Molded Case Circuit Breaker (MCCB)

Advantages of Molded Case Circuit Breaker (MCCB)

- High current capacity – MCCBs can handle a wide range of currents, from 100A to 3,200A, making them suitable for industrial and commercial applications
- Adjustable trip settings – Many MCCBs allow users to adjust the trip current settings, providing flexibility in circuit protection
- Higher breaking capacity – MCCBs can interrupt fault currents up to 200 kA, ensuring protection against severe short circuits
- Thermal & magnetic protection – Equipped with bimetallic strips for overload protection and magnetic trip elements for short-circuit protection
- Durability & reliability – Designed for long-term operation, MCCBs offer robust mechanical and electrical endurance

How Does a Molded Case Circuit Breaker (MCCB) Work?

An MCCB combines a magnetic component (an electromagnetic device which is current sensitive) with a thermal component (a device sensitive to temperature). This allows the trip mechanism. Following this mechanism, the MCCB can provide:
- Electrical fault protection against short-circuiting
- Protection against overloading
- Electrical switch for emergency disconnection

Common Applications of Molded Case Circuit Breaker (MCCB)

MCCBs are widely used across various industries, including: - Industrial Plants: Protecting motors, transformers, and critical electrical equipment
- Data Centers: Safeguarding power distribution systems
- Commercial Buildings: Providing circuit protection for lighting and power systems
- Hospitals: Ensuring reliable operation of essential medical equipment, such as MRI and X-ray machines

Electgo is a distributor of Molded Case Circuit Breakers(MCCBs) in Singapore. We distribute MCCB products from ABB, Schneider Electric, and more.