The 1658-G21-02-P10-20A is a single-pole thermal circuit breaker designed for overcurrent protection. This model features a 20A current rating, a manual reset mechanism, and a 3/8"-27 threadneck for panel mounting. It is equipped with A6.3-0.8 (QC .250) blade terminals and is rated for AC 240V or DC 28V operation. The breaker has a cycling trip-free mechanism and is designed to operate in ambient temperatures from -20°C to +60°C. Its cost-effective and lightweight design makes it suitable for various applications, including battery chargers, consumer products, power supplies, and motors.