kWiki/Softstarters

Protecting Mechanical Systems with Softstarters

Eliminate water hammer, reduce mechanical stress, and extend equipment life

3-4x

Reduced Inrush Current

100%

Eliminated Water Hammer

50%

Extended Mechanical Life

Harmonics (Bypass)

The hidden damage of Direct-On-Line starting

Direct-On-Line (DOL) starting applies full torque instantly, acting like a hammer blow to your mechanical system. This causes belt slippage, gear wear, and in pumping applications, severe water hammer that can rupture pipes. Softstarters gently ramp up the voltage, providing a smooth acceleration that protects your investment.

Application Tip:: For heavy duty starting (crushers, loaded conveyors), ensure the softstarter is rated for Class 30 overload. Standard units are typically Class 10 (normal duty).

Torque Profile: Softstarter vs DOL

DOL Torque

Softstarter Torque

Hover over the chart or legend to see details about individual efficiency classes.

Starting Current Comparison (Amps)

Direct On Line (DOL)750.0%

Star-Delta250.0%

Softstarter350.0%

VFD110.0%

Stop breaking your machinery

Upgrade to softstarters today and see immediate reduction in maintenance costs.

Keybo

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