Telkoor AC-3U-250

Description

• Form Factor: 3U, 8HP, 160 mm depth
• Input Voltage: 90–264 V AC, single-phase, 47–63 Hz (auto ranging)
• Power Factor Correction: 0.98 typical at full load
• Continuous Output Power: 250 W
• Typical Outputs: +3.3 V / 36 A, +5 V / 25 A, +12 V / 5 A, -12 V / 0.5 A
• Efficiency: >80% typical at 230 V AC full load (>81% at high line)
• Inrush Current: 50 A maximum at 230 V AC
• Brown-out Protection: 75 to 300 V AC for 50 ms
• Input Protection: Internal 6.3 A / 250 V AC quick-acting fuse
• Interface: Standard 47-pin PICMG CPCI power connector
• Protection Functions: Over-voltage, over-current, over-temperature, short-circuit protection
• Redundancy / Hot-swap: Supports hot-swap and N+1 redundant configuration
• Active current share on V1 & V2
• Operating Temperature: -5 °C to +55 °C (no de-rating)
• Certifications: UL, CSA, CE, CCC
• EMC Compliance: FCC Part 15 Class B, EN-55022 Class B (with external line filter)
• On-board EEPROM for power supply hardware configuration
• No minimum loading requirement

• Unique dual-converter parallel architecture (PICMG 2.11): one converter for 3.3 V, one for 5 V, enabling maximum current draw on both outputs
• Wide-range input 85–264 V AC with unity power factor
• Hot-swap capability allows power module replacement without system shutdown
• N+1 full redundancy operation for high-availability systems
• Multi-layer electrical protection safeguards downstream boards
• Military-grade manufacturing, strong anti-vibration and EMC resistance