ABB Discontinued Parts & Replacement Guide

How to Identify Legacy ABB Robot Components and Find Compatible Replacement Parts

Industrial robots are built for long operational lifetimes. Many ABB robots remain in production for 15 to 20 years, especially in automotive, electronics, and general manufacturing environments.

During this time, however, certain spare parts may become discontinued or classified as legacy components.

For maintenance teams and system integrators, this raises several important questions:

• Is the robot still repairable?
• Can discontinued ABB parts still be sourced?
• Are newer parts compatible with older controllers?
  

In most cases, the answer is yes. Even if ABB no longer manufactures a specific component, replacement options usually exist through upgraded hardware revisions, compatible parts, or professionally refurbished components.

This guide explains how to identify discontinued ABB parts and how to safely replace them.

Why ABB Robot Parts Become Discontinued

ABB continuously updates its robotics hardware to improve performance, reliability, and supply chain stability. Over time, older components may be phased out.

Common reasons include:

Technology evolution

Controller electronics and communication systems continue to evolve. Older processors, chips, or display modules may eventually be replaced by newer designs.

Supply chain limitations

Electronic components used in earlier circuit boards may become unavailable from suppliers.

Controller platform upgrades

When ABB transitions between controller generations—such as from S4 to IRC5, or from IRC5 to OmniCore—some earlier hardware components become legacy parts.

Importantly, discontinuation does not mean the robot must be retired. In most cases, compatible replacements remain available.

Common Types of Discontinued ABB Robot Parts

Certain categories of robot components are more likely to become discontinued over time.

DSQC Controller Boards

The DSQC board series is widely used inside ABB robot controllers.

These boards handle critical functions including:

• system control
• I/O communication
• fieldbus interfaces
• servo drive management

Examples of commonly used DSQC boards include:

• DSQC652
• DSQC663
• DSQC679
• DSQC604
• DSQC668

Many of these boards have multiple hardware revisions, meaning a newer version can often replace an earlier one.

For example:

DSQC679-001 → DSQC679-002

These revisions typically improve reliability while maintaining compatibility.

(Recommended internal link: ABB DSQC Board Index)

3HAC Controller Components

Many ABB robot controller parts use the 3HAC part number system.

These components include:

• power supply modules
• CPU units
• servo drives
• communication modules

Examples include:

• 3HAC025562
• 3HAC17484
• 3HAC031977
• 3HAC17326

Even when discontinued, these components are frequently available through refurbished inventory or compatible revisions.

(Recommended internal link: ABB Part Number Index)

Teach Pendant Components

Teach pendants are heavily used in daily robot operation, making them one of the most frequently replaced components.

Common replaceable parts include:

• LCD display modules
• membrane keypads
• emergency stop switches
• pendant cables

Instead of replacing the entire pendant, many maintenance teams choose to replace individual components, reducing repair costs.

(Recommended internal link: ABB Teach Pendant Accessories Index)

Most Common Discontinued ABB Parts and Replacement Examples

Below are some examples of ABB parts that frequently appear in maintenance and replacement requests.

Discontinued Part	Replacement / Alternative	Category
DSQC652	DSQC663	Controller Board
DSQC604	DSQC668	Controller Board
DSQC679-001	DSQC679-002	Controller Board
3HAC17484-6	3HAC17484-7	Power Module
3HAC031977	Compatible Revision	Controller Component
3HAC025562	Refurbished Unit	Power Supply
ABB FlexPendant LCD	LCD Replacement Module	Teach Pendant
ABB Pendant Keypad	Membrane Keypad	Teach Pendant

These examples illustrate a common reality in industrial automation:

Even when the original part number becomes discontinued, a replacement solution is usually available.

How to Identify Whether an ABB Part Is Discontinued

If a robot spare part becomes difficult to source, it may have been classified as a legacy component.

Here are several ways to confirm this.

Check the Full Part Number

ABB part numbers usually include revision identifiers.

Example:

3HAC17484-5

3HAC17484-7

Later revisions may replace earlier versions.

Review Robot Controller Documentation

Robot manuals often list:

• compatible replacement parts
• supported hardware revisions
• upgrade recommendations

Check Industrial Spare Parts Suppliers

Even if ABB no longer produces the part, it may still be available through:

• industrial spare parts distributors
• refurbishment providers
• surplus inventory suppliers

This is especially common for DSQC boards and controller electronics.

Replacement Options for Discontinued ABB Parts

When an ABB part becomes discontinued, maintenance teams usually have several options.

Compatible Hardware Revisions

Newer hardware versions may replace older ones while maintaining compatibility.

Examples include:

• upgraded DSQC boards
• revised communication modules
• updated controller electronics

These replacements typically maintain the same installation interface.

