The 1658-G21-02-P10-10A is a single-pole thermal overcurrent circuit breaker designed for cost-effective protection in consumer and industrial applications. It features a manual reset type with a 3/8"-27 threadneck design, blade terminals (DIN 46244-A6.3-0.8 QC .250), and includes one PAL nut and one knurled nut in bulk configuration. The device is rated for 10A current with a maximum voltage drop of 140 mV at rated current, and operates at AC 240V or DC 28V depending on certification authority. It incorporates a cycling trip-free mechanism, is extremely small and lightweight, and is approved to UL, CSA, VDE, and EN 60934 (IEC 60934) standards. Typical applications include battery chargers, consumer products, power supplies, and motors, where reliable thermal protection and manual reset capability are essential.