The Mini Circuit Breaker (OEM Part No. 3176449202) is an electrical protection spare part compatible with M4C, Simba H1354, SIMBA H1254, Boomer 281, Boomer-282, and 235 Bolting Rig underground mining equipment. Manufactured with durable plastic insulation and copper alloy conductive components, it is categorized as an electrical component used in the electrical protection system at the motor control circuit position. This circuit breaker provides reliable overload and short-circuit protection, helping safeguard electrical circuits, improve machine safety, and ensure stable operation in demanding underground mining environments.