SU 200 ML Miniature Circuit Breaker Application Guide

This document details ABB's SU 200 ML series miniature circuit breakers (MCBs) for UL 489 branch circuit protection up to 240 V AC and 96 V DC, available in 1-pole to 4-pole configurations with ratings from 0.2 to 63 A. It covers DC application guidelines, including polarity-free installation and required series connection of two poles for voltages exceeding 48 V DC up to 96 V DC, along with permissible voltage levels between conductors and earth.