CMB-053-27G3N-B-A is a miniature, push-to-reset thermal circuit breaker designed to provide cost-effective and reliable overcurrent protection for a wide range of equipment applications. The breaker features a single pole configuration with minimal moving parts, rated from 3-20 amps at 125/250VAC or 32VDC maximum, and offers a consistent trip point over temperatures ranging from -10°C to +60°C. It provides 1,000 AIC at 250VAC and 2,500 AIC at 32VDC, with time-delay characteristics that prevent nuisance trips during normal operation while responding quickly to fault conditions. The 3/8" 27 UNS mounting hole and Type G plastic bushing configuration make it suitable for panel-mount applications in household appliances, power supplies, marine equipment, medical devices, and audio-visual equipment.