Allen-Bradley 1756-PB72/R ControlLogix Redundant DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB72/R ControlLogix Redundant DC Power Supply Module
Configured for regulated DC backplane power conversion in ControlLogix chassis systems, the Allen-Bradley 1756-PB72/R (1756-PB72 Redundant DC Power Supply Module) provides direct physical/electrical execution for redundant DC power distribution within ControlLogix platforms. The module accepts 19-32 VDC input and supplies regulated power to controllers, communication modules, and I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PB72/R |
| Brand | Allen-Bradley |
| Product Type | ControlLogix Redundant DC Power Supply Module |
| Origin | United States |
| Weight | 1.54 lbs |
| Dimensions | 140 x 78 x 145 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Max input power 120 W @ 50 deg C; 100 W @ 60 deg C |
| Input Voltage | 19-32 VDC |
| Nominal Input Voltage | 24 VDC |
| Output Power | 75 W maximum |
| Output Voltage | 5.1 VDC, 3.3 VDC |
| Output Current Capacity | 5.1 VDC @ 13 A, 3.3 VDC @ 4 A |
| Inrush Current | 20 A maximum |
| Isolation Voltage | 250 V continuous, reinforced insulation |
| Redundancy Support | Redundant DC power supply configuration |
| Enclosure Type | Open-style chassis mount |
| Series | Bulletin 1756 ControlLogix |
Industrial Control Platform Integration
The 1756-PB72/R supports ControlLogix backplane power requirements through regulated DC conversion and redundancy configuration capability. The module interfaces with the chassis power bus to supply operating voltage for processor modules, communication modules, and I/O assemblies.
The ControlLogix platform uses backplane bus communication for module-to-module data exchange. Power supply selection and chassis loading must be considered when scaling I/O density and communication module quantities within a single chassis configuration.
Frequently Asked Questions
Q: What input power source is required for the 1756-PB72/R?
A: The module accepts a nominal 24 VDC input with an operating range of 19-32 VDC.
Q: What is the maximum output capability of the module?
A: The module provides up to 75 W maximum output power with regulated backplane power distribution.
Q: Does the module provide electrical isolation?
A: Yes. The power input and backplane interface include 250 V continuous isolation with reinforced insulation.
Field Installation Guidelines
Install the module in the left-side power supply position of a compatible ControlLogix chassis. Verify chassis power loading before connecting controllers, communication modules, and I/O modules.
Use correctly rated DC supply wiring and maintain separation between power conductors and high-noise signal cables. Connect protective grounding according to cabinet grounding practices. Ensure cable routing minimizes electromagnetic interference coupling.
For redundant power configurations, verify the wiring arrangement and power supply status indication before applying system voltage. Confirm that the chassis and installed modules are compatible with the selected power supply configuration.
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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