Allen-Bradley 1769-PB4 Compact I/O DC Power Supply
Compact I/O Power Supply
24V DC Input
19.2–31.2V DC Input Range
Place of Origin:
USA
Brand Name:
Allen-Bradley
Compact I/O Power Supply
,24V DC Input
,19.2–31.2V DC Input Range
AMIKON INDUSTRIAL SUPPLY / PRODUCT ARCHIVE
Allen-Bradley
1769-PB4
Compact I/O power supply for compatible CompactLogix system configurations. Identify the catalog number, review the installation requirements, and confirm the application details before sourcing.
PRODUCT IDENTITY
01 / PRODUCT FUNCTION
Power for a Compact I/O system
The 1769-PB4 provides power to the 1769 Compact I/O system bus in compatible configurations. Correct selection depends on the existing controller and I/O arrangement, the connected module load, and the applicable installation requirements.
For replacement planning, check the installed catalog number and confirm that the proposed unit matches the system design before ordering or installation.
SELECTION NOTES
Match the complete catalog number and any relevant product markings.
Review the installed controller, connected I/O modules, and bus arrangement.
Check mounting, wiring, load distribution, and manufacturer instructions.
02 / ENGINEERING REFERENCE
Technical Specifications
Additional technical and installation notes
The 1769 Compact I/O power supply supports up to eight I/O modules on each side, subject to applicable system and module restrictions.
The maximum current distributable from either side of a 1769 power supply is 2A at 5V DC and 1A at 24V DC. Per-side limits must be considered separately from the overall supply ratings.
The published power-supply distance rating is eight. Each connected I/O module must also satisfy its own distance-rating requirements.
The published DC input-to-system isolation specification is 75V continuous, reinforced insulation type, with routine testing at 1697V DC for one second.
Disconnect power and follow the manufacturer's installation instructions before mounting, wiring, or removing modules. Do not insert or remove modules under power.
03 / MAINTENANCE CONTEXT
Application & Failure Scenarios
This power supply may be searched for during maintenance of a compatible 1769 Compact I/O arrangement, particularly when investigating a supply fault, loss of I/O power, or a planned replacement. The actual fault should be confirmed before a part is identified as defective.
Power supply fault
Check the incoming DC supply, wiring, connections, and unit condition before deciding whether replacement is necessary.
I/O bank power loss
Review module loading, bus distribution, module seating, and the applicable distance-rating requirements.
Production interruption
Loss of required I/O power can interrupt control or monitoring functions. The process impact depends on the specific machine and system design.
05 / PRODUCT QUESTIONS
Frequently Asked Questions
1. What is the 1769-PB4 used for?
It provides DC power to the 1769 Compact I/O system bus in compatible configurations. Confirm the existing controller and I/O arrangement before selecting a replacement.
2. What input voltage does this power supply use?
The published nominal input is 24V DC, with an input range of 19.2–31.2V DC.
3. What are the rated current capacities?
The published capacities are 4.0A at 5V DC and 2.0A at 24V DC. Per-side distribution limits and connected-module requirements must also be considered.
4. Can another 1769-series power supply replace this model?
Not automatically. Check the input type, current capacity, bus loading, module arrangement, and manufacturer compatibility requirements before approving a substitute.
5. What information is needed for a quotation?
Provide the part number, quantity, destination, required date, and machine/system model. A nameplate photo or installation details can also help clarify the request.
06 / CATALOG BROWSER
Related Models
Additional catalog numbers for sourcing reference only. Listing here does not establish technical compatibility or direct replacement suitability.
Browse related catalog numbers
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