Ametek / Xantrex / Sorensen XFR 20-60 Programmable DC Power Supply

The Ametek/Xantrex/Sorensen XFR 20-60 is a 1200 W programmable DC power supply engineered for research, product development, and production testing environments. This single-output unit delivers 0–20 Vdc at 0–60 A with automatic CV/CC mode crossover, backed by soft switching technology that minimizes transients, improves efficiency, and reduces thermal load. The 1U rack-mountable chassis (19-inch standard) supports both benchtop and integrated system configurations, with stackable thermal design eliminating the need for inter-unit ventilation gaps.

Technical Specifications

• Output voltage: 0–20 Vdc


• Output current: 0–60 A


• Power output: 1200 W


• AC input: 190–264 VAC, 1-phase, 47–63 Hz


• Switching frequency: 78 kHz nominal (156 kHz output ripple)


• Efficiency: 84% typical at rated output Output Quality:


• Noise (0–20 MHz): 75 mV


• Ripple (rms): 9 mV


• Ripple (peak-to-peak): 500 mA


• Voltage drift (8 hours): 3 mV


• Current drift (8 hours): 30 mA


• Temperature coefficient: 1.2 mV/°C (voltage), 60 mA/°C (current) Operating Conditions:


• Temperature range: 0–50 °C (full power, no derating)


• Input current: 22.6 A at 208 VAC, 20.5 A at 230 VAC typical

Key Features

• Soft switching (zero voltage) technology for reduced heat and enhanced reliability


• Remote sensing with 5 V line loss compensation


• Analog programming: 0–5 kΩ or 0–10 kΩ resistive inputs; 0–5 V or 0–10 V voltage sources


• Analog monitoring outputs: 0–5 V or 0–10 V (0–100% span)


• Dual digital display: simultaneous voltage and current readout


• Ten-turn front panel controls for voltage and current adjustment


• Output standby mode (push-button selectable)


• Setpoint preview capability (voltage, current, or OVP)


• Over-voltage protection (OVP), adjustable


• Over-temperature protection (OTP) with thermal shutdown (latching or auto-reset)


• Parallel and series operation supported for expanded output capability

Typical Applications Research and development, component characterization, system integration testing, production burn-in, and benchtop power delivery requiring tight output regulation and minimal thermal overhead.

Compatibility & Integration 19-inch rack form factor, 1U vertical height. Suitable for both standalone benchtop use and high-density rack deployment without auxiliary cooling requirements between adjacent units.