ABB S5N300TDD-2AS8 U Molded Case Circuit Breaker

ABB S5N300TDD-2AS8 U is a molded case circuit breaker (MCCB) from ABB designed to protect low-voltage electrical circuits from overloads and short circuits. Rated for 300 A and 600 V, this device carries the S5N300TDD-2AS8 U designation and is intended for installation in low-voltage distribution panels where reliable interruption of fault currents is essential. As a molded case breaker, it provides overload protection and short‑circuit interruption to safeguard conductors and equipment in electrical distribution systems. The compact form factor and ABB protection technology support straightforward integration into standard low-voltage distribution assemblies, making it a practical choice for panel builders and electrical installers seeking dependable overcurrent protection in 600 V class systems.