AA1-B0-34-630-5D1-C is a single-pole hydraulic-magnetic circuit breaker from the A-Series, designed for precise overcurrent protection in both AC and DC applications. It features a series trip (current) circuit configuration with DC and 50/60Hz medium delay characteristics, rated at 30 amperes with a maximum voltage of 277VAC 50/60Hz or 80VDC. The unit is equipped with 10-32 screw terminals and does not include an auxiliary switch. With a maximum interrupting capacity of 7,500 amps, this compact circuit breaker is well-suited for marine, telecom, renewable energy, industrial automation, and medical equipment applications where reliable circuit protection is essential.