The Magna-Power TSD40-500/480 is a 20 kW programmable DC power supply engineered for high-current industrial and laboratory test applications. Operating from 480 VAC, three-phase input at 50/60 Hz, it delivers 0–40 VDC at 0–500 ADC with current-fed power processing topology optimized for reliability and precision. Programming accuracy of ±0.075% on voltage and current ensures tight load regulation, while 2 ms load transient recovery supports dynamic test sequences. The unit mounts in standard 8U rack enclosures for ATE integration and includes built-in soft-start, programmable over-voltage and over-current protection, distributed thermal monitoring, and mechanical line disconnect via embedded AC contactor. Remote control via isolated 37-pin user I/O supports IVI and LabVIEW drivers with full VI libraries. Optional GPIB IEEE-488 communications and virtual front-panel software enable command exploration and SCPI-queryable fault diagnostics. Air cooling is standard; water cooling available for enhanced thermal performance.
Technical Specifications
• Output: 0–40 VDC, 0–500 ADC (20 kW total)
• Input: 480 VAC, three-phase, 50/60 Hz
• Programming Accuracy: ±0.075% voltage and current
• Load Transient Recovery: 2 ms (50–100% step)
• Power Processing: Current-fed topology
• Enclosure: 8U rack-mount
– Key Features
• Programmable over-voltage and over-current trip points
• Multiple distributed thermal switches with over-temperature protection
• Program-line over-voltage detection and control integrity monitoring
• 5V interlock input for dry-contact inhibition and E-stop capability
• Front-panel status display; faults queryable via SCPI and 5V digital outputs
• Low ripple output characteristic of TS Series
– Control & Integration
• Isolated 37-pin user I/O for computer control
• IVI driver and NI LabVIEW support with example programs
• Remote interface software: virtual front panel, command panel, register panel
• Optional GPIB IEEE-488 communications
– Cooling & Physical
• Air-cooled standard; optional water cooling
• Streamlined for Automated Test Equipment rack integration

















