NT3

Welcome to the NT3 category at Electric Automation Network. This range encompasses high-performance thermal-magnetic circuit breakers, commonly referred to as molded case circuit breakers (MCCBs) or simply automatic circuit breakers in industrial settings. These devices are designed to protect electrical circuits against overloads and short circuits, featuring adjustable thermal and magnetic trip units. Key technical specifications include rated currents from 16A to 1600A, breaking capacities up to 100kA at 415V AC, and configurations such as 3P (three-pole) and 4P (four-pole). They are available in fixed or withdrawable versions, with options for electronic trip units for enhanced precision. The NT3 series is known for its compact design and robust construction, suitable for main distribution panels and critical power systems.

NT3 circuit breakers are primarily deployed in industrial and commercial electrical installations, including power distribution boards, motor control centers (MCCs), and generator protection systems. They are ideal for applications requiring high short-circuit withstand capability, such as in manufacturing plants, data centers, and large commercial buildings. These breakers are also used in renewable energy systems, like solar photovoltaic arrays and wind turbine substations, where reliable overcurrent protection is essential. Their versatility allows integration into both new projects and retrofit upgrades, ensuring compliance with international standards like IEC 60947-2.

The NT3 category includes several subcategories and key article codes. Notable subcategories are the NT3-160, NT3-250, NT3-630, and NT3-1600 series, each corresponding to different frame sizes and rated currents. Article codes typically follow a pattern like NT3-160A-3P-50kA, where 'NT3' denotes the series, '160A' the rated current, '3P' the number of poles, and '50kA' the breaking capacity. Other variants include NT3-250H-4P-65kA for higher performance. These codes help identify specific models for precise ordering and application matching.

Partnering with Electric Automation Network for your NT3 circuit breaker needs ensures access to genuine products with real-time pricing and express worldwide shipping. Our team of specialized engineers provides personalized technical support, from selection assistance to documentation, including wiring diagrams and trip curve charts. We guarantee fast delivery to minimize downtime, making us the preferred supplier for critical industrial projects.