1769-PB4 AC Power Supply Module

The Allen-Bradley 1769-PA4 is a CompactLogix I/O power supply. It can provide 120 to 240 Volts of

AC power and 24 Volts of DC power to the CompactLogix 1769-L3x processors, controllers, and the I/O

modules connected to it. Up to 8 modules can connect to each side of the 1769-PA4 for a maximum of

16 modules for one power supply. This power supply provides 4A of current at 5 Volts DC or 2A at 24 Volts

DC. This module measures 2.76 x 3.43 x 4.65 inches and weighs approximately 630 g (1.39 lb). This power

supply supports DIN rail or panel mounting. It has an open-style enclosure with integrated fuse that is

replaceable with part numbers Littelfuse 02183.15MXP or the Wickman 19195-3 fuses.
The 1769-PA4 has components that include a bus lever with a locking function, LED status indicator, a power

supply door with an identification label, both movable and stationary bus connectors (with male and female pins),

a nameplate label, upper and lower tongue-and-groove slots, upper and lower DIN rail latches, a terminal block

with finger-safe cover, and a housing cover for the replaceable fuse.

1769-PB4

This power supply has a selectable input voltage range of 85 to 265 Volts and 170-265 VAC along an input

frequency range of 47 to 63 Hertz. Its power consumption is around 200 VA at 120 Volts AC and 240 VA at

240 Volts AC and its maximum inrush current is 25 Amps at 132 Volts AC. The 1769-PA4 has a current

capacity of 4 Amps at 5 Volts DC and one of 2 Amps at 24 Volts DC, a nominal input voltage of 120 to 220

Volts AC, a Wattage of 18 Watts, and an output voltage of 24 Volts DC. Its isolation voltage is continuous at 265 Volts from AC power input to the system.

The Allen-Bradley product with part number 1769-PA4 is a CompactLogix component that functions as an

I/O Power supply. This CompactLogix I/O power supplies backplane power which is distributed to the 1769

Compact I/O modules. This power supplies is capable of powering modules from both sides of the unit.

Compact I/O modules may be installed on each side of the I/O expansion power supply where up to Eight (8) modules may be installed for a total of 16 Compact I/O modules.