Ferraz Shawmut A50QS100-4Y Molded Case Circuit Breaker is a molded case circuit breaker (MCCB) used to protect electrical circuits from overcurrent in distribution panels. The A50QS100-4Y designation identifies the exact Ferraz Shawmut model for compatibility and replacement. This device interrupts fault currents and is housed in a rugged molded enclosure suitable for mounting in electrical panels where reliable overcurrent protection is required.
