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NS5
In the industrial automation and electrical distribution landscape, the NS5 series represents a family of high-performance molded case circuit breakers (MCCBs) designed for reliable overcurrent and short-circuit protection. These devices are engineered with a compact footprint, typically featuring 3-pole (3P) or 4-pole (4P) configurations, with ...
In the industrial automation and electrical distribution landscape, the NS5 series represents a family of high-performance molded case circuit breakers (MCCBs) designed for reliable overcurrent and short-circuit protection. These devices are engineered with a compact footprint, typically featuring 3-pole (3P) or 4-pole (4P) configurations, with rated currents ranging from 100A to 630A, and breaking capacities up to 50kA at 415V AC. The NS5 series is built for fixed or plug-in mounting, offering thermal-magnetic or electronic trip units for precise protection curves. Common technical specifications include rated insulation voltage (Ui) of 690V, rated impulse withstand voltage (Uimp) of 8kV, and compliance with IEC 60947-2 standards. Accessories like auxiliary contacts, shunt trips, and undervoltage releases enhance functionality, making these breakers suitable for both main and branch circuit protection in demanding environments.
The NS5 series is predominantly deployed in industrial switchboards, power distribution panels, and motor control centers (MCCs) across sectors such as manufacturing, energy, infrastructure, and commercial buildings. They are ideal for protecting transformers, generators, capacitor banks, and large motors against overloads and short circuits. In renewable energy installations, such as solar farms and wind turbines, these breakers ensure safe isolation and fault management. Their robust design also supports use in marine, mining, and oil & gas applications where high fault currents and harsh conditions are common. The series integrates seamlessly into automation systems via communication modules for remote monitoring and control.
Key subcategories within the NS5 series include fixed versions (e.g., NS5-250, NS5-400, NS5-630) and plug-in versions for easy maintenance. The article code typically follows a pattern like NS5-XXX-YY, where XXX denotes the frame size (e.g., 250, 400, 630) and YY indicates the number of poles (e.g., 3P or 4P). For example, NS5-250-3P is a 250A frame, 3-pole breaker. Electronic trip units are coded as NS5-ETU-XXX, while thermal-magnetic units are standard. Accessories like NS5-AUX for auxiliary contacts and NS5-SHT for shunt trips are also available. These breakers are often paired with rotary handles or motor operators for remote switching.
Partnering with Electric Automation Network ensures access to genuine NS5 series breakers with real-time pricing and global express shipping. Our team of specialized engineers provides personalized technical support, including trip curve selection, coordination studies, and installation guidance. Each product listing includes detailed documentation, such as datasheets and wiring diagrams, to streamline procurement. Whether you need a single unit for a retrofit or bulk supply for a large project, we deliver fast and reliably. Contact us for competitive quotes and expert advice on optimizing your electrical protection systems.
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