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We provide the siemens overload relays and siemens solid state relays.SIRIUS overload relays with screw-type, spring-loaded or ring cable lug connections reliably protect loads as well as other switching and protective devices in the respective load feeder against overload, phase imbalance and phase failure. Thanks to ATEX certification, they can be used in many different applications, even under the particularly harsh conditions of the process industry. The overload relays can easily be used with the contactors of the modular SIRIUS system.