adjustable output voltage (22–28V DC) to compensate for voltage drops in long cable runs.
• Robust protection: overload, short circuit, overvoltage, and overtemperature safeguards protect both supply and load.
• Parallel operation capability for redundancy or increased power, ensuring system uptime.
• DIN rail mountable with compact narrow design, ideal for space-constrained control cabinets.
• Convection cooled (no fan) for silent operation and reduced dust ingress, extending service life.
• Certified to CE and UL 508, meeting international safety standards.

Specifications

• Input voltage: 3x 340–550V AC (wide-range)
• Input frequency: 47–63 Hz
• Output voltage: 24V DC (adjustable 22–28V)
• Output current: 20A
• Output power: 480W
• Efficiency: >93%
• Ripple & noise: <50mVpp
• Hold-up time: >20ms at nominal load
• Protection class: IP20
• Operating temperature: -25°C to +70°C
• Mounting: DIN rail
• Cooling: Convection
• Protections: Overload, short circuit, overvoltage, overtemperature
• Parallel operation: Yes
• Certifications: CE, UL 508

Tips

For optimal performance, mount the DP2420 vertically with adequate clearance for convection airflow. Use appropriately sized wiring for the 20A output to minimize voltage drop. When connecting multiple units in parallel, set output voltages within 0.1V of each other to ensure balanced load sharing.