The Bel Fuse/Power-One PFC375-4002 is a 375 W power supply from the Performance Power Series, engineered for commercial and industrial applications requiring regulated DC power delivery. The unit integrates active Power Factor Correction (PFC) to meet EN61000-3-2 standards and operates across a wide AC input range of 85–264 VAC at 47–63 Hz. It delivers full rated output power with 300 LFM forced-air cooling, with an optional factory-installed fan available.
## Technical Specifications
• **Output Power:** 360–375 W typical
• **Input Voltage Range:** 85–264 VAC
• **Input Frequency:** 47–63 Hz
• **Input Current:** 6 ARMS at 85 VAC, full rated load
• **Input Protection:** Non-user serviceable internal AC fuse (F10A, 250 V)
• **Hold-Up Time:** 20 ms at full AC input voltage range and rated load
• **Operating Temperature:** 0°C to +70°C
• **MTBF:** >1 million hours demonstrated
• **Line Regulation:** ±0.2% to ±0.5% (output dependent)
• **Load Regulation:** ±0.4% to ±0.9% (output dependent)
• **Ripple and Noise:** Maximum 1% peak-to-peak (20 MHz bandwidth)
• **Safety Approvals:** CB, CE, CSA, Nemko per IEC 62368
• **RoHS Compliant:** Yes (models with ‘G’ suffix)
## Key Features
• Active Power Factor Correction meets EN61000-3-2
• Remote sense capability on main output
• Current sharing for redundant configurations (±10% accuracy, up to 6 parallel units)
• TTL-compatible logic level inhibit function
• Power fail signal with 5 ms dropout time at 110 VAC
• DC power good signal
• Overtemperature protection with automatic reset
• Overvoltage and overcurrent protection with automatic recovery
• Brown-out protection maintains regulation at 85 VAC input under full load
## Typical Applications
• Industrial control systems
• Commercial telecommunications equipment
• Redundant and fault-tolerant power configurations
• Systems requiring multi-rail DC outputs
## Compatibility & Integration
The PFC375-4002 accommodates multiple single and dual output configurations, enabling integration into diverse system architectures. Current sharing capability supports parallel operation up to six units for increased capacity. Remote sense and inhibit functions interface directly with system controllers via TTL-level signaling.
