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The 1756-PB72 is a standard direct current (DC) power supply module that belongs to the ControlLogix 1756 product series. This hardware is installed in the dedicated power supply slot on the left side of a ControlLogix chassis to convert external DC input into various regulated low-voltage power sources required by the backplane bus, supplying power to controllers, communication modules, and I/O modules within the same chassis. Its nominal input voltage is 24V DC, with an acceptable input voltage range of 18 to 32V DC.
All regulated voltages necessary for any ControlLogix® module to operate in the chassis
Limited hold-up time for fluctuations in incoming line power
Enables orderly system shutdown by signaling modules in the chassis of imminent voltage failure
This power supply module includes input voltage monitoring circuitry, built-in energy-storage capacitors, overcurrent protection mechanisms, and a front status indicator. In terms of electrical output structure, it contains backplane current output channels for 1.2V DC (1.5 A), 3.3V DC (4 A), 5.1V DC (10 A), and 24V DC (2.8 A). Its physical configuration includes a screw terminal block for connecting external power supply wires, and it is built as an open-style hardware enclosure.
This power supply module includes CE, c-UL-us, UKCA, and hazardous location certifications such as ATEX and IECEx. Its operating temperature ranges from 0 to 60 °C, and the product line includes the standard version as well as the 1756-PB72K version, which features a conformal coating on the circuit board for corrosion resistance.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1756-PB72 ControlLogix 24V DC Power Supply 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.
Water and Wastewater
Used in water plant pumping stations, wastewater aeration tanks, and dosing systems, providing steady power to Ethernet communication and digital modules in humid, harsh environments.
Oil and Gas
Deployed on drilling platforms, pipeline pumping stations, and distribution networks to provide stable DC backplane power for RTUs and Safety Instrumented Systems monitoring pressure and flow.
Automotive Manufacturing
Used in main PLC chassis for body welding, paint shops, and final assembly lines to power robotic coordination, conveyor VFD speed control, and safety light curtains.
Power Generation
Powers controllers in thermal/hydro/wind plants for turbine, boiler, and grid sync, ensuring fast data acquisition and fault response.
Steel & Metallurgy
Applied in blast furnace top-charging control and hot/cold rolling mill main chassis, ensuring uninterrupted operation of PLC processors and motion control modules under high EMI and high-temperature conditions.
Pharmaceuticals
Utilized in Logix chassis for FDA-compliant sterile production lines, freeze dryers, and bioreactors, securing continuous record-keeping and control of batch process data.
The 1756-PB72 supplies power to the ControlLogix chassis and works together with ControlLogix controllers, communication modules, and I/O modules to provide reliable system operation.
1756-PB72 features powerful load capacity with a 5.1V DC output current up to 10 A.This easily handles heavy-load, high-density chassis topologies containing multi-core high-performance controllers and numerous Ethernet communication modules, effectively preventing system resets.
It provides regulated power to all modules installed in the ControlLogix chassis.
How to install the 1756-PB72?
Plug it directly into the dedicated power slot on the far left of the chassis.
What applications is the 1756-PB72 used for?
Used in industrial automation systems where only 24V DC source is available.
Do you offer global delivery services?
Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
How many parts do you have in stock?
We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies. If you are unable to find what you are looking for then don’t panic.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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