The Power One PFC375-4000 is a 375 W high-voltage DC power supply delivering 4000 VDC output at 0.094 A nominal. Built for industrial, medical, telecommunications, and test equipment applications, it combines universal 85–264 VAC input with active power factor correction (>0.95) and comprehensive protection circuitry. The supply operates across -20°C to +70°C and maintains >80% efficiency at full load with 0.95 at full load
• Efficiency: >80% at full load
• Output ripple and noise: 20 ms at full load, 115 VAC input
• Isolation: 3000 VAC (input to output), 1500 VAC (input to ground), 500 VDC (output to ground)
• Leakage current: 100,000 hours at 25°C ambient
• Safety: UL, CSA, VDE, TÜV, BABT
• EMC: FCC Part 15 Class A, EN55022 Class A; EN61000-3-2 Class D harmonic compliance
– Typical Applications
Industrial automation, medical high-voltage equipment, telecommunications infrastructure, test and measurement instrumentation, laser power supplies, and semiconductor fabrication systems.
– Compatibility & Integration
Open-frame chassis mount design (215 mm × 105 mm × 40 mm, 1.0 kg). Universal input and active PFC enable global deployment across variable power environments.













