High-Voltage DC Power for Industrial ControlLogix Systems
The 1756-PH75 delivers specialized 125VDC power conversion for demanding Allen-Bradley ControlLogix applications. This robust power supply operates efficiently with high-voltage DC input sources. It provides stable 75 watts of clean power to your entire automation system.
Electrical Specifications & Power Performance
- Input Voltage Range: 90-143 V DC with 125 V DC nominal operation
- Maximum Input Power: 95 watts total power consumption rating
- Output Power Rating: 75 watts continuous at 0°C to +60°C
- Output Current at 5.1V DC: 13 amps maximum for core logic power
- Output Current at 3.3V DC: 4 amps for low-voltage circuit requirements
- Output Current at 24V DC: 2.8 amps for interface and sensor power
- Output Current at 1.2V DC: 1.5 amps for specialized applications
- Inrush Current: 30 amps maximum during initial power application
Environmental Specifications & Durability
- Operating Temperature: 0°C to +60°C (32°F to 140°F) full range
- Storage Temperature: -40°C to +85°C for transport and storage
- Relative Humidity: 5% to 95% non-condensing per IEC 60068-2-30
- Operational Shock: 30G impact resistance for harsh environments
- Non-operational Shock: 50G withstand capability during transport
- Vibration Resistance: 2.0G operational from 10-500 Hz frequency
- Isolation Rating: 250V continuous reinforced insulation system
Physical Specifications & Installation Data
- Dimensions: 5.51 × 4.41 × 5.71 inches (140 × 112 × 145 mm)
- Weight: 2.5 pounds (1.1 kilograms) sturdy construction
- Mounting Position: Left-side chassis slot in ControlLogix systems
- Chassis Compatibility: Series B models A4, A7, A10, A13, A17
- Wiring Specification: 2.5 mm² stranded or solid copper wire
- Wire Insulation: 90°C (194°F) rating with 1.2 mm maximum thickness
- Torque Specification: 0.8 N•m (7 lb•in) for secure connections
Performance & Safety Features
- Hold-up Time: 50 milliseconds maximum at 90-143V DC input
- Dielectric Strength: 3500V DC withstand test for 60 seconds
- Insulation Type: Reinforced insulation for enhanced protection
- Efficiency Rating: 79% typical efficiency at full load operation
- Voltage Regulation: ±1% typical line and load regulation
- Ripple and Noise: 45mV maximum peak-to-peak at 5.1V output
- Protection: Built-in overcurrent and thermal shutdown features
Packaging & Shipping Information
- Package Contents: One 1756-PH75 high-voltage DC power supply
- Shipping Methods: Worldwide delivery via FedEx, UPS, and DHL
- Quality Assurance: Complete 12-month warranty coverage
Expert Technical Questions Answered
- What applications typically use 125VDC power systems?
- Industrial plants, telecommunications, and transportation often utilize 125VDC distribution.
- How does the hold-up time protect my system during power loss?
- The 50ms hold-up maintains operation during brief interruptions for graceful shutdown.
- Can this power supply handle voltage fluctuations in industrial settings?
- Yes, the wide 90-143V DC input range provides excellent voltage variation tolerance.
- What safety certifications does the reinforced insulation provide?
- It meets stringent safety standards with 3500V DC dielectric withstand testing.
- Is special wiring required for the high-voltage DC input?
- Use 2.5mm² copper wire with proper insulation and 0.8 N•m torque for safety.
Technical Resources & Compatible Components
- Download the complete technical specification manual here: Download ControlLogix Manual
- Pair with safety controllers like the 1756-L83ES
© 2025 World of PLC Limited. All rights reserved.
Original Source: https://worldofplc.com/
Technical Support Contact: info@worldofplc.com | Phone: +86 158 8020 0923
Partner: PLCDCS HUB Limited | PLC Pioneer Limited
Reviews
There are no reviews yet.