Overload relay 2.8...4.0 A thermal for motor protection Size S00, CLASS 10 Contactor attachment Main circuit: screw Auxiliary circuit: screw Manual-automatic RESET Thermal overload relay SIRIUS 3RU2 for current-dependent protection of consumers with normal start-up against excessive heating as a result of overload or phase failure.This series is particularly flexible and cost-effective. Worldwide approvals (e.g. IEC and UL/CSA) and applications in potentially explosive applications (ATEX or IEC Ex) are a matter of course.Available with various setting ranges of the overload release. They are available with screw or spring-loaded connections for a quick, maintenance-free and vibration-proof connection, as well as for individual installation.The accessories are suitable for all sizes S00 to S3.Simple, efficient, always up-to-date - the SIRIUS modular system.