Refurbished Robot Components

Refurbished parts are widely used in industrial robotics maintenance.

Advantages include:

• significantly lower cost
• faster availability
• extended lifespan for legacy robots

Reliable refurbishment processes include:

• functional testing
• electrical stability verification
• interface compatibility testing
  

Component-Level Repair

In some situations, the full assembly does not need to be replaced.

Examples include:

• replacing a teach pendant LCD screen
• repairing pendant cables
• replacing membrane keypads

This approach can significantly reduce maintenance costs.

How to Check ABB Robot Spare Part Numbers (Step-by-Step)

When replacing robot components, correctly identifying the ABB part number is critical. Even small differences in the number or revision can affect compatibility with the robot controller.

Most ABB robot spare parts use standardized numbering systems such as 3HAC or DSQC.

Below is a simple process maintenance teams can follow.

Step 1: Locate the Part Label

Most ABB components have a printed label that includes the full part number.

Typical locations include:

• controller boards
• power supply modules
• teach pendant housings
• cable assemblies

A typical label might look like this:

3HAC17484-7

ABB Robotics

Made in Sweden

The full number—including the revision suffix—is important when searching for a replacement.

Step 2: Identify the Part Number Series

ABB robot parts generally fall into several common numbering systems.

3HAC Parts

The 3HAC series is commonly used for controller components and electronics.

Examples include:

• 3HAC17484
• 3HAC025562
• 3HAC031977

These parts often correspond to:

• power modules
• servo drives
• controller electronics

DSQC Boards

The DSQC series is used for many controller circuit boards.

Examples include:

• DSQC652
• DSQC663
• DSQC679
• DSQC668

These boards handle communication, I/O control, and system monitoring inside the robot controller.

Teach Pendant Components

Teach pendant assemblies may include separate part numbers for:

• LCD displays
• membrane keypads
• pendant cables
• emergency stop buttons

These parts can often be replaced individually instead of replacing the full pendant.

Step 3: Check the Hardware Revision

Many ABB parts include a revision number.

Example:

3HAC17484-6

3HAC17484-7

In many cases, a higher revision number indicates a newer version that may replace an earlier one.

However, compatibility should always be confirmed before installation.

Step 4: Verify Controller Compatibility

The same part number may be used across multiple robot controllers, but compatibility can depend on:

• controller generation (S4, IRC5, OmniCore)
• firmware version
• robot model

Maintenance documentation or spare parts indexes can help confirm compatibility.

Step 5: Search Spare Parts Indexes

Industrial spare parts indexes are often the fastest way to locate compatible components.

For example, you can browse:

• ABB part number indexes
• DSQC board lists
• teach pendant accessory indexes

These indexes help identify compatible parts and available replacements for discontinued components.

(Recommended internal links)

• ABB Part Number Index
• ABB DSQC Board Index
• ABB Teach Pendant Accessories Index

Best Practices When Replacing Legacy ABB Robot Parts

To avoid unnecessary downtime, maintenance teams should follow several best practices.

Verify compatibility

Always confirm compatibility with:

• controller generation
• firmware version
• hardware revision
  

Document original configuration

Record:

• full part number
• hardware revision
• robot controller model

Use tested industrial components

Replacement parts should always be:

• properly tested
• suitable for industrial environments
• packaged safely for transport

FAQ: ABB Discontinued Parts

Are discontinued ABB robot parts still available?

Yes. Many discontinued ABB parts remain available through industrial spare parts suppliers or refurbishment programs.

Can newer DSQC boards replace older versions?

In many cases, yes. Later hardware revisions often maintain compatibility with earlier controller systems.

Are refurbished ABB robot parts reliable?

When supplied by reputable industrial vendors and properly tested, refurbished components can provide reliable long-term performance.

Do I need to replace the entire teach pendant?

Not necessarily. Many teach pendant failures are caused by individual components such as the LCD display or keypad, which can often be replaced separately.

Keeping Legacy ABB Robots Running

Industrial robots are long-term assets. Even when specific parts become discontinued, it rarely means the robot must be replaced.

With compatible replacements, refurbished components, and proper maintenance practices, many ABB robots can continue operating reliably for decades.

For maintenance teams and automation engineers, understanding how ABB part numbers evolve is the key to keeping legacy robotic systems running efficiently.

Related ABB Robot Spare Parts Resources

If you are searching for ABB robot spare parts or replacements, the following resources may help.

• ABB Robot Spare Parts Index
• ABB Part Number Lookup Guide
• ABB DSQC Board Index
• ABB Teach Pendant Cable Index

These indexes make it easier to identify parts, find compatible replacements, and locate available inventory.