Eaton SNT3P18K Three Pole Molded Case Circuit Breaker

The Eaton SNT3P18K is a three-pole molded case circuit breaker from Eaton Cutler-Hammer, designed to protect three‑phase electrical circuits in industrial and commercial power systems. It features a shunt‑trip option for remote or automatic tripping and is rated for 480–600 VAC service. Molded case breakers like the SNT3P18K interrupt fault currents and protect wiring and equipment in electrical distribution environments. The SNT3P18K designation identifies a specific unit within Eaton’s Cutler‑Hammer family, enabling compatibility with Eaton panels and standard enclosure hardware. This model supports remote trip capability and provides overcurrent protection for three‑phase loads in compact form factors used in many distribution panels and switchgear. Installation typically involves securing the breaker into a panel or enclosure and wiring to line and load terminals in accordance with applicable electrical codes and practices.