Allen-Bradley CompactLogix 1769-PB2 Power Supply Unit

Overview
The 1769-PB2 is an Allen-Bradley CompactLogix power supply module designed to deliver reliable 24V DC power to CompactLogix and associated I/O modules. With robust protection, high inrush tolerance, and flexible mounting options, it ensures stable operation in industrial control environments.

Technical Specifications

• Brand & Model: Allen-Bradley 1769-PB2

• Product Type: CompactLogix Power Supply

• Input Voltage Range: 19.2–31.2V DC

• Output Power: 50 VA @ 24V DC

• Module Capacity: Supports up to 8 I/O modules on either side (16 total maximum)

• Isolation Voltage: 75V continuous, reinforced insulation (IEC Class 1 grounding required); routine tested at 1697V DC for 1s

• Power Dissipation: 7.5 W at 60°C

• Max Inrush Current: 30 A @ 31.2V DC

• Fuse Type: Wickmann 19193-6.3A or Littelfuse 021706.3MXP

• Wiring Category: 2 on power ports

• Wire Size: 2.5 mm² (14 AWG) solid copper, rated 90°C, max 1.2 mm insulation

• Operating Temperature Code (NA): T3C

• Dimensions (HxWxD): 11.8 x 7 x 8.7 cm

• Weight: 2 kg

Features

• High-reliability 24V DC power output

• Supports distributed I/O expansion for CompactLogix systems

• Reinforced insulation for enhanced safety and voltage isolation

• Compact size suitable for panel and DIN rail mounting

Applications
Used in industrial control systems, machine automation, and CompactLogix controller setups where stable 24V DC power and module expansion are required.

FAQ

Q: How many I/O modules can the 1769-PB2 power?
A: Up to 16 modules, 8 on each side of the power supply.

Q: What is the maximum input voltage range?
A: 19.2 to 31.2 V DC.

Q: Can it handle high inrush currents?
A: Yes, up to 30A at 31.2V DC.