Siemens SND6B120LSI is a three-pole molded‑case circuit breaker designed for 600 V AC systems, with a continuous current rating of 1200 A. It uses a Long-Time, Short-Time, and Instantaneous (LSI) trip unit to deliver precise protection for 3‑phase feeders, offering a 25 kA short-circuit interrupting capacity at 600 V. This UL-listed device is part of the SND6 family and is intended for industrial power distribution panels where large feeders and equipment require reliable, fast protection. Suitable for 3P operation at 600 V, it helps safeguard heavy electrical loads in commercial and industrial environments.
