The AA1-F0-20-210-1B1-C is a single-pole hydraulic-magnetic circuit breaker designed for precise overcurrent protection in compact applications. It is rated for 0.1 A at 277 VAC (50/60 Hz) and 80 VDC maximum, with an instantaneous trip characteristic and a maximum interrupting capacity of 7,500 A. The breaker features a push-on 0.250 inch quick-connect terminal for easy installation and a compact handle design suitable for clean front-panel applications. It is commonly used in marine, telecom, renewable energy, industrial automation, and medical equipment applications where reliable, space-efficient circuit protection is required.