Description:

The Allen-Bradley 1769-PA4 Compact I/O Selectable AC Power Supply is used in PLC automation systems to provide regulated power for CompactLogix and MicroLogix 1500 control platforms. It delivers reliable backplane power to connected Compact I/O modules and controllers while supporting stable operation within industrial control panels. Commonly installed in manufacturing machinery, conveyor systems, packaging equipment, and process automation control panels, this power supply ensures dependable power distribution for modular PLC systems. Maintenance teams and system integrators use this power supply for system repairs, control panel upgrades, automation expansion, and replacement of existing Compact I/O power supply units.

Applications:

The Allen-Bradley 1769-PA4 power supply is used in industrial automation systems where CompactLogix or MicroLogix controllers require stable AC-powered backplane power. It is commonly applied in manufacturing production lines, conveyor and material handling systems, packaging machinery, and automated industrial equipment where multiple Compact I/O modules must be reliably powered within PLC control systems.

Technical Specifications:

• Manufacturer Part Number (MPN): 1769-PA4
• Product Type: PLC Power Supply
• Series: Compact I/O (1769 Series)
• Input Voltage: 85–265V AC
• Input Frequency: 47–63 Hz
• Output Current: 4 A at 5.1V DC, 2 A at 24V DC
• Output Power: Backplane power for Compact I/O modules
• Compatible Systems: CompactLogix, MicroLogix 1500
• Mounting Type: DIN Rail or Panel Mount
• Module Type: Selectable AC Input Power Supply
• Operating Temperature: 0 to 60 °C (32 to 140 °F)

Common Replacements:

• Allen-Bradley 1769-PB4
• Allen-Bradley 1769-PA2
• Allen-Bradley 1769-PB2