L&T Direct-on-Line Motor Starters

L&T Direct-on-Line (DOL) Motor Starters are electrical devices manufactured by Larsen & Toubro Limited, designed to provide a simple and cost-effective solution for starting induction motors. These starters are commonly used in various industrial and commercial applications where the motor load does not require speed control or soft starting. The principle of operation of a DOL starter is straightforward: when the starter is activated, it directly connects the motor to the power supply, allowing it to start running at full voltage. This results in a sudden inrush of current, which can be several times the motor's full-load current, but it's suitable for applications where this surge won't cause issues. L&T DOL Motor Starters typically consist of a contactor (or a set of contactors), an overload relay to protect the motor from overheating due to excessive current, and a control circuit for manual or automatic operation. These starters are available in various sizes and configurations to match the requirements of different motor sizes and applications. They are known for their reliability, simplicity, and robust construction, making them suitable for use in a wide range of industrial and commercial settings.