Product Overview

The Allen Bradley 80026-172-23 AC/DC Power Supply is an industrial power supply component used within electrical control cabinets and automation systems. It belongs to the power section of the control architecture, where electrical power is converted and supplied to compatible automation equipment.

Unlike a PLC controller or I/O module, the 80026-172-23 does not execute application logic or process field signals. Its role is focused on the electrical supply infrastructure that supports controllers, interfaces, instrumentation, and other control-system hardware.

For maintenance engineers working with established Allen Bradley installations, this type of power supply is relevant when replacing or servicing power-conversion equipment while retaining the existing control-system architecture.

Technical Specifications

Product Features

The 80026-172-23 is suited to industrial control environments where AC/DC power conversion is part of the system architecture.

Key characteristics include:

• Allen Bradley AC/DC power supply
• Model 80026-172-23
• Intended for industrial automation applications
• Suitable for electrical control cabinets
• Supports compatible control-system equipment
• Provides power-conversion functionality within the system
• Suitable for established automation installations
• Useful for maintenance and replacement projects
• Can be integrated into industrial power-distribution arrangements

For replacement work, the power supply should be evaluated together with the existing electrical configuration and connected equipment.

Working Principle

The 80026-172-23 operates within the AC/DC power-conversion path of an industrial control system.

A simplified relationship can be represented as:

AC Power Source → 80026-172-23 → DC Power Distribution → Control Equipment

The incoming AC electrical power enters the power supply and passes through the internal conversion stages. The power-conversion circuitry changes the electrical characteristics of the input and produces a DC supply for compatible downstream equipment.

The resulting power can then be distributed through the control cabinet to controllers, I/O equipment, interface devices, instrumentation, and other electronic loads.

When troubleshooting, the complete power path should be considered. A fault in the input supply, wiring, protection devices, power supply, or downstream distribution can produce similar symptoms in connected control equipment.

Role in a Control System

The 80026-172-23 occupies the power-supply layer of an industrial automation architecture.

A simplified system arrangement can be viewed as:

Incoming AC Power → AC/DC Power Supply → Power Distribution → PLC / I/O / Interface Equipment → Field Devices

The power supply does not perform PLC processing or field I/O functions. Instead, it supports the electrical requirements of equipment that performs those functions.

This makes the power-supply section an important area to inspect when several automation components experience abnormal behavior at the same time. A common power problem can affect multiple devices within the same control cabinet.

Industrial Applications

The 80026-172-23 can be used in industrial automation installations where AC/DC power conversion is required.

The actual application depends on the electrical configuration and equipment connected to the power-supply circuit.

Installation and Maintenance

Before replacing the 80026-172-23, the existing control-panel power architecture should be documented.

Recommended maintenance procedures include:

• Confirm the complete 80026-172-23 model number.
• Identify the existing installation position.
• Document input-side wiring.
• Record output connections.
• Inspect terminals and connectors.
• Check associated circuit protection.
• Inspect cable condition.
• Verify grounding arrangements.
• Check connected equipment.
• Confirm correct installation of the replacement.
• Check the power output after commissioning.
• Monitor connected automation equipment during startup.
• Record the final installation configuration.

If several devices experience simultaneous resets, communication interruptions, or intermittent operation, inspect the common power path before replacing individual controllers or I/O modules.

Related Components

The 80026-172-23 works as part of a broader industrial control-system power architecture.

These components should be considered together when diagnosing power-related problems within the control cabinet.

Recommended Related Models

Related Allen Bradley power-supply products can be considered according to the existing automation architecture.

The 80026-172-23 should not be treated as interchangeable with these models solely because they are all power-supply products. Electrical specifications and system compatibility must be confirmed before replacement.

Key Advantages

• AC/DC power conversion for industrial applications
• Suitable for automation control systems
• Supports the power layer of an industrial control architecture
• Suitable for electrical control cabinets
• Can support compatible downstream automation equipment
• Useful for maintenance and replacement work
• Suitable for established Allen Bradley installations
• Integrates into broader industrial power-distribution arrangements

Technical FAQs

What is the Allen Bradley 80026-172-23 used for?

The 80026-172-23 is an AC/DC Power Supply used within industrial automation and control-system power architectures.

What is the difference between the 80026-172-23 and a PLC power module?

The 80026-172-23 serves as a power-conversion component, while a PLC-specific power module is generally associated with supplying a particular PLC chassis or controller platform. The appropriate choice depends on the system architecture.

What should be checked before replacing an 80026-172-23?

The complete model number, electrical requirements, input and output wiring, connected loads, protection devices, grounding, and control-panel configuration should be verified before installation.

Why should the power supply be checked when several control devices fail simultaneously?

Several controllers or electronic devices may share the same power infrastructure. An issue in the common supply path can therefore cause multiple devices to reset, become unavailable, or operate intermittently. Checking the power section can help distinguish a common supply fault from individual equipment failures.