ABB ST 200 M Miniature Circuit Breaker Technical Specifications

This document provides technical specifications and application guidelines for the ABB ST 200 M series miniature circuit breakers (MCBs), which offer supplementary protection per UL 1077 for AC and DC circuits up to 480Y/277 V AC and 125 V DC. It details voltage ratings, interrupting capacities, pole configurations, and wiring requirements for DC applications, including polarity considerations and series connection for voltages exceeding 60 V DC.