SX‑G3 Series MCB is a miniature circuit breaker for AC power distribution. It adopts thermal‑magnetic trip system to provide reliable overload and short‑circuit protection. Support 1P‑4P poles, C‑curve, 1‑63A current range, 230/400V, 50/60Hz, DIN‑rail mounting. Widely used in residential, commercial and light‑industrial power boxes. OEM & ODM service is available.