Allen-Bradley 1769-PB2 I/O Power Supply

Product Overview

The Allen-Bradley 1769-PB2 is a highly reliable CompactLogix I/O power supply designed to ensure seamless operation in industrial automation systems. This power supply module supports a wide input voltage range of 19.2V DC to 31.2V DC, providing flexibility for various applications. Additionally, it delivers an impressive current capacity of 2.0 A at 5V DC and 0.8 A at 24V DC, allowing it to efficiently power up to sixteen (16) CompactLogix modules. You can easily integrate the 1769-PB2 module into your system with its versatile mounting options, making it ideal for both CompactLogix racks and expansion I/O banks.

Key Features

Manufacturer: Allen-Bradley
Product Line: CompactLogix
Part Number: 1769-PB2
Module Type: I/O Power Supply
Power Supply Distance Rating: Supports up to 16 I/O modules
Certifications: c-UL-us, CE, C-Tick
Wire Size: 14 AWG solid copper wire (2.5 mm²), insulation rated at 90°C (194°F)
Enclosure: Open type
Series: A and B

Technical Specifications

Specification	Details
Input Voltage Range	19.2V DC to 31.2V DC
Nominal Voltage	24V DC
Current Capacity @ 5V DC	2.0 A
Current Capacity @ 24V DC	0.8 A
Inrush Current (max)	30 A @ 31.2V DC
Power Consumption	7.5 W @ 60°C (140°F)
Power Supply Distance	Up to 16 modules (8 on each side)
Weight	0.75 lbs (0.34 kg)
Dimensions	118 x 70 x 87 mm (4.65 x 2.76 x 3.43 in.)
Fuse Type	Littelfuse 02153.15MXP; Wickmann 19195-3.15A
Wire Type	Copper, 90°C rated
Mounting Type	Panel or DIN rail mounting

Dimensions and Weight

Weight: 0.75 lbs (0.34 kg)
Dimensions: 118 x 70 x 87 mm (4.65 x 2.76 x 3.43 inches)

Performance and Reliability

The 1769-PB2 I/O power supply module provides consistent and reliable performance, especially with its wide input voltage range. It efficiently handles an inrush current of 30 A at 31.2V DC, ensuring smooth startup. Moreover, it delivers 2.0 A at 5V DC and 0.8 A at 24V DC, which allows it to power up to sixteen CompactLogix I/O modules without any issues.

Notably, the module operates with a power consumption of 7.5 W at 60°C (140°F), making it energy-efficient for industrial automation systems. In terms of safety, the 1769-PB2 includes internal fuse protection, using Littelfuse or Wickmann fuses to prevent electrical faults. These protective measures help ensure that your system stays secure during operation.

Mounting and Installation

The 1769-PB2 offers flexibility in installation. It supports both panel mounting and DIN rail mounting, allowing you to easily integrate it into your system setup. Additionally, the open-type enclosure ensures the module fits seamlessly into the CompactLogix assembly and offers sufficient protection from industrial elements. You can be confident that the power supply will perform well in various environments.

Wire Connection

When making signal wiring connections, the 1769-PB2 requires 14 AWG solid copper wire with an insulation rating of 90°C (194°F). The finger-safe covers and barrier-type terminal blocks ensure that the connections are safe and secure during installation. It is crucial to use the right wire size and insulation thickness to guarantee that the module operates as intended.

Safety and Protection

The 1769-PB2 includes finger-safe covers and upper and lower mounting tabs, making installation straightforward and safe. Furthermore, the fuse protection (using Wickmann 19193-6.3A or Littelfuse 021706.3MXP) safeguards the power supply from overloads, ensuring that your system is protected from electrical hazards.

Conclusion

To sum up, the Allen-Bradley 1769-PB2 I/O power supply is a highly reliable and versatile solution for powering your CompactLogix automation system. It delivers stable power to up to 16 modules, with 2.0 A at 5V DC and 0.8 A at 24V DC. Whether you need a power supply for a CompactLogix rack or an expansion I/O bank, the 1769-PB2 module ensures consistent, safe, and efficient operation.