The Allen-Bradley 1771-P4S is a robust power supply module engineered to deliver reliable 5V DC power at up to 8 Amperes for PLC-5 systems. Designed to integrate seamlessly into the 1771 Universal I/O chassis, this module ensures consistent and efficient operation of your industrial automation processes. Key Features Input Voltage Range: 97–132V AC Nominal Input Voltage: 120V AC Input Frequency: 47–63 Hz Output Voltage: 5V DC Maximum Output Current: 8 Amperes Module Width: Occupies a single chassis slot Compatibility: Compatible with 1771-A1B, 1771-A2B, 1771-A3B, and 1771-A4B Universal I/O Chassis Parallel Operation: Supports parallel configuration with another 1771-P4S module using a 1771-CT cable to increase current capacity Technical Specifications Real Input Power (Max): 59 W Apparent Input Power (Max): 89 VA Transformer Load (Max): 148 VA Fuse: 1.5 A, 250 V, slow-blow Operating Temperature: 0°C to 60°C (32°F to 140°F) Storage Temperature: -40°C to 85°C (-40°F to 185°F) Relative Humidity: 5% to 95% non-condensing Wire Size: 14 AWG max (single wire only) Weight: Approximately 0.9 kg (1.85 lbs) Benefits Space Efficiency: Requires no additional space outside the I/O chassis, as it connects directly to the backplane. Operational Indicators: Features output-power indicators to confirm 5V DC supply to the backplane. Scalability: Supports parallel operation to provide up to 16 A of current per chassis when used with a 1771-CT cable. The 1771-P4S power supply module is engineered to provide dependable power to PLC-5 systems, ensuring efficient and uninterrupted operation of industrial automation processes.