1769-PB2 | Allen-Bradley CompactLogix I/O Power Supply Supplier

What Is the 1769-PB2?

When your CompactLogix system requires reliable I/O power distribution, the 1769-PB2 from Allen-Bradley delivers consistent performance. This I/O power supply module is part of the CompactLogix family and operates with an input voltage range of 19.2-31.2 VDC. It provides 2.0 A at 5 VDC and 0.8 A at 24 VDC, supporting up to 16 I/O modules in a single assembly. The module is manufactured by Rockwell Automation and carries certifications including c-UL-us, CE, and C-Tick.

Core Specs of the 1769-PB2

• Input Voltage: 19.2-31.2 VDC with nominal 24 VDC.
• Current Capacity: 2.0 A at 5 VDC and 0.8 A at 24 VDC.
• Power Consumption: 7.5 W at 60 °C (140 °F).
• Inrush Current: 30 A maximum at 31.2 VDC.
• Power Supply Distance Rating: 8 modules per side, for a total of 16 modules.
• Dimensions (HxWxD): 118 x 70 x 87 mm (4.65 x 2.76 x 3.43 in.), height with tabs 138 mm (5.43 in.).
• Weight: 485 g (1.07 lb).
• Wire Size: 14 AWG (2.5 mm²) solid copper, 90 °C rated, 1.2 mm insulation max.
• Fuse Type: Littelfuse 02153.15MXP or Wickmann 19195-3.15A.

One distinctive spec is the power supply distance rating of 8, which allows up to 8 I/O modules on each side. This means you can expand your system without adding extra power supplies, reducing overall cost and complexity.

Applications for the 1769-PB2

In industrial automation, the 1769-PB2 is ideal for powering CompactLogix I/O modules in manufacturing lines, packaging systems, and material handling. For example, in a conveyor control system, this supply ensures stable 5 VDC and 24 VDC power to sensors and actuators. Its open-type enclosure requires mounting inside a protective cabinet, making it suitable for factory floor environments.

Installation Guide for the 1769-PB2

Mount the 1769-PB2 directly to a panel or DIN rail following CompactLogix guidelines. Use 14 AWG solid copper wire with 90 °C rating for connections. Ensure the enclosure provides adequate protection against dust and moisture. The module includes finger-safe covers and barrier-type terminal blocks for secure wiring. Connect up to 8 I/O modules on either side of the power supply for a maximum of 16 modules.

Maintenance Tips for the 1769-PB2

Inspect the 1769-PB2 periodically for signs of wear or overheating. Check the internal fuse (Littelfuse 02153.15MXP or Wickmann 19195-3.15A) if the module stops outputting power. Keep the enclosure clean and ensure ambient temperature stays within 32 to 140 °F (0 to 60 °C) to maintain reliability. Regular inspection per the manufacturer's manual helps prevent downtime.

Compatibility and Integration

The 1769-PB2 integrates seamlessly with CompactLogix controllers and I/O modules from Allen-Bradley. It works with Series A and B modules and supports direct panel or DIN rail mounting. For systems requiring additional I/O, this supply can be placed in expansion banks to extend the network.

FAQs About the 1769-PB2

Q: What is the input voltage range of the 1769-PB2?

A: The input voltage range is 19.2-31.2 VDC, with a nominal voltage of 24 VDC.

Q: How many I/O modules can the 1769-PB2 support?

A: It can support up to 16 modules total, with 8 modules on each side of the power supply.

Q: What type of fuse does the 1769-PB2 use?

A: It uses Littelfuse 02153.15MXP or Wickmann 19195-3.15A fuses.

Q: What certifications does the 1769-PB2 hold?

A: It holds c-UL-us, CE, and C-Tick certifications.

Q: What wire size is recommended for the 1769-PB2?

A: Use 14 AWG (2.5 mm²) solid copper wire rated at 90 °C or higher with 1.2 mm insulation max.

Product Support and Availability

The 1769-PB2 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and availability. We are your trusted supplier for Allen-Bradley industrial automation parts.