Miniature circuit breakers (MCBs) ABB, the inventor of miniature circuit breaker technology, offers the largest selection of current-limiting, compact, DIN-rail mounted MCBs for AC and DC applications. Thermal and magnetic trips are provided to cover both over-current and short-circuit faults.

• UL 489, UL 1077 and IEC
• 0.2 to 100 A, up to 600 V AC/DC and 50 kA short circuit protection
• Accessories: bus bars, auxiliary and signal contacts, shunt trip and lock out/tag out