Xantrex XG20-42

The Xantrex XG20-42 is a programmable DC power supply delivering 850 W across a 0–20 V, 0–42 A output range in a compact 1U half-rack footprint. Built on high-frequency soft-switching architecture, it combines high power density with precise regulation: ±0.005% voltage accuracy plus 2 mV, and ±0.2% current regulation. The unit operates across dual AC input ranges (85–132 Vac or 170–265 Vac) with integrated power factor correction and variable fan speed control.

– Technical Specifications

• Output: 0–20 V, 0–42 A (850 W maximum)
• Voltage Regulation: ±0.005% of rated output + 2 mV (constant load, 85–132 Vac or 170–265 Vac input)
• Current Regulation: ±0.2% of rated output (constant load measurement)
• AC Input: 85–132 Vac or 170–265 Vac, 50/60 Hz nominal
• Auxiliary Outputs: AUX1 (5 V, 0.5 A), AUX2 (15 V, 0.5 A)
• Form Factor: 1U half-rack with variable fan speed control

– Key Features

• Constant Voltage/Constant Current modes with automatic crossover
• Multi-level protection: Over Voltage (OVP), Over Current (OCP), Over Temperature (OTP), and foldback
• External shutdown and interlock functions
• Front panel lockout for secure remote operation
• Analog programming with user-selectable control range (0 V to 2–10 V upper limit)
• Program sequencing with pre-programmed test routines
• Output Auto Start, Auxiliary Auto Start, and Constant Power modes (v2.21+)

– Interfaces & Control

• Standard: USB 2.0, RS-232, RS-485, isolated and non-isolated analog
• Optional: GPIB/IEEE 488.2, LXI Class C Ethernet
• Multi-unit configuration: Up to 30 XG series units via RS-485
• Series/parallel connection for voltage or current scaling

– Typical Applications

Test and production environments, laboratory characterization, OEM integration, and quality assurance requiring precise, programmable low-voltage DC sourcing with integrated protection and multi-interface control.