7SR5121-6AD26-2AA0Brand: SiemensMPN: 7SR5121-6AD26-2AA0Directional time-overcurrent protection 7SR51, 5 curr. trans., 4 volt. trans., 37 BI, 21 BO (incl. 3 HSBO), 3 AFD (Arc Flash Detector), Standard interface: 1 x Request a quote