Siemens NGG3B080 Three-Phase Molded Case Circuit Breaker

Siemens NGG3B080 is a three-pole molded‑case circuit breaker designed to protect three‑phase power circuits in industrial and commercial equipment, delivering an 80 A continuous current rating in a compact, rugged package that fits standard panelboard and switchgear mounting schemes, with a compact footprint that simplifies panel layouts and wiring. Rated for 347 VAC (600Y) on the AC side and offering DC ratings of 125 VDC and 250 VDC, it covers both main power and control‑circuit protections, enabling safe deenergization, reliable interruption of fault currents, and compatibility with mixed‑voltage installations found in manufacturing lines, HVAC systems, and processing equipment. As a member of Siemens' NGG molded‑case family, the NGG3B080 is engineered for use in distribution panels, motor control centers, and other industrial power centers where consistent protection across all three phases is required to maintain system uptime and safeguard motors and drives. Its three‑pole configuration ensures balanced disconnection across L1, L2, and L3, helping prevent phase imbalances and limiting fault propagation, while a standardized form factor and Siemens compatibility simplify upgrades and maintenance within existing low‑voltage protection schemes.