Allen-Bradley 1771-P5E PLC-5 Series DC Power Supply Module

Description

The Allen-Bradley 1771-P5E Power Supply Module provides reliable DC power to the PLC-5 system backplane and connected I/O modules. Designed for industrial automation environments, it maintains consistent 24V DC power output with selectable power-loss delay, ensuring smooth operation and controlled system recovery after power interruptions. Its robust electrical design and high current capacity make it suitable for demanding applications.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: PLC-5 Series

• Model Number: 1771-P5E

• Product Type: Power Supply Module

• Weight: 2.56 lbs (1.16 kg)

• Nominal Input Voltage: 24V DC (Selectable Power-Loss Time Delay)

• Input Voltage Range: 20.5–30V DC

• Maximum Real Input Power: 57 W

• Backplane Output Current: 8 A at 5V DC

• Frequency: DC (Rectified Sine)

• Fuse Rating: 5A, 32V, Normal-Blow

• Compatible Cabling: 1771-CT (Parallel configuration with -P10, -P5 modules)

Application Scenarios

The 1771-P5E is ideal for Allen-Bradley PLC-5 systems used in process control, manufacturing automation, and other applications requiring stable DC power.
Common use cases include:

• Factory automation and control systems

• Packaging and assembly equipment

• Continuous process monitoring

• Distributed control systems (DCS)

Comparison with Similar Models

• 1771-P5: Standard 24V DC model without selectable delay

• 1771-P6: AC input variant with extended input range

• 1771-P7: Redundant version for fault-tolerant control systems

FAQs

Q1: What chassis can the 1771-P5E be used with?
A1: It is compatible with Allen-Bradley PLC-5 I/O chassis modules.

Q2: Can multiple power supplies be used together?
A2: Yes, by using 1771-CT cabling, multiple units can be paralleled for load sharing or redundancy.

Q3: Does the module include built-in overload protection?
A3: Yes, it includes a 5A, 32V normal-blow fuse and internal current limiting to protect against short circuits and overloads.