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Allen-Bradley 1756-PB72
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 1756-PB72 is a powerful and dependable 24V DC power supply module, specifically engineered for flawless integration into your ControlLogix chassis. This vital component delivers a substantial 72 watts, guaranteeing stable performance for all modules within your ControlLogix backplane. Crafted for challenging industrial environments, its broad input voltage range of 19.2V to 32V DC offers remarkable adaptability, making it an ideal choice for systems sourcing power from various industrial DC supplies, such as battery banks or regulated power sources. Its compact design and inherent high reliability position it as an excellent option for essential distributed and remote I/O applications, especially where 24V DC is the required or preferred control voltage. Expect consistent operation and extended longevity with this premium Allen-Bradley power solution.Key Features Optimized for ControlLogix: Specifically designed for perfect integration and steady power delivery within Allen-Bradley ControlLogix chassis (1756-A4 to A17 series). Wide DC Input Range: Operates efficiently across a broad input voltage of 19.2–32V DC, accommodating diverse industrial power sources. High Power Output: Provides a robust 72W maximum output power to ensure stable operation of all connected ControlLogix modules. Space-Saving Design: Compact dimensions allow for efficient installation, fitting precisely into the left-most slot of any compatible chassis. Clear Status Indicators: Equipped with intuitive LED indicators for instantaneous power status and fault detection, simplifying troubleshooting. Enhanced Reliability: Built with overvoltage, overcurrent, and thermal shutdown protection features to safeguard your system. Efficient Cooling: Utilizes natural convection cooling for silent and maintenance-free operation in challenging environments. Technical Specifications Catalog Number: 1756-PB72 Input Voltage: 24V DC nominal (range: 19.2–32V DC) Output Power: 72 watts maximum Power Supply Type: Wide-range DC input Backplane Output Current: 4 A @ 5.1V DC 1.5 A @ 24V DC Chassis Compatibility: Compatible with ControlLogix chassis series (1756-A4 to A17) Mounting Location: Designed for the left-most slot in any ControlLogix chassis Cooling Method: Natural convection Operating Temperature: 0°C to +60°C Weight: Approximately 1.2 kg (2.6 lbs) Protection Features: Includes robust features for overvoltage, overcurrent, and thermal shutdown Applications ControlLogix PLC Systems: The primary power solution for processors and various I/O modules within critical automation setups. Distributed Control Systems (DCS): Ideal for powering components in field-mounted cabinets and remote installations where reliability is paramount. Battery-Backed or Mobile Systems: Perfect for ensuring continuous operation in 24V DC mobile power solutions and applications requiring uninterruptible power. OEM Panels and Machine Control: Its compact size and efficient performance make it an excellent choice for integrated and space-constrained machine control systems. Harsh Industrial Environments: Engineered to withstand the rigors of industrial settings, providing stable power in challenging conditions. Retrofit and Upgrade Projects: A reliable replacement or upgrade for existing ControlLogix power supply units, ensuring system longevity. Why ChooseOpt for the Allen-Bradley 1756-PB72 for its exceptional performance and industry-leading quality. This power supply offersUnmatched ReliabilityTrust in Allen-Bradley's reputation for industrial durability and continuous operation, even in demanding applications.Broad CompatibilitySeamlessly integrates with a wide array of ControlLogix chassis, offering flexible deployment options for your automation architecture.Optimized Power DeliveryProvides a consistent and ample 72W output, effectively supporting high-density module configurations in your ControlLogix backplane.Effortless IntegrationDesigned for easy installation into the specified chassis slot, minimizing downtime and maximizing productivity.
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Allen-Bradley 1756-PB72
Overview
This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
- Engineered to integrate inside ControlLogix installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Catalog Number: 1756-PB72
- Input Voltage: 24V DC nominal (range: 19.2–32V DC)
- Output Power: 72 watts maximum
- Power Supply Type: Wide-range DC input
- Backplane Output Current:
- 4 A @ 5.1V DC
- 1.5 A @ 24V DC
- Chassis Compatibility: Compatible with ControlLogix chassis series (1756-A4 to A17)
- Mounting Location: Designed for the left-most slot in any ControlLogix chassis
- Cooling Method: Natural convection
- Operating Temperature: 0°C to +60°C
- Weight: Approximately 1.2 kg (2.6 lbs)
- Protection Features: Includes robust features for overvoltage, overcurrent, and thermal shutdown
Applications
- ControlLogix PLC Systems: The primary power solution for processors and various I/O modules within critical automation setups.
- Distributed Control Systems (DCS): Ideal for powering components in field-mounted cabinets and remote installations where reliability is paramount.
- Battery-Backed or Mobile Systems: Perfect for ensuring continuous operation in 24V DC mobile power solutions and applications requiring uninterruptible power.
- OEM Panels and Machine Control: Its compact size and efficient performance make it an excellent choice for integrated and space-constrained machine control systems.
- Harsh Industrial Environments: Engineered to withstand the rigors of industrial settings, providing stable power in challenging conditions.
- Retrofit and Upgrade Projects: A reliable replacement or upgrade for existing ControlLogix power supply units, ensuring system longevity.
Why Choose the 1756-PB72?
Opt for the Allen-Bradley 1756-PB72 for its exceptional performance and industry-leading quality. This power supply offers
Unmatched Reliability
Trust in Allen-Bradley's reputation for industrial durability and continuous operation, even in demanding applications.
Broad Compatibility
Seamlessly integrates with a wide array of ControlLogix chassis, offering flexible deployment options for your automation architecture.
Optimized Power Delivery
Provides a consistent and ample 72W output, effectively supporting high-density module configurations in your ControlLogix backplane.
Effortless Integration
Designed for easy installation into the specified chassis slot, minimizing downtime and maximizing productivity.
Availability & Shipping
- ▸In stock: 1756-PB72 ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 1756-PB72 ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
Related Allen-Bradley resources
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.