Direct On-Line Motor Starters for Beginners

A concise guide about direct on-line motor starters

A direct on-line motor starter is the simplest form of motor starter. At Total Control and Distribution, we stock a wide range of DOL motor starters that are manufactured by ABB.

View our full range of DOL Starters

direct on-line starter abb

As seen in the image above, they have a separate on and off button. A DOL starter consists of a circuit breaker or MCCB, a contactor, and an overload relay for its protector. The contactor starts off in a closed position with full voltage added to its motor windings.

Demonstration Video

This YouTube clip shows demonstrates how a DOL starter works.

In Greater Detail

View a more detailed article by Jignesh Parmar. This is worth a read.

Total Control and Distribution, 23 January 2017.

Leave a Reply