Frequency converters and soft starters are two different kinds of electrical equipment, and their roles and principles are different. What are the specific differences? Today, the soft starter factory Safesav will study this issue with you.


1. different role.

Frequency converter is a kind of electrical equipment to control the rotation speed of the motor, can control the motor speed and output power by adjusting the output frequency.




Soft starter is a kind of electrical equipment to reduce the starting current and starting torque when starting the motor, which can avoid the shock and vibration when starting the motor and supporting equipment, and prolong the life of the equipment.

2 Different Principle:

Inverter can control motor speed and output power by adjusting output frequency.

Soft starter is to control the rising slope of the current and starting time to reduce the shock and vibration when starting, usually using capacitors, resistors, inductors and other circuits to achieve.

3 Different scope of application:

Frequency converters are suitable for fields where motor speed needs to be regulated, such as motor control in machinery manufacturing, construction, pharmaceutical, food and other industries.

Soft starters are suitable for starting high-power motors, reducing starting current and torque, reducing shock and vibration during starting, protecting equipment and reducing energy consumption in fields such as metallurgy, petrochemical, water pump, air compressor, fan, etc. Soft starters are simple in structure, easy to maintain, small in size, easy to install, and relatively more favorable in price.

Customers can make a plan according to their specific needs, or they can come to Safesav  for consultation, thank you.