The Xantrex XFR40-70 is a 2800 W programmable DC power supply engineered for research, product development, and production testing environments requiring precision and stability. Operating across 0–40 VDC output and 0–70 ADC output current, the unit delivers full rated power across its entire 0–50°C operating temperature range without derating. Zero voltage soft switching technology minimizes switching transients, achieving noise performance approaching linear supplies while maintaining up to 97% efficiency and improved reliability.
Technical Specifications
• Output: 0–40 VDC, 0–70 ADC at 2800 W maximum
• Line Regulation: 6 mV or 3 mV (0.01% of Vmax + 2 mV) voltage; 9 mA or 4 mA (0.01% of Imax + 2 mA) current
• Load Regulation: 3 mV (0.02% of Vmax + 5 mV) voltage; 4 mA (0.02% of Imax + 5 mA) current
• Voltage Ripple: 0.15% Vp-p
• Switching Frequency: 31 kHz nominal (62 kHz output ripple)
• Transient Response: <3 ms for output voltage recovery within 0.5% of rated voltage after step change
• Turn-on Time: Maximum 7 seconds to stable output
• AC Input: 190–264 VAC, 1φ, 47–63 Hz (22.6 A @ 208 VAC; 20.5 A @ 230 VAC typical)
– Key Features
• Constant voltage or constant current modes with automatic crossover
• Ten-turn resolution controls for voltage and current adjustment
• Simultaneous front-panel display of output voltage and current
• Over Voltage Protection with front panel control and preset preview capability
• LED mode indicators for voltage, current, OVP, remote programming, and shutdown status
• Standby control via front panel push-button
• Design allows stacking in rack mounts without requiring ventilation spacing between units
– Typical Applications
OEM system integration, laboratory power sourcing, component characterization, production burn-in testing, and thermal chamber applications.
– Compatibility & Integration
Soft switching topology enables high-density rack mounting configurations. Front-panel preset preview and remote programming mode support automated test sequences and distributed power architectures.
