SIEMENS 5ST3012 Description Description SIEMENS AUXILIARY SWITCH 2NC FOR MCB 5SL, 5SY, 5SP, ON-OFF-SW. 5TL1, RCBO 5SU1, RCD 5SV Related products SIEMENS 1FK7022-5AK71-1DA0 SIEMENS 1FT5066-1AF71-4AA0 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1790L811A SIEMENS 1FK7103-5AF71-1DH0 SIEMENS 1FK6042-6AF71-1TH0
