Allen-Bradley 1756-PB72/B ControlLogix DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB72/B ControlLogix DC Power Supply Module
The Allen-Bradley 1756-PB72/B, also cataloged as the 1756-PB72 ControlLogix DC Power Supply Module, operates as a dedicated hardware component for DC-to-DC power conversion within ControlLogix chassis platforms. It converts 18-32 VDC input into regulated backplane power for controllers, communication modules, and I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PB72/B |
| Brand | Allen-Bradley |
| Origin | United States |
| Product Type | ControlLogix DC Power Supply Module |
| Series | Bulletin 1756 ControlLogix |
| Input Voltage | 18-32 VDC |
| Nominal Input Voltage | 24 VDC |
| Maximum Input Power | 95 W |
| Maximum Inrush Current | 30 A |
| Output Voltage | 5.1 VDC and 3.3 VDC |
| Output Current | 5.1 VDC @ 13 A (50 deg C), 10 A (60 deg C); 3.3 VDC @ 4 A |
| Maximum Output Power | 75 W at 0-60 deg C |
| Hold-up Time | 4 cycles @ 75 W, 5 cycles @ 60 W |
| Continuous Isolation Voltage | 250 V |
| Isolation Type | Power input to backplane, reinforced insulation |
| Weight | 0.94 kg |
| Dimensions | 140 x 78 x 145 mm |
| Operating Temp | 0-60 deg C |
| Power Consumption | Maximum input power 95 W |
EtherNet/IP and ControlLogix Backplane Power Characteristics
The 1756-PB72/B provides regulated DC power conversion through the ControlLogix backplane interface. The module supports I/O density scaling by supplying defined chassis voltage rails for controllers, communication modules, and I/O modules. Its DC input architecture allows integration with 24 VDC industrial power sources while maintaining electrical separation between input power and backplane circuits.
Firmware Flash Compatibility and ControlLogix Platform Integration
The 1756-PB72/B operates as a power supply hardware component and does not contain user application processing functions. Compatibility is determined by the ControlLogix chassis configuration, installed module power requirements, and backplane loading calculations. The module operates within ControlLogix systems using the standard backplane bus structure.
Frequently Asked Questions
Q: What DC input range does the 1756-PB72/B support?
A: The module supports an input voltage range of 18-32 VDC with a nominal input voltage of 24 VDC.
Q: What output power capacity is provided by the 1756-PB72/B?
A: The module provides a maximum output power rating of 75 W at 0-60 deg C for ControlLogix chassis power requirements.
Q: What isolation is provided by the 1756-PB72/B?
A: The module provides 250 V continuous isolation between the power input and the ControlLogix backplane using reinforced insulation.
Field Installation Guidelines
Install the 1756-PB72/B in the designated ControlLogix chassis power supply position and verify the DC source voltage before energizing the system. Connect the 24 VDC supply wiring according to the specified polarity and apply appropriate protective grounding practices.
Separate DC power wiring from low-level analog signal wiring and communication cables to reduce electromagnetic interference. Confirm chassis mounting, backplane engagement, and enclosure conditions before operation. Verify input and output wiring connections during commissioning.
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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