The ABB S204‑M miniature circuit breaker is a 4‑pole thermal‑magnetic circuit protection device designed for low‑voltage electrical installations. It belongs to ABB’s System pro M compact S200M series of compact MCBs, engineered to protect electrical circuits from overload and short‑circuit faults. These breakers feature current limiting performance, combining a thermal element for overload protection and a magnetic element for short‑circuit protection. They comply with major international safety standards and suit residential, commercial, and industrial applications
