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- ABB
- 3HAC11668-4
- Transformer Unit
- Sweden (SE)
- 400 × 160 × 350 mm
- 12 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB 3HAC11668-4 S4C+ Transformer Unit is a power-conversion component used in ABB S4C+ robot controller installations. It forms part of the controller’s electrical power infrastructure, adapting the supplied electrical power to the voltage conditions required by the associated robot-control equipment.
In an industrial robot cabinet, transformer equipment is used where the available incoming supply does not directly match the voltage requirements of the controller or connected control circuits. The transformer therefore sits within the electrical distribution path rather than participating in robot program execution or motion calculations.
The unit is relevant to S4C+ robotic systems used in material handling, machine tending, welding, assembly, packaging, and other automated production environments. Its role is particularly important when the robot controller installation requires a dedicated transformer stage as part of the cabinet power arrangement.
For replacement work, the 3HAC11668-4 should be matched with the installed S4C+ electrical configuration. Transformer connection details, input and output voltage requirements, circuit protection, and downstream load requirements should be checked before the unit is installed.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | 3HAC11668-4 |
| Product Family | S4C+ |
| Product Type | Transformer Unit |
| Rated Capacity | 2.8 kVA |
| Primary Function | Electrical power conversion and isolation |
| System Role | Robot controller power infrastructure |
| Application | ABB S4C+ industrial robot control systems |
| Dimensions | 400 × 160 × 350 mm |
| Weight | 12 kg |
Product Features
- S4C+ transformer unit for ABB robotic control systems
- 2.8 kVA rated capacity
- Used within the robot controller power-distribution arrangement
- Converts electrical power to the required downstream voltage conditions
- Provides electrical separation between applicable supply and load circuits
- Suitable for industrial robot control cabinets
- Works with associated controller and power-distribution equipment
- Applicable to maintenance and replacement of compatible S4C+ installations
Working Principle
The transformer transfers electrical energy between its primary and secondary windings through electromagnetic induction. The winding ratio determines the relationship between the input and output voltage, allowing the downstream circuit to receive the voltage required by the associated S4C+ equipment.
The transformer does not directly control robot motion. Instead, it establishes the appropriate electrical supply conditions for controller and auxiliary circuits connected downstream.
Incoming AC Supply → 3HAC11668-4 Transformer Unit → S4C+ Power Distribution → Controller / Auxiliary Circuits
Electrical isolation between the primary and secondary sides can also help separate the downstream control circuit from the incoming supply, depending on the transformer configuration and system design. The actual connection and grounding arrangement must follow the applicable S4C+ electrical design.
Role in an ABB S4C+ Robot Control Architecture
The 3HAC11668-4 occupies the power-conversion stage of the S4C+ robot controller installation. It works with circuit protection, power supplies, controller hardware, and other electrical components to establish the required power path for the robot control system.
Incoming Power → Circuit Protection → Transformer Unit → S4C+ Power Supply / Distribution → Controller → Drive System → Robot
| System Element | Function |
|---|---|
| Incoming Power | Supplies electrical energy to the robot control cabinet |
| Circuit Protection | Protects the transformer and downstream power circuits |
| 3HAC11668-4 | Converts and electrically separates the applicable supply |
| S4C+ Power Supply | Provides controller operating power |
| S4C+ Controller | Executes robot programs and control functions |
| Drive System | Controls the robot-axis electrical operation |
| Robot Manipulator | Performs programmed mechanical movements |
The transformer therefore supports the electrical infrastructure of the robot controller while the S4C+ control and drive hardware performs the actual robotic functions.
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Robot Cells | Transformer stage within S4C+ controller cabinets |
| Material Handling | Controller power infrastructure for handling robots |
| Machine Tending | Electrical power conversion in robotic machine cells |
| Welding Automation | Power infrastructure for robot controller equipment |
| Assembly Automation | Supporting controller and auxiliary circuit power |
| Packaging Systems | Transformer supply for robotic control equipment |
| Automotive Production | Robot controller power distribution |
| S4C+ Retrofit Projects | Replacement of existing transformer components |
Installation and Maintenance
- Verify the complete 3HAC11668-4 identification before installation.
- Confirm that the transformer capacity and electrical configuration match the existing S4C+ system.
- Isolate the robot controller from the electrical supply before servicing the transformer.
- Allow the electrical system to reach a safe de-energized condition before handling transformer connections.
- Record the existing primary and secondary wiring arrangement before disconnecting the unit.
- Check terminals, conductors, protective devices, and nearby components for signs of overheating or damage.
- Install the transformer according to the approved S4C+ electrical schematic.
- Verify primary-side, secondary-side, and protective-earth connections before energizing.
- Ensure the transformer is securely mounted and that connected wiring is mechanically supported.
- Energize the system under controlled conditions and verify the downstream power-distribution condition.
- Check controller startup, power indications, and diagnostic status for abnormal conditions.
- Perform a controlled robot operation test after replacement to confirm that the complete S4C+ power and control system operates correctly.
Compatible System Components
| Component | Function |
|---|---|
| ABB S4C+ Controller | Executes robot programs and controller functions |
| S4C+ Power Supply | Provides operating power to controller electronics |
| Power Distribution | Distributes electrical power within the robot cabinet |
| Circuit Protection Device | Protects transformer and downstream power circuits |
| S4C+ Computer Unit | Provides controller processing resources |
| Robot Drive System | Controls electrical operation of robot axes |
| Robot Teach Pendant | Provides programming, operation, and diagnostics |
| Robot I/O Hardware | Exchanges signals with external automation equipment |
| Robot Manipulator | Performs programmed mechanical movements |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| ABB 3HAC11668-4 | Transformer Unit | S4C+ controller power conversion |
| ABB S4C+ | Robot Controller | Industrial robot control |
| ABB S4C+ Power Components | Power Infrastructure | Controller electrical supply |
| ABB S4C+ Power Supply Units | Power Supply | Controller operating power |
| ABB S4C+ Computer Units | Computer Unit | Controller processing |
| ABB Robot Drive Units | Drive System | Robot-axis control |
| ABB Robot Control Cabinets | Robot Control System | Industrial robotic automation |
Key Advantages
- Provides a dedicated transformer stage for compatible ABB S4C+ robot systems.
- Supports the electrical voltage requirements of downstream controller circuits.
- Provides electromagnetic power transfer between the applicable supply and load circuits.
- Integrates into the S4C+ controller’s broader power-distribution architecture.
- Suitable for industrial robot cabinets requiring dedicated power conversion.
- Useful for maintenance and replacement of compatible S4C+ transformer units.
Technical FAQs
Why is a transformer used in an S4C+ robot controller cabinet?
A transformer can be used when the available electrical supply needs to be converted to a different voltage condition for the controller or auxiliary circuits. It may also provide electrical separation between applicable supply and downstream circuits.
What should be checked before replacing the 3HAC11668-4?
The complete part number, transformer connection arrangement, primary and secondary voltage requirements, circuit protection, and downstream load should be compared with the existing S4C+ installation before replacement.
Can an incorrectly connected transformer affect the robot controller?
Yes. Incorrect primary or secondary connections can result in unsuitable voltage conditions or abnormal operation of downstream equipment. Transformer wiring should therefore be verified against the approved electrical documentation before energization.
What symptoms may indicate a transformer or transformer-circuit problem?
Controller power loss, abnormal voltage conditions, excessive transformer heating, unusual electrical noise, or repeated power interruptions can justify inspection. The incoming supply, protective devices, wiring, and downstream power components should also be checked.