Description
🔹 Product Overview
The GENERAL ELECTRIC 44A390407-G01 is a TUS1 PC Board associated with GE industrial control equipment and the Model 550MP platform.
This is a legacy GE control board identified by the TUS1 designation. It is intended for use within the corresponding control system and should be matched by the complete part number, board identification, and hardware revision before installation.
For replacement work, verify the existing board markings and system documentation carefully. Boards with similar GE 44A-series numbering are not necessarily interchangeable.
⚙️ Main Features
- GE industrial control PC board
- Model: 44A390407-G01
- Board designation: TUS1
- Associated platform: GE Model 550MP
- Legacy GE control hardware
- Designed for installation within the compatible control system
- Board-level replacement for maintenance and spare-parts requirements
- Exact revision and part-number matching recommended
- Suitable for industrial automation equipment maintenance
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | GENERAL ELECTRIC |
| Model | 44A390407-G01 |
| Board Designation | TUS1 |
| Product Type | PC Board |
| Associated System | GE Model 550MP |
| Application | Industrial Control |
| Board Category | Control / Interface PC Board |
| Mounting | System-specific board mounting |
| Communication | System-dependent |
| Input / Output | System-dependent |
| Power Supply | Verify from equipment documentation |
| Operating Temperature | Verify from original system documentation |
| Condition | New Surplus / subject to actual inventory |
| Replacement | Match complete part number and revision |
The identification of 44A390407-G01 as TUS1 PC Board for 550MP is supported by available GE parts-list information.
🔧 TUS1 Board Function
The TUS1 board belongs to the group of specialized GE control PC boards used in legacy industrial equipment.
Its actual electrical role depends on the host system configuration. For this reason, it should not be described as a generic PLC CPU, analog input module, or digital output module without confirming the original system documentation.
When replacing an existing board, technicians should compare:
- Complete board part number
- Board designation
- Hardware revision
- Connector arrangement
- Component population
- Existing wiring
- System configuration
🏭 Typical Applications
The 44A390407-G01 may be encountered in legacy GE industrial control equipment associated with the Model 550MP platform.
Typical maintenance requirements include:
- Control-system spare parts
- Replacement of failed circuit boards
- Legacy equipment restoration
- Planned shutdown maintenance
- Emergency automation repair
- Long-term inventory support
For older control systems, keeping an exact replacement board available can reduce downtime when the original hardware is no longer readily supported.
🛠️ Installation & Replacement Notes
Before replacing the board:
- Shut down the equipment according to the manufacturer’s maintenance procedure.
- Isolate and verify all relevant power sources.
- Record the existing board position and connector locations.
- Photograph wiring and connector orientation before removal.
- Confirm that the replacement marking reads 44A390407-G01.
- Check PCB revision and component configuration.
- Transfer only approved configuration components if required by the original system.
- Inspect connectors for oxidation, bent pins, contamination, or mechanical damage.
- Install the board without forcing connectors or mounting hardware.
- Perform system diagnostics and functional checks after installation.
⚠️ Do not assume another GE 44A-series board is a direct substitute simply because the model numbers are similar.
🔄 Compatibility & Replacement
The 44A390407-G01 should be treated as a specific GE TUS1 board rather than a generic replacement PCB.
A correct replacement should be verified against the complete part number, TUS1 identification, original equipment configuration, and revision information. Available parts-list data places 44A390407-G01 among GE boards associated with the Model 550MP platform.
❓ Frequently Asked Questions
Q: What is GE 44A390407-G01?
A: It is a GE TUS1 PC Board associated with the Model 550MP platform.
Q: Is 44A390407-G01 a PLC CPU module?
A: It should not be classified as a standard PLC CPU without system-specific documentation. Available identification describes it as a TUS1 PC Board.
Q: What system is it associated with?
A: Available GE parts-list information associates the board with Model 550MP equipment.
Q: Can another 44A390xxx board replace it?
A: Not automatically. The complete part number, board designation, revision, and system configuration must be checked.
Q: Is this a current-generation GE controller?
A: It is legacy industrial control hardware, so application-specific documentation and exact replacement matching are important.
Q: What should be checked before purchase?
A: Check the full part number, TUS1 marking, revision, connectors, PCB condition, and compatibility with the existing equipment.
📦 Recommended GE Models for Related Spare-Parts Searches
- GE 44A390407-G01 – TUS1 PC Board
- GE 44A390400-G01 – CLD1 PC Board
- GE 44A390401-G01 – CLG1 PC Board
- GE 44A390402-G02 – FF81A PC Board
- GE 44A390403-G02 – G0501A PC Board
- GE 44A390404-G04 – SR41B PC Board
- GE 44A390405-G01 – DC31B PC Board
- GE 44A390406-G01 – IF241 PC Board
- GE 44A390410-G03 – OD221D PC Board
- GE 44A390413-G01 – MF1A PC Board
These models appear in the same GE 44A-series industrial control parts family, but they are not interchangeable by default.
🔍 Inspection Before Shipment
For industrial spare-parts supply, the following checks are recommended:
- Verify 44A390407-G01 marking
- Check TUS1 board identification
- Inspect PCB surface and solder joints
- Check connectors and terminal points
- Look for corrosion or physical damage
- Confirm components are firmly seated
- Photograph the board and nameplate
- Record serial/revision information when available
- Perform applicable electrical or functional testing
- Package using ESD protection
Important: Publicly available documentation for this exact board does not provide enough reliable information to state specific electrical ratings such as operating voltage, current, I/O count, or environmental limits. Those values should be verified against the original GE system documentation rather than estimated.
