WEG SSW07 Soft Starter
Full Featured Motor Starting & Protection Platform
WEG's SSW07 soft starter provides controlled acceleration and deceleration for medium to large motors, reducing mechanical shock and inrush current. Integrated motor protection, remote HMI options, and fieldbus connectivity make the SSW07 ideal for pumps, compressors, and heavy-duty machinery.
Power Range
17 to 690 A (up to 900 HP at 480V)
220-575V three-phase, 50/60 Hz
IP20/IP21 open chassis, IP54 enclosed with bypass
Start/Stop Profiles
- Voltage ramp, current limit, torque control, and pump control
- Kick start and DC brake for high breakaway torque
- S-linear acceleration and deceleration curves
- Built-in bypass contactor (frame sizes C and above)
- Integrated motor overload class 10/20/30
Monitoring & Protection
- Phase loss, phase sequence, and unbalance detection
- Over/undervoltage and frequency supervision
- Programmable analog/digital I/O with real-time metering
- Thermistor input for motor temperature monitoring
- Event log with trip history and timestamp
Ideal Applications
- Pumps and irrigation systems
- Compressors and refrigeration equipment
- Fans, blowers, and dust collectors
- Crushers, mills, and material handling
- Industrial HVAC systems
Flexible Integration with WEG Drives & PLCs
Remote HMI Options
Panel-mounted HMIs with graphical displays provide local status, metering, and parameter access without opening the enclosure.
SoftPLC & I/O
Optional SoftPLC resources and modular I/O enable sequencing with upstream PLCs or stand-alone operation.
Communication Modules
Modbus RTU, Profibus DP, DeviceNet, CANopen, and Ethernet-based modules deliver seamless integration with plant networks.
Service Friendly
Built-in test functions, thermal modeling, and password protection simplify commissioning and long-term support.
SSW07 Documentation
Enclosed Solutions
UL508A enclosed starter packages with disconnects, bypass, and controls.
Connect with Engineering
