The Fuji Electric SA203B Auto Breaker is a three-pole circuit breaker designed for three-phase electrical systems and rated for 125 A. Identified by the SA203B model, this device provides automatic overcurrent protection in a compact, multi-pole package. Its three-pole design accommodates three conductors, making it suitable for protecting three-phase feeders in panel installations. With a 125 A rating, it is appropriate for panel installations that require reliable three-phase protection. Manufactured by Fuji Electric, the SA203B is a straightforward, multi-pole protection device for electrical panels.
