Allen-Bradley 1771-P4S AC Power Supply Module The Allen-Bradley 1771-P4S is a robust power supply module engineered for the PLC-5 automation platform, delivering consistent 5V DC power to the backplane of 1771 Universal I/O chassis. This ensures reliable operation of all installed modules within the system. 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: Single-slot design Built-in Protection: 1.5A, 250V slow-blow fuse Parallel Operation Support: Allows connection with additional power supplies to increase backplane power capacity Compatibility: Supports 1771-A1B, 1771-A2B, 1771-A3B, and 1771-A4B Universal I/O Chassis Technical Specifications Parameter Specification Catalog Number 1771-P4S Module Type Power Supply Series 1771 Product Family Input Voltage Range 97–132V AC Nominal Input Voltage 120V AC Input Frequency Range 47–63 Hz Maximum Output Current 8A Output Voltage 5V DC Maximum Input Power 59 W (real), 89 VA (apparent) Backplane Output Current 8A at 5V DC Module Width 1-slot Wire Size 14 AWG max (single wire only) Built-in Fuse 1.5A, 250V, slow-blow Paralleled Support -LSP, -LWP, -XP, -ZP, -P4S Terminal Block 5-position (Wago 231-205/000-008 included) Mounting Location 1771 Chassis, 1 Slot Dimensions 1 Chassis Slot Operating Temperature 0 to 60°C (32 to 140°F) Storage Temperature -40 to 85°C (-40 to 185°F) Relative Humidity 5–95%, non-condensing Application Benefits The Allen-Bradley 1771-P4S ensures stable and continuous power delivery to PLC-5 systems, enhancing operational efficiency and system reliability. Its compact single-slot design facilitates easy installation, while the capability for parallel operation allows for scalable power solutions to meet varying system demands.