1734-EXT3 | Allen-Bradley POINT I/O Power Supply



Introduction:
Allen-Bradley 1734-EXT3 POINT I/O expansion power supply module. 24V DC input, supports up to 8 I/O modules. New original in stock.
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Product Overview
The Allen-Bradley 1734-EXT3 is an expansion power supply module for the POINT I/O platform. It provides isolated power to I/O modules in a remote bank. This module ensures reliable operation in distributed control systems.
It supports up to 8 additional I/O modules per bank. The unit connects directly to the 1734-TB terminal base. It requires a 24V DC input for operation.
This module is ideal for expanding system capacity without adding a new network node. It maintains communication integrity across the I/O bank.

Application Scenarios
The 1734-EXT3 is used in industrial automation for distributed I/O. It is common in manufacturing, processing, and material handling systems.
Typical applications include:
- Remote I/O banks in conveyor systems
- Process control panels with limited cabinet space
- Machine builder applications requiring modular expansion
- Automotive assembly lines with distributed control
Technical Specifications

- Input Voltage: 24V DC
- Output Power: 10V DC at 1.5A
- Isolation: 50V continuous
- Power Dissipation: 5.5W maximum
- Operating Temperature: -20 to 55°C
- Storage Temperature: -40 to 85°C
- Relative Humidity: 5% to 95% non-condensing
- Dimensions: 56 x 87 x 55 mm
- Weight: 0.15 kg
Installation & Maintenance Guide

Mount the module onto a 1734-TB terminal base. Ensure the base is properly attached to a DIN rail. Connect the 24V DC power supply to the base.
Use a dedicated power supply for the expansion bank. Do not exceed the maximum current rating. Check the module status LED for proper operation.
For maintenance, inspect connections annually. Keep the module free of dust and debris. Replace if the power LED fails to illuminate.
Frequently Asked Questions (FAQ)
What is the primary function of 1734-EXT3?
The 1734-EXT3 supplies isolated power to additional I/O modules in a POINT I/O expansion bank.
How many I/O modules can 1734-EXT3 support?
It supports up to 8 additional I/O modules per expansion bank.
What voltage does 1734-EXT3 require?
It requires a 24V DC input from an external power supply.
Is 1734-EXT3 compatible with all POINT I/O modules?
Yes, it is compatible with the entire POINT I/O family of modules.
Does 1734-EXT3 require a separate network connection?
No, it uses the backplane communication of the POINT I/O system.
