Siemens 3RV1042-4KA10 Molded Case Circuit Breaker is an MCCB with the exact part number 3RV1042-4KA10. It provides overcurrent protection for electrical distribution by interrupting current during overloads or faults. As a member of the Siemens 3RV MCCB family, it is commonly used in panelboards and distribution boards where compact protection is required.
