The TDK-Lambda GEN 20-250 is a 5000W programmable DC power supply delivering 20Vdc at 250A output. Built on the Genesys platform, it combines high efficiency with flexible control via analog, resistor, and 16-bit digital programming. Designed for industrial, laboratory, and embedded applications, the unit operates from three-phase AC input (342–528Vac, 47–63Hz depending on configuration) and achieves 86–91% efficiency with 0.94 power factor. Voltage ripple noise measures 0.01Vrms across 5Hz–1MHz; current ripple remains below 1Arms. The GEN 20-250 supports manual front-panel adjustment, remote programming, and integrated safety functions including overvoltage protection and foldback control. Multiple communication interfaces—RS-232, RS-485, and optional LAN, GPIB, USB, EtherCAT, Modbus-TCP, and EtherNet/IP—enable seamless integration into automated test systems and distributed control environments. Status indicators provide real-time monitoring of output voltage, current, and operating mode.
## Technical Specifications
• Output: 20Vdc at 250A (5000W); adjustable 0–20Vdc, 0–250A
• Input: 3-phase AC, 47–63Hz; voltage ranges 342–460Vac, 342–528Vac, or 432–528Vac depending on model variant
• Efficiency: 86% typical, 91% typical
• Power Factor: 0.94 @ 200–380VAC
• Ripple & Noise: 0.01Vrms voltage, 0.3–1Arms current (5Hz–1MHz)
• Programming Resolution: 16-bit digital (voltage and current); analog 0–5V or 0–10V (user selectable)
• Output Monitoring: 0–5V or 0–10V with ±1% accuracy
• Display: 4-digit voltage and current readouts, ±0.5% of rated value ±1 count
## Key Features
• Dual-encoder manual adjustment with coarse and fine modes
• Resistor programming: 0–5kΩ or 0–10kΩ full-scale (user selectable)
• Automatic re-start and safe-start modes
• Last-setting memory and foldback CV-to-CC control
• Mode indicators: CV/CC and Local/Remote (open collector outputs)
• Front-panel lockout capability
## Interfaces
• Standard: RS-232, RS-485
• Optional: LAN (LXI), GPIB (IEEE488.2 SCPI), USB, isolated analog I/O, EtherCAT, Modbus-TCP, EtherNet/IP
## Physical
• Configuration: 2U or 1U rack-mount/benchtop
• Width: 423mm (16.65in)
