How much does a soft starter cost?

Backed by a two-year warranty, Stellar soft starters prices start at $145. To prolong the life of the soft starter, optional cooling fans are available starting at $45.

Do you need a starter if you have a VFD?

Electrical engineers recommend soft starters when motors only need a starting system, and VFDs when motors also need speed control while operating. A soft starter cannot save energy by ramping down a motor with variable load, and a VFD wastes its speed control capacity when used only as a starter.

Is VFD a soft starter?

Overall, both soft starter & VFD are used for safe motor operation but the soft starter is used in application where the speed control is not necessary while the VFD is used for speed control….Differences between Soft Starter & VFD.

Soft Starter VFD (Variable Frequency Drive)
It is cheaper than VFD. It is expensive.

How long does soft starter last?

Generally speaking it is in the 10 plus year life expectancy. Click here for more on how to select a soft starter.

Do I need a soft starter?

Soft starters are often the more economical choice for applications that require speed and torque control only during motor startup. Additionally, they are often the ideal solution for applications where space is a concern, as they usually take up less space than variable frequency drives.

How much energy does a VFD save?

VFDs save energy by enabling electric motors to operate at less than full speed. The Laws of Affinity for centrifugal pumps and fans states. Reducing motor speed by 25% decreases energy consumption by nearly 60% while reducing motor speed by 50% decreases energy consumption by nearly 90%.

When should you use a soft starter?

Soft starters are commonly used in industrial applications that have a high inertia load that requires a large inrush of current. One example of this is an Air Scrubber or Dust Collector. These will have large fans inside.

Which is better soft starter or VFD?

The main difference between the two is that a VFD can vary the speed of a motor while a soft starter only controls the starting and stopping of that motor. When faced with an application, price and size are in the favor of a soft starter. A VFD is the better choice if speed control is required.

What is the disadvantages of a soft starter?

Disadvantages of soft starters The disadvantage of the soft starter technology compared to the frequency converter is that it is unable to control the speed and is unsuitable for applications requiring speed control.