Allen-Bradley 1756-PB75/C ControlLogix DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB75/C ControlLogix DC Power Supply Module
The Allen-Bradley 1756-PB75/C, also cataloged as the 1756-PB75 DC Power Supply Module, operates as a dedicated hardware component for regulated DC power conversion within ControlLogix chassis platforms. The module converts 24 VDC input power into multiple backplane voltage outputs for installed controller, communication, and I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PB75/C |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 2.16 lbs |
| Dimensions | 140 x 112 x 145 mm |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | 95 W maximum input power |
| Module Type | ControlLogix DC Power Supply Module |
| Product Family | ControlLogix |
| Input Voltage | 24 VDC nominal, 18 to 32 VDC range |
| Maximum Output Power | 75 W at 0 deg C to 60 deg C |
| Backplane Voltages | 1.2 VDC, 3.3 VDC, 5.1 VDC, 24 VDC |
| Current Capacity | 1.5 A at 1.2 VDC, 4 A at 3.3 VDC, 13 A at 5.1 VDC, 2.8 A at 24 VDC |
| Hold-up Time | 35 ms at 18 VDC, 40 ms at 24 VDC and 32 VDC |
| Maximum Inrush Current | 30 A peak |
| Storage Temperature | -40 deg C to 85 deg C |
| Chassis Compatibility | 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 Series C |
| Installation Location | Left side of ControlLogix chassis |
| Wiring Requirement | 2.5 mm2 copper wire, insulation thickness <= 1.2 mm, torque 0.8 N.m |
| Insulation Test | Reinforced insulation tested at 3500 VDC for 60 seconds |
| Design Format | Open-style rack mount power supply |
Backplane Bus Communication and I/O Density Characteristics
The 1756-PB75/C provides regulated DC rails through the ControlLogix backplane bus architecture. The module supports I/O density scaling by distributing defined voltage levels to multiple chassis modules while maintaining separation between external field power input and internal backplane power distribution.
The power supply module operates as a chassis-level power source and does not execute application logic. Its electrical output supports ControlLogix processor modules, communication modules, and I/O modules installed within compatible chassis configurations.
The module is compatible with ControlLogix hardware platform firmware flash procedures and maintains electrical compatibility with supported chassis assemblies.
Frequently Asked Questions (FAQ)
Q: What input voltage range is supported by the 1756-PB75/C?
A: The module accepts 24 VDC nominal input with an operating range of 18 to 32 VDC.
Q: Which ControlLogix chassis configurations support the 1756-PB75/C?
A: The module supports 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 Series C chassis configurations.
Q: What voltage rails are supplied to the ControlLogix backplane?
A: The module provides regulated 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC backplane outputs.
Field Installation Guidelines
Install the 1756-PB75/C on the left side of the compatible ControlLogix chassis and verify chassis power requirements before operation. Connect the 24 VDC input using specified copper wiring and confirm correct polarity at the terminal connection.
Route DC supply wiring separately from high-voltage conductors and switching circuits to reduce electromagnetic interference. Maintain proper cabinet grounding practices and apply shield termination methods according to the control system grounding design.
Before commissioning, calculate total chassis power loading from all installed modules and verify that the required backplane current remains within the power supply output capacity.
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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