The Littelfuse AC1-B0-34-630-531-C is a single-pole magnetic hydraulic delay circuit breaker rated for 30A at 277V. This circuit breaker features a rocker actuator and is designed for panel mount installation. The magnetic hydraulic delay mechanism provides reliable overcurrent protection with time-delay characteristics. It is approved by CCC, CSA, and UL, ensuring compliance with international safety standards. The actuator is non-illuminated. This breaker is suitable for a variety of panel-mounted circuit protection applications.