Siemens sbs2012 1200 Amp Industrial Circuit Breaker

Siemens SBS2012 is a three-pole insulated-case circuit breaker in the SB Series, built on a 2000A frame and rated for up to 1200A. It is designed for 600V systems and provides robust protection with a listed interrupting rating up to 100 kA at 480V. This model traces Siemens’ SB/SBS lineage from the ITE era, delivering rugged, industrial-grade protection for large feeders and distribution panels in demanding power environments. With a 1200A maximum current rating and 600V maximum system voltage, the SBS2012 is suitable for main feeders and heavy-duty protection in facilities where high current protection is essential. Its three-phase configuration supports balanced protection across three lines, helping maintain uptime by quickly interrupting fault currents and isolating faults to prevent damage to downstream equipment. The insulated-case construction offers reliable isolation and safer servicing in heavy electrical rooms, while the 2000A frame provides physical compatibility with larger switchgear assemblies. In practice, the SBS2012 serves industrial facilities seeking a high-current protective device capable of safeguarding feeders that carry substantial loads at standard industrial voltages.