ABB ESB43090L U UL Listed Molded Case Circuit Breaker is a 3-pole MCCB rated for 90 A at 480 V, designed to provide overcurrent protection in electrical distribution systems. It carries an 18 kA interrupting rating, enabling it to safely interrupt fault currents at system voltage levels up to 18,000 A. The ESB43090L U designation identifies a fixed 90 A rating, a three-pole configuration, and UL listing within ABB's ESB molded case breaker family.
