The AC1-B0-34-620-1G1-C is a 3-pole A-Series hydraulic-magnetic circuit breaker designed for precise overcurrent protection in compact form. This unit features a handle actuator with series trip current coil configuration, rated for 20 A continuous current at maximum voltages of 277 VAC (50/60 Hz) and 80 VDC, with a maximum interrupting capacity of 7,500 A. The breaker is housed in a sealed toggle enclosure with #6-32 mounting screws and includes a 1/2-32 hex nut with rubber O-ring for secure panel mounting. It is recognized under UL 1077, UL 508, UL 1500, and UL 489A standards, with CSA and TUV certifications (EN60934), making it suitable for marine, telecom, renewable energy, industrial automation, and medical equipment applications where reliable circuit protection is essential.