Allen-Bradley 1756-PB72/C ControlLogix DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB72/C ControlLogix DC Power Supply Module
The Allen-Bradley 1756-PB72/C, 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/C |
| 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 | Between power input and backplane, reinforced insulation |
| Enclosure Type | Open-style |
| 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/C provides regulated DC power conversion through the ControlLogix backplane interface. The module supports I/O density scaling by supplying chassis voltage rails required by controllers, communication modules, and I/O modules. The DC input design allows direct connection to industrial 24 VDC power sources while maintaining isolation between input power and backplane circuits.
Firmware Flash Compatibility and ControlLogix Platform Integration
The 1756-PB72/C functions as a power supply hardware module and does not execute application firmware or communication protocols. System compatibility depends on ControlLogix chassis configuration, installed module power requirements, and backplane loading calculations. The module integrates with ControlLogix platforms through the standard backplane bus architecture.
Frequently Asked Questions
Q: What DC input range is supported by the 1756-PB72/C?
A: The module accepts 18-32 VDC input with a nominal input voltage of 24 VDC.
Q: What is the maximum output power rating of the 1756-PB72/C?
A: The module provides up to 75 W output power at 0-60 deg C for ControlLogix chassis power requirements.
Q: What isolation is provided between circuits in the 1756-PB72/C?
A: The module provides 250 V continuous isolation between the power input and backplane using reinforced insulation.
Field Installation Guidelines
Install the 1756-PB72/C in the designated ControlLogix chassis power supply position and verify DC supply polarity before energizing the system. Confirm the chassis power budget includes the requirements of all installed controllers, communication modules, and I/O modules.
Route DC power wiring separately from low-level analog signal cables and communication wiring to reduce electromagnetic interference. Maintain proper cabinet grounding and ensure the open-style module is installed within a suitable protective enclosure. Verify backplane connections and input wiring before 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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