A soft starter is an electronic device designed to reduce the starting current and torque of electric motors. Unlike traditional starters that use direct-on-line (DOL) starting techniques that draw a high amount of current, soft starters gradually increase the voltage to the motor, allowing it to start smoothly and steadily. 

The soft starter's primary goal is to extend the lifespan of the motor and its components by reducing the stress placed on them during startup. This not only improves reliability but also reduces maintenance and repair costs.

In addition to extending the life of the motor, soft starters can also help save energy by reducing power consumption during the starting and stopping process. This can translate into significant cost savings over time, making soft starters a wise investment for companies looking to reduce their electricity bills.

In summary, soft starters provide a safe and efficient way to start electric motors, helping to reduce stress on the motor and save energy. As a result, they have become an essential component in modern electrical systems, providing reliable and cost-effective solutions for both business and personal use.