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Ships by Saturday, August 15
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· Product image is representative; revision or series may vary. Contact us to request a specific version.
We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 1756-PB72
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Product Model1756-PB72
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Spare Model1756PB72
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Product ParametersControlLogix 24V DC Power Supply
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size19.5x20.5x17.5cm
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ManufacturerAllen-Bradley
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Weight1.2 kg
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Input voltage range18…32V DC
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Input voltage, nom24V DC
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Input power, max95 W
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Output power, max75 W @ 0…60 °C (32…140 °F)
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Current capacity @ 1.2V1.5 A
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Current capacity @ 3.3V4 A
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Current capacity @ 5.1V10 A
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Current capacity @ 24V2.8 A
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Isolation voltage250V
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Module locationLeft side of 1756 chassis
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Temperature, nonoperating-40…+85 °C (-40…+185 °F)
Description
The Allen-Bradley 1756-PB72 is a 24 VDC ControlLogix Power Supply Module for the ControlLogix 1756 programmable automation platform. The module supplies regulated power to the ControlLogix backplane, providing the operating voltages required by controllers, communication modules, motion modules, and I/O modules installed in the chassis. for industrial automation systems, the 1756-PB72 is mounted on the left side of the ControlLogix chassis and serves as the primary power source for the local rack.
The 1756-PB72 operates from a 24 VDC nominal input with an 18 to 32 VDC input voltage range. It provides a maximum 75 W output power while accepting up to 95 W input power. The module delivers multiple regulated outputs to the backplane, including 5.1 VDC at 10 A, 3.3 VDC at 4 A, 1.2 VDC at 1.5 A, and 24 VDC at 2.8 A. This output capacity enables the 1756-PB72 to support a wide variety of ControlLogix system configurations using standard automation modules.
The 1756-PB72 operates from a 24 VDC nominal input with an 18 to 32 VDC input voltage range. It provides a maximum 75 W output power while accepting up to 95 W input power. The module delivers multiple regulated outputs to the backplane, including 5.1 VDC at 10 A, 3.3 VDC at 4 A, 1.2 VDC at 1.5 A, and 24 VDC at 2.8 A. This output capacity enables the 1756-PB72 to support a wide variety of ControlLogix system configurations using standard automation modules.
Revisions
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Also known as
Information
Overview
Manuals
Application Notes
Product Applications
Critical Application & Installation Notes
Features:
- Built-in overvoltage, overcurrent, and thermal protection for reliable operation
- Designed for installation on the left side of 1756 ControlLogix chassis
- Supplies up to 10 A at 5.1 VDC, supporting a wide range of ControlLogix modules
- Provides 24 VDC input with 75 W maximum output power for ControlLogix chassis
Isolation capabilities are noteworthy, with a continuous isolation voltage rated at 250 Volts. The module features reinforced insulation, significantly enhancing safety and reliability during operation. Isolation is available between power input and backplane, further protecting sensitive components.
Notably, the enclosure type is classified as open-style, meaning it does not have a housing, allowing for direct exposure to the installation environment. For ease of installation, the conductor screw torque specification is set at 0.565 Nm, facilitating secure connections. Overall, the 1756-PB72 power supply module is a key component for efficient operation within automated control systems.
The 1756-PB72 Allen Bradley Power supply module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen Bradley 1756-PB72 Power supply module Manuals, Datasheets, Drivers, Link
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.
The 1756-PB72 features a nominal input voltage of 24V DC with an operating input voltage range of 18…32V DC. The 1756-PB72 has a maximum input power of 95W and delivers a maximum output power of 75W at 0…60°C (32…140°F). The 1756-PB72 supplies multiple backplane voltages including 5.1V, 24V, 3.3V, and 1.2V DC, with the combination of all output power across these backplane voltages not exceeding 75W. The 1756-PB72 has a hold-up time of 35 ms at 18V DC, 40 ms at 24V DC, and 40 ms at 32V DC, ensuring continued operation during brief input power interruptions.
The 1756-PB72 includes built-in overcurrent protection with time-delay type overcurrent protection required in all ungrounded conductors to guard against fire hazard due to short circuit conditions. The 1756-PB72 has a maximum inrush current of 30A and a power dissipation of 68.2 BTU/hr. The 1756-PB72 has a power consumption of 20W at 0…60°C and is designed for safe operation in industrial control applications
- Process Automation Systems: Powers DCS and ControlLogix automation systems
- Manufacturing Production Lines: Supports discrete assembly lines, automotive plants, and heavy packaging machinery
- Water & Wastewater Facilities: Operates municipal filtration, distribution, and chemical treatment PLC arrays
- Motion Control Cabinets: Assists multi-axis motion and drive configurations in integrated control panels
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Chassis Compatibility: Designed for left-side mounting on standard 1756 ControlLogix Series A, B, and C chassis.
Power Allocation: The aggregate power draw across all four voltage rails (5.1V, 24V, 3.3V, and 1.2V) must not exceed the 75W maximum rating.
Overcurrent Protection: Install a time-delay type fuse in all ungrounded input conductors to mitigate short-circuit hazards.
Protective Labeling: Leave the protective shipping label on the top vent intact during physical mounting to prevent drilling debris or metal shards from falling inside. Remove it only after final panel assembly is complete to avoid overheating.
Wiring Requirements: Use 14 AWG (2.5 mm²) solid or stranded copper wire rated for a minimum of 90 °C. Torque conductor screws exactly to 0.8 N·m (7 lb·in).
Alternative Names
1756-P872
I756-PB72
1756P872
I756P872
1756PB72
I756PB72
I756-P872
Technical notes
The 1756-PB72 is compatible with 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 ControlLogix chassis.allowing straightforward installation within standard control cabinets. The module is intended for operation in ambient temperatures from 0°C to 60°C and can be stored between -40°C and +85°C, making it suitable for demanding industrial environments.
FAQs
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Which chassis models are compatible with this power supply?
+It is compatible with standard 1756 ControlLogix chassis, ranging from 4-slot to 17-slot models (1756-A4 through 1756-A17). It supports Series A, B, and C chassis. -
Does it occupy a standard I/O slot in the chassis?
+No. It mounts to a dedicated power supply slot on the far left side of the chassis, leaving all numbered I/O slots open for modules. -
What are the input voltage requirements?
+It has a nominal input of 24V DC, with an acceptable operational range of 18 to 32V DC. -
What is the maximum output wattage?
+The unit features a maximum output power capacity of 75 Watts at temperatures up to 60 °C (140 °F).
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