Allen-Bradley 1756-PB75
Allen-Bradley 1756-PB75
Allen-Bradley 1756-PB75
Allen-Bradley 1756-PB75
Allen-Bradley 1756-PB75
Allen-Bradley 1756-PB75
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1756-PB75

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Allen-Bradley 1756-PB75 is a ControlLogix 24 V DC chassis power supply with regulated backplane outputs.
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Technical specifications for 1756-PB75

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-PB75
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix 24V DC Power Supply
  • Stock:
    1
  • Input Voltage Range:
    18–32 V DC
  • Nominal Input Voltage:
    24 V DC
  • Maximum Input Power:
    95 W
  • Maximum Output Power:
    75 W at 0–60 °C
  • Maximum Inrush Current:
    30 A
  • Hold-Up Time:
    35 ms at 18 V; 40 ms at 24 V; 40 ms at 32 V
  • Current Capacity at 1.2 V:
    1.5 A
  • Current Capacity at 3.3 V:
    4 A
  • Current Capacity at 5.1 V:
    13 A
  • Current Capacity at 24 V:
    2.8 A
  • Isolation Voltage:
    250 V continuous; type tested at 3500 V DC for 60 s
  • Module Location:
    Left side of 1756 chassis
  • Supported Chassis:
    1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
  • Chassis Compatibility:
    Series B and Series C
  • Wire Size:
    2.5 mm² (14 AWG) copper, 90 °C rated
  • Conductor Screw Torque:
    0.565 N·m
  • Enclosure Type:
    Open-style
  • Operating Temperature:
    0–60 °C
  • Nonoperating Temperature:
    -40–85 °C
  • Relative Humidity:
    5–95%, noncondensing
  • Operating Vibration:
    2 g at 10–500 Hz
  • Operating Shock:
    30 g
  • Nonoperating Shock:
    50 g; Series C chassis limit 30 g
  • Emissions Standard:
    IEC 61000-6-4
  • Weight:
    0.95 kg
  • Estimated shipping dimensions:
    Product dimensions: 14.0 x 11.2 x 14.5 cm (H x W x D).
  • Tariff Code:
    8537101190
  • 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 Specifications Source Planning Load Verification Installation Review

Features:

  • •24 V DC source: Rockwell specifies an 18–32 V DC input range.
  • •75 W combined output: All ControlLogix backplane rails together must remain within 75 W.
  • •Standard chassis integration: The supply mounts on the left side of a supported 1756 chassis.

1756-PB75 converts an industrial 24 V DC source into the regulated power rails required by a ControlLogix backplane.

System planning should total the 1.2 V, 3.3 V, 5.1 V, and 24 V demand of every installed chassis module before commissioning.

Procurement review should confirm the exact 1756-PB75 catalog number, chassis series, DC source, wiring, and calculated load.

Availability is subject to Apter Power's current inventory and sourcing confirmation.
Allen-Bradley 1756-PB75 ControlLogix DC Power Supply Manuals and Resources 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.
Allen-Bradley 1756-PB75 ControlLogix DC Power Supply Specs

General

  • ManufacturerAllen-Bradley
  • Model1756-PB75
  • ConditionNew Original ready stock
  • Product FamilyControlLogix
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.
  • •Input range: Use an 18–32 V DC source for the 24 V DC nominal supply.
  • •Source capacity: Include the official 95 W maximum input requirement in cabinet power planning.
  • •Energization: Allow for up to 30 A inrush current when selecting protection and distribution components.
  • •Hold-up behavior: Rockwell specifies 35 ms at 18 V and 40 ms at 24 V or 32 V.
  • •Combined limit: The total power drawn across all backplane rails cannot exceed 75 W.
  • •5.1 V demand: Calculate installed module demand against the 13 A rail capacity.
  • •3.3 V demand: Calculate installed module demand against the 4 A rail capacity.
  • •Remaining rails: Include the 1.2 V at 1.5 A and 24 V at 2.8 A capacities in the chassis total.
  • •Mounting position: Install the supply on the left side of the supported 1756 chassis.
  • •Supported chassis: Rockwell lists 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17.
  • •Series review: The official technical data lists Series B and Series C chassis compatibility for 1756-PB75/B.
  • •Wiring check: Use 2.5 mm² (14 AWG) copper wire rated at 90 °C and apply the documented terminal torque.
Description
The Allen-Bradley 1756-PB75 is a standard ControlLogix DC power supply for 1756 chassis, operating from an 18–32 V DC input with 24 V DC nominal power.

1756-PB75 supplies up to 75 W across the ControlLogix backplane. Official current limits are 1.5 A at 1.2 V, 4 A at 3.3 V, 13 A at 5.1 V, and 2.8 A at 24 V.

Before sourcing 1756-PB75, verify the chassis type and series, calculated backplane load, incoming DC source, wiring requirements, and the complete catalog number on the installed label.
Revisions

Revision Part #

Also known as

1756-PB75 Ser B
1756-PB75/B, Series B, Rev B
Alternative Names
1756PB75 1756 PB75 AB 1756-PB75 Allen Bradley 1756-PB75 Rockwell 1756-PB75 ControlLogix 1756-PB75 1756-PB75 power supply ControlLogix DC power supply
Technical notes
Allen-Bradley 1756-PB75 accepts 18–32 V DC and supplies up to 75 W to a ControlLogix backplane. Verify chassis load and the complete catalog number before ordering.
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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.
What should a buyer verify before ordering Allen-Bradley 1756-PB75?
Confirm the complete catalog number, input supply, chassis series, calculated backplane load, quantity, condition, and required documentation.
Can 1756-PB75 replace 1756-PB72 without an engineering review?
Do not assume interchangeability. Compare the official catalog numbers, chassis series, input source, output capacities, wiring, and total backplane demand.
How should an engineer check whether 1756-PB75 can support a ControlLogix chassis?
Add the 1.2 V, 3.3 V, 5.1 V, and 24 V demand of every installed module and keep the combined load within official limits.
What information helps Apter Power quote 1756-PB75 accurately?
Provide a nameplate photo, product series, quantity, destination, required condition, delivery target, and any official-document requirements.
What should be reviewed when troubleshooting repeated 1756-PB75 power faults?
Check the 18–32 V DC source, wiring, terminal torque, chassis seating, ambient conditions, and calculated backplane load before replacing the unit.
Does 1756-PB75 require a separate connection cable?
Rockwell lists no connection cable as required for this standard power supply; verify the complete installed configuration before procurement.
Where can I find official documentation for 1756-PB75?
Use the verified PDF in the Manuals tab. Apter Power can also assist with documentation, sourcing, and chassis power matching.