Allen-Bradley 1756-PB75/A ControlLogix DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB75/A ControlLogix DC Power Supply Module
The Allen-Bradley 1756-PB75/A, also cataloged as the 1756-PB75 DC Power Supply Module, operates as a dedicated hardware component for regulated DC power distribution within ControlLogix chassis platforms. The module converts 24 VDC input power into multiple backplane voltage rails for installed controller and I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PB75/A |
| 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 |
| 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 |
| Maximum Inrush Current | 30 A peak |
| Hold-up Performance | 10 ms interruption, 60% voltage dips for 100 ms, 100% voltage dips for 50 ms |
| Isolation Voltage | 250 V continuous isolation voltage |
| Insulation Test | Reinforced insulation tested at 3500 VDC for 60 seconds |
| Chassis Compatibility | 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 |
| Module Location | Left side of 1756 chassis |
| Wiring Requirement | 14 AWG stranded or solid copper wire, Category 1 power wiring |
ControlLogix Backplane Power Distribution Characteristics
The 1756-PB75/A provides regulated multi-voltage output through the ControlLogix backplane bus. The module supports I/O density scaling by supplying defined current capacity across the chassis voltage rails, including the 5.1 VDC and 24 VDC distribution paths used by installed modules.
The unit is designed for ControlLogix system architectures requiring chassis-level DC power conversion. The power supply module operates independently from application logic execution while maintaining electrical separation between external 24 VDC input and internal backplane distribution.
The module supports firmware flash compatibility within the ControlLogix hardware platform and maintains compatibility with chassis configurations specified for the 1756 product family.
Frequently Asked Questions (FAQ)
Q: What is the installation position of the 1756-PB75/A in a ControlLogix system?
A: The module is installed on the left side of the 1756 chassis and provides power to the chassis backplane.
Q: What backplane voltages are generated by the 1756-PB75/A?
A: The power supply provides regulated 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC backplane voltage outputs.
Q: What type of field wiring is specified for the power input connection?
A: The module uses 14 AWG stranded or solid copper wire with Category 1 wiring classification on the power ports.
Field Installation Guidelines
Install the 1756-PB75/A only in compatible 1756 chassis configurations and mount the module in the designated left-side power supply position. Verify input polarity and DC voltage range before energizing the system.
Use copper conductors suitable for industrial control power wiring and maintain separation between DC power cables and high-noise switching circuits. Connect protective grounding according to the control cabinet grounding design and apply standard shielding practices where shielded wiring is used.
Before commissioning, verify total chassis power loading against the installed module requirements and confirm that the power supply output capacity is sufficient for all connected ControlLogix modules.
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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