The Mini Circuit Breaker (OEM Part No. 3176449201) is an electrical protection spare part compatible with Boomer, Simba, M4C, ROC, and other underground mining equipment. Manufactured with plastic insulation and copper alloy conductive materials, it is categorized as an electrical component used in the electrical protection system at the motor control circuit position. This circuit breaker provides overload and short-circuit protection, helping safeguard electrical circuits and improve machine reliability. Designed for underground mining applications, it supports safe and stable equipment operation.