The Cutler Hammer Eaton NDC312T52W 1200A is a high-performance molded case circuit breaker engineered for reliable protection and switching in industrial and commercial power distribution systems. Part of the trusted Series C family from Eaton under the Cutler-Hammer brand, this breaker is designed to provide advanced electronic protection with strong interrupting capability and long service life in demanding electrical environments.

Built on an N-frame platform, the Cutler Hammer NDC312T52W features a 1200-amp continuous current rating with a maximum operating voltage of up to 600 VAC, making it suitable for medium-to-large power distribution networks, switchboards, panelboards, and motor control applications. The three-pole configuration supports three-phase electrical systems commonly found in industrial facilities, utilities, and large commercial installations. Its solid-state electronic trip unit, typically Optim 550 with LSI (long-time, short-time, instantaneous) protection functions, enables precise fault detection and adjustable protection settings for improved coordination and system reliability.

The breaker offers high interrupting ratings—up to approximately 200 kA at 240 VAC and 100 kA at 480 VAC depending on configuration—ensuring dependable fault clearing capability and enhanced equipment protection during short-circuit events. The bolt-on or busbar connection design provides secure installation and compatibility with various distribution assemblies, while the rugged molded case construction ensures durability in harsh operating conditions.

Designed to meet industry safety and performance standards, the Cutler Hammer NDC312T52W is widely used in manufacturing plants, data centers, infrastructure projects, and large commercial facilities where dependable electrical protection and operational continuity are critical. Its combination of electronic trip technology, high interrupting performance, and proven Series C reliability makes it an excellent solution for modern power management systems.

Cutler Hammer NDC312T52W 1200A Molded Case Circuit Breaker, Line and load terminal connectors, Mounting hardware, Operator handle or mechanism (if applicable), Identification and rating labels, User manual and installation guide, Test or calibration certificate (if provided), Safety and compliance documentation, Manufacturer warranty card, Original Cutler Hammer/Eaton packaging