Allen-Bradley 1756-PB75 ControlLogix DC Power Supply
$123.00
$320.00
Description
Product Description
The 1756-PB75 is a DC-powered chassis supply engineered for ControlLogix automation systems. Developed by Allen-Bradley, this module delivers regulated backplane power to support controllers and I/O modules installed within a 1756 chassis.
Designed for industrial environments, the 1756-PB75 accepts a wide 24V DC nominal input and maintains stable output under varying load conditions. It is installed on the left side of the ControlLogix rack and provides sufficient power capacity for medium to large system configurations.
The unit incorporates protection against electrical stress conditions such as inrush current and supports standard industrial wiring practices, ensuring dependable long-term operation.
Key Functional Characteristics
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DC input power supply for ControlLogix chassis
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Wide operating input range for 24V DC systems
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Provides stable backplane power to controllers and I/O modules
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Designed for left-side chassis mounting
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High inrush current tolerance for industrial power systems
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Compatible with standard copper wiring (solid or stranded)
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1756-PB75 |
| Product Type | DC Power Supply Module |
| Product Family | ControlLogix |
| Nominal Input Voltage | 24 V DC |
| Input Voltage Range | 18–32 V DC |
| Maximum Input Power | 95 W |
| Maximum Output Power | 75 W (0°C to 60°C) |
| Maximum Inrush Current | 30 A |
| Isolation Voltage | 250 V (continuous) |
| Mounting Position | Left side of 1756 chassis |
| Wiring | 14 AWG copper (solid or stranded) |
| Wiring Category | Category 1 (power ports) |
| Operating Temperature | 0°C to 60°C |
| Enclosure Type | Open-style (panel enclosure required) |
| Weight | 2.16 lb |
Application Scenarios
The 1756-PB75 is commonly used in ControlLogix-based automation systems where a reliable DC power source is required. Typical installations include manufacturing lines, process control systems, and heavy-duty machinery where 24V DC infrastructure is standard.
It is particularly suitable for applications that rely on battery-backed or DC UPS systems, ensuring continued operation during AC power interruptions.
FAQ
Where is the 1756-PB75 installed in the system?
It mounts on the left side of a ControlLogix chassis and supplies power to the entire rack.
What type of input power does it require?
It operates on 24V DC nominal input, with an acceptable range of 18–32V DC.
How does it differ from AC power supply modules?
Unlike AC models, the 1756-PB75 is designed for DC-powered systems, making it suitable for applications with DC distribution or backup power systems.
Is external protection required?
Proper upstream circuit protection is recommended as part of system design, even though the module is designed to handle inrush conditions.
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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