The Allen-Bradley 1769-PB4 is a robust Compact I/O power supply designed for the 1769 Compact I/O family, offering dependable performance with an input voltage range of 19.2 to 31.2 VDC, and a nominal 24VDC. This power supply is capable of supporting up to eight modules on either side, delivering a current capacity of 4.0 A at 5VDC and 2.0 A at 24VDC. It boasts a resilient design with reinforced insulation, resisting a maximum inrush current of 30 A, and a continuous isolation voltage of 75V. The 1769-PB4 is engineered for efficiency with a power consumption of 100 VA and a power dissipation of 14.5 W at 60 °C. It features an internal fuse, accommodating Wickmann or Littelfuse options, and is housed in an open-type enclosure suitable for DIN rail or direct panel installation. With radiated RF immunity across extensive frequencies and sturdy physical specifications, this power supply thrives in varying conditions from a maximum altitude of 2000 meters to temperature ranges of 0 to 60 °C in operation.
Technical specifications for 1769-PB4
Dimensions
118 x 70 x 87 mm (4.65 x 2.76 x 3.43 in.)
Module Type
Power Supply
Brand
Allen-Bradley
Part Number/Catalog No.
1769-PB4
Manufacturer
Rockwell Automation
Nom Input Voltage
24VDC
Input Voltage Range
19.2-31.2VDC
Power consumption
100 VA @ 24V DC
Power dissipation
14.5 W @ 60 ° C (140 ° F)
Current capacity @ 5V
4.0 A
Current capacity @ 24V
2.0 A
Inrush current, max
30 A @ 31.2V DC
Isolation Voltage
75V (continuous), reinforced insulation type (IEC Class 1 grounding required) Routine tested at 1697V DC for 1 s, DC power input to system
