1734-EP24DC | Allen-Bradley POINT I/O Expansion Power Supply

Introduction to the 1734-EP24DC

As industrial automation evolves, the demand for modular and scalable I/O systems grows. The 1734-EP24DC from Allen-Bradley addresses this need by providing reliable expansion power for POINT I/O installations. Designed to extend backplane bus power, this module ensures consistent operation across multiple devices.

Key Features & Technical Specs

• Manufactured by Rockwell Automation, the 1734-EP24DC is a dedicated expansion power supply for the POINT I/O series.
• It delivers a POINTBus output current of 1 A at 10–19.2V input and 1.3 A at 19.2–28.8V input for horizontal mounting, and 1 A at 10–28.8V input for vertical mounting.
• The module offers reverse polarity overvoltage protection and an inrush current rating of 6 amps for 10 milliseconds.
• Power consumption is 9.8 Watts, with a power dissipation of 3 Watts and thermal dissipation of 10 BTU/hour.
• Isolation voltage is 50 Volts continuous, and field power is 24 Volts DC.
• The power supply current is 10 amps, and the module supports both horizontal and vertical mounting orientations.

Applications & Use Cases

In manufacturing environments where space is limited, the 1734-EP24DC enables compact system layouts by creating new field voltage partitions. It is ideal for applications requiring up to 17 I/O modules on a single backplane, such as material handling or packaging lines. The module’s ability to separate field power from adjacent I/O modules enhances system organization and reduces wiring complexity.

Installation & Setup

Mount the 1734-EP24DC either horizontally or vertically to match your POINT I/O system orientation. Ensure the input voltage is within the 10–28.8VDC range before connecting. The module automatically passes 24V DC field power to modules on its right side, simplifying daisy-chaining. Always verify that the total current draw of downstream modules does not exceed the POINTBus output current limits for your mounting configuration.

Maintenance & Reliability

Regular visual inspection of the 1734-EP24DC is recommended to ensure the dark gray housing remains free of damage. Operate within the specified temperature and humidity ranges to maintain reliability. The module’s reverse polarity protection helps prevent damage from wiring errors, reducing downtime.

Compatibility & Integration

The 1734-EP24DC is compatible with all 1734 POINT I/O adapters, making it a seamless addition to existing Rockwell Automation systems. It supports up to 17 modules when configured correctly, depending on current ratings. This expansion power supply integrates easily into both new and retrofit projects.

FAQ about 1734-EP24DC

Q: What is the input voltage range for the 1734-EP24DC?

A: The input voltage range is 10–28.8VDC, with a nominal rating of 24VDC.

Q: How many modules can the 1734-EP24DC support?

A: It supports installation of 4 to 17 POINT I/O modules, depending on their current draw.

Q: Does the 1734-EP24DC provide overvoltage protection?

A: Yes, it includes reverse polarity overvoltage protection.

Q: What is the power consumption of the 1734-EP24DC?

A: The module consumes 9.8 Watts and dissipates 3 Watts of power.

Q: Can the 1734-EP24DC be mounted vertically?

A: Yes, it supports both horizontal and vertical mounting orientations.

Product Support & Availability

The 1734-EP24DC is in stock and ready to ship from Petro Auto Tech. For lifecycle status and ordering assistance, contact our team to ensure the right part for your application.