Switch power to your circuits on and off using this contactor from Eaton. It uses a star delta system, which means it adjusts the motor windings to a star connection during startup. When the motor reaches a set speed, it switches the windings to a delta connection. This reduces the voltage supplied to the circuits to protect them from current overload and overheating. You'll typically find a contactor like this one used in three-phase induction motors.

• Maximum changeover time of 20s for rapid switching
• Broad operating temperature range between -25°C and +60°C for use in demanding environments
• IP20 rating means it's finger-safe and protected against objects larger than 12mm in size
• Power rating of 11kW for use in heavy-duty systems

This contactor has an operating frequency of 30 starts per hour, so rest assured that you can use it multiple times in a row without the risk of breakdown.

You mount this contactor by simply snapping it onto a DIN rail, eliminating the need for specialist tools.

Eaton formerly known as Moeller