Woehrle alimentatore switching 24VDC DPNSW2420-R20A Rel. 3ph 340-550VAC 43

Delivering a robust 480W output with active PFC and over 93% efficiency, this Woehrle 3-phase switching power supply converts 340–550VAC industrial mains to a stable 24VDC at 20A. Built for demanding automation and control cabinets, it ensures reliable power even in harsh electrical environments.

Overview

The Woehrle DPNSW2420-R20A is a high-performance DIN rail power supply engineered for three-phase industrial applications. With a wide input range of 340–550VAC, it accommodates common 400V and 480V mains, making it suitable for global deployment. The unit provides a regulated 24VDC output with a continuous current rating of 20A, ideal for powering PLCs, sensors, actuators, and other 24V loads.

What stands out

• Active Power Factor Correction (PFC) minimizes harmonic distortion and improves energy efficiency.
• High efficiency (>93%) reduces heat generation and lowers operating costs.
• Comprehensive protection: overload, short circuit, overvoltage, and overtemperature safeguards ensure long service life.
• DC-OK relay contact and LED indicators provide clear status monitoring for preventive maintenance.
• Convection cooling eliminates fan noise and moving parts, enhancing reliability in dusty environments.
• Wide operating temperature range from -25°C to +70°C allows use in extreme conditions.
• Compact metal housing with screw terminals for secure and easy wiring.

Technical details

• Input voltage: 340–550VAC, 3-phase
• Input frequency: 50/60Hz
• Output voltage: 24VDC
• Output current: 20A
• Output power: 480W
• Ripple and noise: <100mVpp
• Efficiency: >93%
• Power factor correction: Active
• Protection: Overload, short circuit, overvoltage, overtemperature
• Mounting: DIN rail
• Connection: Screw terminals
• Status indication: DC-OK relay contact, LED indicators
• Cooling: Convection
• Operating temperature: -25°C to +70°C
• Certifications: CE, UL (or equivalent)
• Housing material: Metal

Our verdict

A rugged and efficient power solution for industrial automation, the Woehrle DPNSW2420-R20A delivers consistent 24VDC power with advanced protection and monitoring features. Its wide input range and high efficiency make it a dependable choice for mission-critical applications.