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Moulded Case Circuit Breakers
Moulded Case Circuit Breakers (MCCBs) are essential overcurrent protection devices designed for high-power industrial and commercial electrical systems. These robust circuit breakers, also known as molded case breakers or simply MCCBs, are available in configurations such as 3-pole (3P) and 4-pole (4P) variants, with rated currents ranging from ...
Moulded Case Circuit Breakers (MCCBs) are essential overcurrent protection devices designed for high-power industrial and commercial electrical systems. These robust circuit breakers, also known as molded case breakers or simply MCCBs, are available in configurations such as 3-pole (3P) and 4-pole (4P) variants, with rated currents ranging from 25A to 800A and breaking capacities (Icu) from 25kA to 200kA. They feature both thermal-magnetic and electronic trip units, including LCD display options for precise current monitoring and adjustable settings. Accessories like rotary handles with IP55 protection, terminal covers, auxiliary switches, and Castell key interlocks enhance functionality and safety. The range includes fixed thermal and magnetic-only trip types, as well as earth leakage circuit breakers (CBR) for ground fault protection.
These MCCBs are primarily deployed in main distribution boards (MDBs), sub-distribution boards, and motor control centers (MCCs) across sectors such as manufacturing, energy, infrastructure, and commercial buildings. They protect cables, motors, transformers, and other critical equipment against short circuits and overloads in low-voltage power distribution systems. Typical applications include industrial plants, data centers, renewable energy installations, and large-scale commercial facilities requiring reliable circuit protection.
All Terasaki MCCBs comply with international standards IEC 60947-2 and are fully compatible with Terasaki's own range of accessories and switchgear components. The product line includes series like S160, S250, S400, S800, E400, H400, H800, and XS1000ND, each designed for specific breaking capacities and applications. These breakers integrate seamlessly with Terasaki's auxiliary switches, shunt trips, and enclosure systems, ensuring a cohesive protection solution.
At Electric Automation Network, we offer the complete Terasaki MCCB portfolio with real-time pricing and technical documentation for each article. Our engineering team provides specialized support for selection, coordination studies, and application guidance. With express worldwide shipping, we ensure rapid delivery to any industrial site, minimizing downtime and keeping your projects on schedule.
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