Description
GE IC693PWR322E
- Technical Specifications:
- Output Voltage: 25VDC nominal (±1% regulation)
- Output Current: 2.5A maximum (62.5W)
- Input Voltage: 120VAC / 240VAC selectable
- Input Frequency: 47-63Hz
- Operating Temperature Range: -40°C to +70°C (extended range)
- Ripple and Noise: <100mV p-p (improved over standard)
- Efficiency: ~70% at full load
- Isolation: 1500V RMS AC to DC
- MTBF: >150,000 hours (enhanced components)
- Dimensions: IC693 standard form factor
- Weight: ~0.5 kg
- Functional Features:
- Extended Temperature Operation: Functions reliably from -40°C to +70°C, suitable for outdoor and extreme environments
- Enhanced Diagnostics: Additional LED indicators for overtemperature, overcurrent, and undervoltage conditions
- Improved Ripple Performance: Lower noise output benefits sensitive analog modules
- Extended Component Life: Uses industrial-grade capacitors and MOSFETs rated for higher temperature
- Same Backplane Compatibility: Drop-in replacement for IC693PWR322 in any 90-30 rack
- Redundancy Ready: Fully compatible with N+1 redundant power configurations
- Application Scenarios:
- Outdoor PLC installations in mining and oil fields
- Arctic or desert environment automation
- Safety-critical process control (SIL-rated systems)
- Offshore platform control systems
- High-altitude installations with wide temperature swings
- Food and beverage plants with washdown requirements (IP-rated chassis)
- Performance Parameters:
- Output Ripple: <100mV p-p (vs 150mV on standard)
- Thermal Derating: Begins at 50°C ambient, full power at 25°C
- Transient Response: <8ms recovery from 50% load step
- Inrush Current: <25A peak (improved soft-start)
- Power Factor: >0.95
- Common Mode Noise: <50mV
- Material Composition:
- Housing: High-temperature polycarbonate, UL94 V-0, rated for -40°C to +85°C
- PCB: 4-layer FR-4 with high-Tg (glass transition temperature) material, 170°C rated
- Capacitors: 105°C rated electrolytic, solid polymer for output filtering
- Transformer: High-temperature enamel wire, Class H insulation (180°C)
- Connectors: Gold-plated with nickel underplate for corrosion resistance
- Structural Features:
- Identical form factor to IC693PWR322 for drop-in replacement
- Additional LED: Overtemperature warning (amber)
- Reinforced mounting brackets for vibration resistance
- Conformal-coated PCB for humidity protection
- Larger heat sink fins compared to standard version
- Working Principle:
- Same as IC693PWR322 but with enhanced switching regulator using a higher-frequency oscillator (100kHz vs 50kHz) for smaller filter components and lower ripple. The feedback loop uses a precision voltage reference (±0.5% tolerance) instead of a standard reference. The overtemperature circuit uses a thermistor on the heat sink to monitor case temperature and reduce output current if temperature exceeds 70°C.
- Installation Requirements:
- Same as IC693PWR322 — drop-in compatible
- Ensure chassis has adequate ventilation even at extreme temperatures
- Use thermally rated wire for AC input connections
- Verify extended temperature rating matches your environment
- Usage Precautions:
- The “E” version costs more — only specify it if you need the extended temperature range
- Do not mix standard and enhanced versions in the same rack without checking compatibility
- At temperatures above 60°C, derate the bus current by 10% per 10°C
- Check the overtemperature LED during commissioning — if it lights at normal ambient, there is a cooling issue





