1756-PB50 Allen-Bradley ControlLogix Redundant Power Supply Module for 1756 Series Systems

Allen-Bradley 1756-PB50

1756-PB50 24V Power Supply

ControlLogix PB50 Module

1756-PB50

The Allen-Bradley 1756-PB50 is a 24V power supply module for ControlLogix systems, delivering reliable power to PB50 modules and connected components, ensuring efficient automation operation.

Specification

SEODescription

The Allen-Bradley 1756-PB50 is a 24V DC power supply module designed for the ControlLogix platform, delivering 5A of output current to support up to 10 adjacent ControlLogix modules. As a critical component of the ControlLogix PB50 series, it operates within a 19.2–28.8V DC input range and ensures stable power distribution across the chassis. Compatible with ControlNet, EtherNet/IP, and other communication protocols, it integrates seamlessly into automation systems. The module operates in temperatures ranging from 0–60°C and is widely used in manufacturing, energy, and heavy industries for its reliability and modular scalability. Key advantages include robust performance and easy integration, though it requires precise voltage regulation and professional installation to avoid compatibility issues with non-Allen-Bradley components.

SEOSpecification

Parameter	Specification
Product Model	Allen-Bradley 1756-PB50
Power Supply Type	24V DC Redundant Power Supply
Input Voltage Range	120-240V AC (47-63Hz)
Output Power	50W Continuous
Output Current (24V)	5A @ 24V DC (Line A) 20A @ 24V DC (Line B)
Module Compatibility	ControlLogix PB50 Module for ControlLogix 5560/5570 Systems
Connector Type	Removable 20-pin Terminal Block
Operating Temperature	0°C to 60°C (32°F to 140°F)
Certifications	UL Listed, CE Marked, ATEX/IECEx Compliant
Redundancy Support	Parallel/Series Power Supply Redundancy
Module Dimensions	135 x 45 x 120 mm (5.3 x 1.8 x 4.7 in)
Weight	0.68 kg (1.5 lbs)

SEOQandA

question:Why choose us for purchasing?
answer:As Asia's leading industrial automation trading company with 20 years of experience, we ensure reliable quality and prioritize reputation, with 85% repeat clients.
question:Why buy from your company?
answer:Trusted for 20 years in industrial automation, we guarantee product reliability, uphold strong reputation, and maintain 85% customer retention.
question:Do you accept payment after delivery?
answer:We require advance payment; terms may vary based on credit evaluation and order specifics.

SEOQandA_Product

question:Why does the 1756-PB50 not power up?
answer:Verify input voltage matches 24V DC and check terminal connections for tightness or damage.
question:How to resolve 1756-PB50 overheating?
answer:Ensure proper ventilation, clear airflow obstructions, and verify ambient temperature is within 0-60°C.
question:What if 1756-PB50's status LED is off?
answer:Confirm power input is active, check fuse integrity, and replace the module if faults persist.
question:Why does 1756-PB50 output voltage fluctuate?
answer:Inspect for overloaded circuits, ensure total load is ≤50W, and test for short circuits in downstream devices.
question:How to fix 1756-PB50 compatibility issues?
answer:Validate chassis slot compatibility, confirm firmware matches ControlLogix system requirements.