SIEMENS Industrial Products SIEMENS MINIATURE CIRCUIT BREAKER May 5, 2015 admin SIEMENS MINIATURE CIRCUIT BREAKER 5SQ, 5SX, 5SM Short Circuit and overload protection – Standard IEC60898, IEC60947-2, DIN VDE 0641, EN 60 89 – Service life: average 20,000 operations at rated load