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1756-PB75R

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Allen-Bradley 1756-PB75R is a ControlLogix 24 V DC redundant power supply for compatible redundant chassis power architectures.
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Technical specifications for 1756-PB75R

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-PB75R
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix DC Redundant Power Supply
  • Stock:
    1
  • Power architecture:
    redundant DC power supply
  • Nominal input voltage:
    24 V DC
  • Input range:
    19–32 V DC
  • Output power:
    75 W at 0–60 °C
  • Output currents:
    5 V DC 13 A; 3.3 V DC 4 A; 1.2 V DC 1.5 A; 24 V DC 2.8 A
  • Required connection cable:
    1756-CPR2
  • Dimensions:
    14.5 × 17.5 × 13.7 cm
  • Weight:
    1.45 kg
  • Tariff Code:
    8504401400
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Redundant Path Chassis Budget Power Recovery Application
  • Provides 24 V DC redundant power capability for compatible ControlLogix chassis
  • Uses the documented 1756-CPR2 connection cable in the redundant architecture
  • Requires a complete source, cable, chassis-load, and temperature review

1756-PB75R is an Allen-Bradley ControlLogix DC redundant power supply.

It is part of a compatible redundant chassis-power arrangement and must be evaluated with both input sources and the connected ControlLogix load.

Confirm the redundant design, 1756-CPR2 cable, DC source capacity, chassis load, and installed environment before replacement.

Availability, condition, price, and shipping time for 1756-PB75R are confirmed during quotation.

Allen-Bradley 1756-PB75R ControlLogix Redundant DC Power Supply Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Match both 24 V DC sources to the approved redundant power design
  • Use the documented 1756-CPR2 cable arrangement
  • Inspect the complete paired path after a power-loss event
  • Calculate the installed ControlLogix chassis load against the documented supply outputs
  • Include expansion and module loading in a power-system review
  • Use the temperature-conditioned output rating for the installed environment
  • Verify DC polarity and input protection before energizing a replacement
  • Inspect both source paths rather than only the supply reporting a fault
  • Restore control-system power through the approved machine recovery process
  • Redundant ControlLogix chassis power architectures
  • 24 V DC control systems requiring paired chassis power paths
  • ControlLogix installations with engineered power-availability requirements
Description
1756-PB75R is an Allen-Bradley ControlLogix DC redundant power supply for compatible redundant chassis power systems.

It accepts a nominal 24 V DC input and provides 75 W output capacity for the documented redundant power architecture, using the specified 1756-CPR2 connection cable.

Before replacement, verify the redundant chassis design, paired power path, connection cable, input supply capacity, environmental duty, and controller system configuration.
Revisions

Revision Part #

Also known as

1756-PB75R Ser A
1756-PB75R/A, Series A, Rev A
Alternative Names
1756-PB75R 1756 PB75R 1756PB75R Allen-Bradley 1756-PB75R Rockwell Automation 1756-PB75R ControlLogix 1756-PB75R
Technical notes
1756-PB75R is a redundant 24 V DC ControlLogix supply; confirm the paired power architecture, 1756-CPR2 cable, source capacity, and chassis-load budget before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can 1756-PB75R be used as the only power supply in a nonredundant ControlLogix chassis?
1756-PB75R is identified as a redundant DC power supply. Confirm the complete chassis power architecture and approved supply arrangement before using it in a nonredundant design.
Does 1756-PB75R include the cable needed for the redundant power connection?
Verify the supplied stock description. The official product record identifies the 1756-CPR2 connection cable, which should be treated as a separately matched item unless expressly included.
Why can a 1756-PB75R redundant system still lose chassis power when one DC source appears healthy?
Inspect the paired supply path, 1756-CPR2 cable, source voltage, input protection, wiring, and the complete redundant architecture rather than judging one source in isolation.
Can 1756-PB75R replace a standard ControlLogix power supply without checking the chassis layout?
No. The redundant power arrangement, cable path, input source, chassis compatibility, and thermal conditions must be confirmed before substitution.
What should be checked before applying 24 V DC to a replacement 1756-PB75R?
Verify correct polarity, supply capacity, wiring protection, redundant cable connection, mechanical seating, and the accepted power-system design.
Why must 1756-PB75R capacity be assessed at the installed temperature?
The published output-power rating is conditioned by temperature. Confirm the complete chassis load and installation environment against the documented operating rating.
Can two differently configured redundant power systems share the same 1756-PB75R replacement plan?
No. Review the exact chassis, connected supplies, cable path, load budget, and control system design for the installed redundant architecture.