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- ABB
- PSE300-600-70 1SFA897114R7000
- Soft Starter
- Sweden (SE)
- 550 × 190 × 236.5 mm
- 13.9 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB PSE300-600-70 1SFA897114R7000 Soft Starter is an electronic motor starting and stopping device for industrial three-phase motor applications. It controls the voltage applied to the motor during acceleration and stopping, helping reduce the abrupt electrical and mechanical effects associated with conventional direct-on-line starting.
The PSE Series is commonly used where large motor-driven loads require a controlled starting sequence. Typical equipment includes pumps, fans, compressors, conveyors, and other machines in which sudden torque application can place unnecessary stress on couplings, belts, gearboxes, pipes, or the driven process.
During a motor start, the soft starter gradually increases the motor’s applied voltage so that acceleration can occur in a controlled manner. This makes the starter particularly useful in systems where the starting behavior of the motor has a direct effect on the mechanical equipment or process.
The PSE300-600-70 can be installed as part of a complete motor control arrangement together with circuit protection, switching equipment, control signals, and motor monitoring. Final selection should take into account the motor characteristics, load type, starting duty, and installation requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | PSE300-600-70 |
| Order Number | 1SFA897114R7000 |
| Product Family | PSE Series |
| Product Type | Soft Starter |
| Primary Function | Controlled motor starting and stopping |
| System Role | Motor starting and control |
| Application | Three-phase induction motor applications |
| Dimensions | 550 × 190 × 236.5 mm |
| Weight | 13.9 kg |
Product Features
- ABB PSE Series soft starter for industrial motor applications
- Controlled motor acceleration and stopping
- Helps reduce mechanical shock during motor startup
- Limits the abrupt electrical demand associated with direct-on-line starting
- Suitable for large motor-driven loads
- Applicable to pumps, fans, compressors, and conveyor systems
- Supports integration into industrial motor control panels
- Can operate as part of a broader motor protection and automation system
- Suitable for applications requiring a controlled motor starting profile
Working Principle
The PSE300-600-70 regulates the voltage supplied to the motor during the starting process. Semiconductor switching devices control the applied waveform, allowing the motor voltage to increase progressively instead of applying full supply voltage immediately.
As the voltage rises, the motor develops increasing torque and accelerates toward its operating speed. The actual acceleration behavior depends on the motor, mechanical load, and configured starting parameters.
For stopping, the starter can control the reduction of motor voltage according to the selected stopping behavior. This can be useful for loads where sudden removal of power could create mechanical shock or undesirable process conditions.
Incoming Power → PSE300 Soft Starter → Three-Phase Motor → Driven Load
Once the motor has completed the starting sequence, the bypass path can carry the motor current with reduced semiconductor losses during normal operation. The starter therefore combines controlled starting with a practical operating arrangement for the motor circuit.
Role in a Motor Control Architecture
The PSE300-600-70 sits between the incoming motor supply and the motor, forming the controlled starting stage of the motor circuit. It works with upstream protection and switching equipment while receiving operating commands from the machine or process control system.
Power Supply → Circuit Protection → PSE300 Soft Starter → Motor → Mechanical Load
| System Element | Function |
|---|---|
| Incoming Power Supply | Provides electrical power for the motor circuit |
| Circuit Protection | Protects the motor circuit against electrical faults |
| Control System | Provides start, stop, and process operating commands |
| PSE300 Soft Starter | Controls motor acceleration and stopping |
| Three-Phase Motor | Converts electrical energy into mechanical power |
| Driven Equipment | Performs the required mechanical process |
| Monitoring System | Supervises motor and equipment operating conditions |
The starter handles the motor starting behavior while the higher-level PLC, controller, or operator system can manage process sequencing and operating commands.
Industrial Applications
| Application | Typical Use |
|---|---|
| Water Pumping Systems | Controlled acceleration and stopping of pump motors |
| HVAC and Ventilation | Smooth starting of large fan motors |
| Industrial Fans | Reduced mechanical stress during fan startup |
| Air Compressors | Controlled starting of compressor motors |
| Conveyor Systems | Gradual acceleration of conveyor drives |
| Material Handling | Reduced starting shock in motor-driven equipment |
| Process Machinery | Motor starting within automated production systems |
| Industrial Motor Panels | Controlled starting for large three-phase motors |
Installation and Maintenance
- Verify that the PSE300-600-70 is suitable for the intended motor and starting duty.
- Check the motor nameplate data and compare the motor requirements with the starter selection.
- Confirm the incoming supply and motor connections against the approved electrical schematic.
- Install suitable upstream circuit protection and switching equipment.
- Verify all power and control terminals before energizing the starter.
- Keep power wiring and low-level control wiring properly routed within the control panel.
- Confirm the mechanical load is ready for controlled startup before the first commissioning run.
- Configure the starting and stopping parameters according to the motor and driven equipment.
- Test the motor acceleration sequence under controlled conditions.
- Monitor motor current, starter status, and abnormal heating during commissioning and operation.
- Inspect electrical connections, ventilation, and signs of overheating during scheduled maintenance.
- After replacement or parameter changes, complete a start, run, stop, and protection-function test before returning the motor system to service.
Compatible System Components
| Component | Function |
|---|---|
| Three-Phase Induction Motor | Converts electrical power into mechanical output |
| Circuit Breaker | Provides upstream circuit protection |
| Motor Contactor | Provides switching and isolation where required |
| Motor Protection Device | Supervises motor electrical operating conditions |
| Control PLC | Provides automated start/stop and process commands |
| Operator Interface | Provides local motor operation and status functions |
| Bypass Contactor | Provides a lower-loss current path during operation |
| Motor Cable | Connects the soft starter to the motor |
| Pump / Fan / Compressor | Represents the driven mechanical load |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| ABB PSE Series | Soft Starter | Industrial motor starting applications |
| ABB PSE Series 600 V | Soft Starter | Higher-voltage motor control |
| ABB PSR Series | Soft Starter | Compact motor starting applications |
| ABB PSTX Series | Softstarter | Advanced motor starting and control |
| ABB Motor Protection | Motor Protection Device | Motor circuit supervision and protection |
Key Advantages
- Provides controlled acceleration for industrial motor-driven equipment.
- Helps reduce mechanical shock during motor startup and stopping.
- Suitable for applications involving large pumps, fans, compressors, and conveyors.
- Supports integration with PLC-based motor control systems.
- Reduces the abrupt electrical and mechanical effects associated with direct-on-line starting.
- Combines controlled motor starting with a bypass-based normal operating arrangement.
Technical FAQs
What type of load is a PSE300 soft starter particularly suitable for?
The PSE300 can be applied to motor-driven loads where controlled acceleration and stopping are useful, including pumps, fans, compressors, conveyors, and other industrial machinery. The motor’s starting torque requirement and operating duty should be considered during selection.
What should be checked if the motor accelerates too slowly?
Check the configured starting parameters together with the motor and mechanical load characteristics. An excessively long acceleration time may indicate unsuitable settings, excessive load torque, or a motor/application combination that requires a different starting arrangement.
Does the PSE300 replace the motor protection system?
No. The soft starter forms part of the motor control arrangement, but upstream circuit protection and appropriate motor protection remain necessary according to the electrical system design and applicable requirements.
Why can a controlled stop be useful in pump applications?
A controlled stop can reduce abrupt changes in motor torque and hydraulic conditions. In suitable pump systems, this can help reduce mechanical and process disturbances compared with simply removing motor power immediately.