1756-PB50 Allen Bradley Power supply module
Specification
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Product Description
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The 1756-PB50 is a DC power supply module designed for the Allen-Bradley ControlLogix 1756 series chassis. It converts a nominal 24 V DC input (range 18–32 V DC)
into regulated DC power rails used to power the ControlLogix backplane and attached modules such as CPUs, I/O modules, and communication cards.
It mounts in the designated leftmost slot of a 1756 chassis and supplies power across multiple internal voltage levels to support the
system’s operation.This module is widely used in industrial automation, process control, and machine control systems
where reliable and stable DC power is critical to maintain uptime and ensure consistent performance.
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| More Technical Data |
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Product Type
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ControlLogix DC Power Supply
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Input Voltage Range
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18–32 V DC (Nominal 24 V DC)
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Isolation Voltage
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Continuous 250 V
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| Frequently Asked Questions |
1. What is the 1756-PB50 used for?
The 1756-PB50 supplies regulated DC power to a ControlLogix chassis and its modules, converting a 24 V DC input into the various rails required by the system. Without it, the ControlLogix rack and modules will not operate.
2. What voltages and currents does it provide?
It provides several regulated DC outputs:
These rails power logic circuits and backplane distribution to the chassis modules.
3. What input power does it require?
It requires a DC input between 18 V and 32 V, with 24 V nominal. This is typically provided by an external 24 V DC industrial power source.
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