The test setup is equipped with a fully integrated PC interface to ensure maximum ease of use on production lines and in quality‑control environments, . Once the operator selects the required MCB model for testing, the entire sequence becomes automated with a single click. The software initiates the test by first performing a continuity check across all poles of the MCB under test. If continuity is satisfactory, the system injects the holding current across all poles. After successful holding verification, the system automatically applies the tripping current as per the defined B, C, or D curve characteristics.