The ST201M-Z10 is a single-pole miniature circuit breaker (MCB) designed for supplementary overcurrent protection. It features a rated current of 10.0 A and a Z-trip characteristic, with an instantaneous tripping range of 2 to 3 times the nominal current, making it highly sensitive to short circuits. This high-performance device is certified for both AC and DC use according to UL 1077 and CSA 22.2 No. 235 standards, with a rated interrupting capacity of 10 kA. It is calibrated for a reference temperature of 40 °C, reducing the need for derating in industrial control panel applications. The ST201M-Z10 is ideal for protecting sensitive electronics and semiconductor devices.