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Soft Starter

MS21-H Soft Starter (High-performance)

MS21-H Soft Starter (High-performance)
MS21-M Soft Starter, Bypass Type, 5.5–630 kW

MS21-M Soft Starter, Bypass Type, 5.5–630 kW

Low-voltage Soft Starter Knowledge Card

A low-voltage soft starter provides smooth starting and soft stopping of three-phase asynchronous motors, helping to reduce starting current, mechanical shock and water hammer in pipe networks.

What it solves

  • High starting current with direct-on-line starting.
  • Pronounced starting shock on pumps, fans and compressors.
  • Need for overload, under-voltage and over-current protection in operation.

Typical applications

Pumps, fans, compressors, crushers, coal mines, municipal wastewater treatment, district heating and industrial drives.

Parameters to provide for selection

Motor power, rated voltage, rated current, load type, starting frequency, starting time, bypass method, protection requirements and installation environment.

Inquiry
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