The Allen-Bradley 1769-PA2 is an expansion power supply for the CompactLogix and 1769 Compact I/O system.It is designed to provide stabilized DC power to the 1769 backplane when the power consumption of the I/O modules exceeds the capacity of the controller’s built-in supply or when I/O modules are located in a remote bank.
Specifications
Input Voltage:120V AC or 240V AC (Switch selectable).
Input Voltage Range:85–265V AC.
Output Power (Backplane):* 2.0 Amps at 5V DC.
0.8 Amps at 24V DC.
Input Frequency:47–63 Hz.
Power Consumption:50 VA @ 120V AC; 60 VA @ 240V AC.
Operating Temperature:0°C to +60°C (32°F to 140°F).
Mounting:DIN rail or Panel mount.
Features
Selectable Input:Features a recessed slide switch to toggle between 120V and 240V AC nominal inputs, allowing for global compatibility.
Distance Rating:Has a power supply distance rating of 8, meaning it can power up to 8 I/O modules in either direction (left or right) within a single bank.
Status Indication:Includes a green "PWR" LED on the front panel to provide immediate visual confirmation that DC output power is active.
Finger-Safe Terminals:Designed with covered screw terminals to prevent accidental contact with live AC wiring during operation.
Robust Protection:Integrated overvoltage and short-circuit protection ensures the safety of the sensitive Logix CPU and I/O modules on the backplane.
Modular Integration:Connects seamlessly to the 1769 backplane via a tongue-and-groove side locking mechanism, requiring no special cables for power distribution.
