Allen-Bradley 1756-PB75/B ControlLogix DC Power Supply Module
$123.00
$320.00
Description
Allen-Bradley 1756-PB75/B ControlLogix DC Power Supply Module
Configured for regulated chassis power conversion in ControlLogix systems, the Allen-Bradley 1756-PB75/B (1756-PB75 DC Power Supply Module) provides direct electrical execution for generating backplane voltage rails from a 24 VDC input source. The module supplies 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC outputs for installed ControlLogix modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PB75/B |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.0 kg |
| Dimensions | 140 x 114 x 147 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 |
| 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 B and 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 |
Industrial Control Backplane Power Characteristics
The 1756-PB75/B operates as a ControlLogix chassis power conversion module, supplying regulated DC rails through the backplane bus. The module supports I/O density scaling by providing defined current capacity for multiple installed controller, communication, and I/O modules.
The power supply architecture supports ControlLogix system expansion by maintaining separate voltage outputs for different backplane loads. The unit interfaces with the chassis backplane without executing application logic functions and is configured as the primary DC power source for compatible rack assemblies.
Firmware flash compatibility is maintained within the ControlLogix hardware platform, allowing the power supply module to operate with supported chassis configurations without affecting controller application firmware functions.
Frequently Asked Questions (FAQ)
Q: What voltage input is required for the 1756-PB75/B?
A: The module requires a 24 VDC nominal input and supports an input range of 18 to 32 VDC.
Q: Which backplane voltages are provided by the 1756-PB75/B?
A: The module generates regulated 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC backplane voltage outputs.
Q: Where is the 1756-PB75/B installed in a ControlLogix chassis?
A: The module is installed on the left side of compatible 1756 chassis assemblies.
Field Installation Guidelines
Install the 1756-PB75/B in the designated left-side power supply position of the compatible ControlLogix chassis. Confirm the chassis model and module placement before applying input power.
Connect the 24 VDC supply using the specified copper conductors and verify correct polarity at the power terminals. Route DC power wiring separately from high-voltage circuits and switching loads to reduce electrical interference.
Apply standard industrial cabinet grounding practices. Where shielded cables are used, terminate shields according to the control panel grounding design. Verify total chassis power demand against the power supply output capability before system startup.
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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