Siemens LES3600LS U 600A 600V 3P Motor Protection Switch

The Eaton LES3600LS is a three‑pole motor protection trip unit designed to be used with Series C molded‑case circuit breakers to provide precise electronic overcurrent protection for industrial motor applications. Rated for up to 600 A and 600 V, this accessory trip unit enables reliable coordination of motor protection in switchgear, panelboards, and motor control centers by controlling the breaker’s tripping behavior in response to overloads and short circuits. Available configurations include the standard LES3600LSG trip unit and the LES3600LSI electronic trip option, with the latter supporting modern digital protection schemes such as Digitrip RMS 310 for accurate current sensing and protection settings. The LES3600LS plugs into compatible Eaton frames (Series C, with J‑K frame compatibility in certain configurations), making it suitable for retrofits or new install projects where heavy‑duty motor loads must be safeguarded at 600 V and 600 A. Typical applications include protection for large motors, pumps, conveyors, fans, and other demanding loads in industrial environments, where precise overcurrent protection is essential for equipment longevity and system uptime. Note that the LES3600LS is a trip unit accessory, not a standalone breaker; it relies on a compatible base MCB to provide the interrupting capability, while delivering coordinated protection tailored to motor circuits.