Allen-Bradley 1756-PB72 ControlLogix Power Supply
$123.00
$320.00
Description
Overview
The 1756-PB72 is a DC-input power supply module engineered for Allen-Bradley ControlLogix automation platforms. Designed for chassis-mounted installation, this module converts 18–32V DC input power into regulated backplane power for ControlLogix controllers, communication modules, and I/O assemblies.
Built for industrial control environments, the unit delivers up to 75 Watts of output power while maintaining electrical isolation between the power input and the system backplane. The reinforced insulation structure and high inrush tolerance support stable operation in demanding automation systems.
Key Features
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Designed for Allen-Bradley ControlLogix chassis systems
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Accepts nominal 24V DC input power
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Wide operating input range from 18V to 32V DC
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Delivers up to 75W output power
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Chassis-mounted open-style construction
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Reinforced isolation between power input and backplane
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Supports distributed and centralized PLC architectures
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High inrush current capability for startup stability
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Compatible with standard ControlLogix racks
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Model Number | 1756-PB72 |
| Product Family | ControlLogix |
| Product Type | Power Supply Module |
| Mounting Style | Chassis Mount |
| Input Voltage | 18–32V DC |
| Nominal Input Voltage | 24V DC |
| Maximum Input Power | 95 Watts |
| Maximum Output Power | 75 Watts |
| Output Current at 3.3V DC | 4A |
| Output Current at 5.1V DC | 10A |
| Output Current at 24V DC | 2.8A |
| Maximum Inrush Current | 30A |
| Continuous Isolation Voltage | 250V |
| Isolation Type | Power Input to Backplane |
| Insulation Rating | Reinforced Insulation |
| Enclosure Style | Open Type |
| Recommended Screw Torque | 0.565 Nm |
| Weight | 1.54 lbs |
| Operating Temperature Range | 0°C to 60°C |
Performance Characteristics
The 1756-PB72 power supply is intended for applications requiring stable DC power distribution across multiple ControlLogix modules. It supports consistent backplane voltage delivery while protecting sensitive controller and communication hardware from input-side electrical disturbances.
Its isolated power architecture improves system reliability in electrically noisy industrial environments.
Typical Applications
Common installation environments include:
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Process automation systems
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Manufacturing production lines
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Distributed PLC control systems
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Motion control cabinets
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Water and wastewater automation
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Energy and utility monitoring systems
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Material handling equipment
Compatibility
The 1756-PB72 is compatible with Allen-Bradley ControlLogix chassis platforms and supports a wide range of ControlLogix CPUs, I/O modules, communication adapters, and specialty modules.
Before replacement or integration, confirm chassis power requirements and module loading calculations.
FAQ
What input voltage does the 1756-PB72 require?
The module operates from an 18–32V DC input range, with 24V DC as the nominal operating voltage.
How much output power can this power supply deliver?
The 1756-PB72 provides up to 75 Watts of total output power under standard operating temperatures.
Is this module isolated from the backplane?
Yes. The unit includes reinforced isolation between the incoming power source and the ControlLogix backplane.
Can this power supply be used in redundant systems?
Yes. The module is commonly used in ControlLogix systems designed for high availability and redundant power architectures, depending on system configuration requirements.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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