About MCCB 3 POLE 63A-400A
Conforms to IS/IES 60947-2
Ics=100% Icu
Range: 16A-400A, 3 POLE
Breaking capacity: 25kA, 35/36kA, 50kA
Positive Isolation
Trip Free contact structure
Neutral with 100% rated current
Bounce free contact structure
Wide range of internal & external Accessories
SS Enclosure available
Standard packing includes insulating phase barrier and hardware
Advanced Protection & VersatilityEngineered with Type C & D tripping curves and a breaking capacity of up to 50kA, this MCCB ensures both overload and short circuit protection. Its thermal and magnetic trip units enhance reliability, making it suitable for demanding power distribution needs in a variety of settings. Auxiliary, under-voltage, and shunt trip accessories further expand its application scope.
Rugged Design, Flexible InstallationThe MCCB boasts a robust enclosure crafted from high-strength flame retardant plastic, suitable for both vertical and horizontal mounting. It accommodates large terminal cables up to 185mm, ensuring streamlined installations for panel builders, distributors, and service providers. The IP20 rating provides safe operation in challenging conditions.
Reliable Performance & Extended LifespanWith a mechanical life of up to 10,000 operations and electrical endurance up to 5,000 cycles, this MCCB stands out for its longevity. Its wide operating temperature range of -5C to +40C makes it dependable across diverse climates, while accessories enable tailored protection for critical circuits.
FAQs of MCCB 3 POLE 63A-400A:
Q: How does the MCCB 3 Pole 63A-400A provide protection against overload and short circuits?
A: This MCCB employs both thermal and magnetic trip units to detect and interrupt overloads and short circuit faults. The thermal mechanism responds to sustained overcurrents, while the magnetic trip instantaneously responds to severe fault currents, protecting electrical circuits from potential damage.
Q: What are the benefits of the enclosure material and protection degree for industrial use?
A: Constructed from high-strength flame retardant plastic, the enclosure ensures durability and safety under demanding conditions. The IP20 rating provides protection against solid objects larger than 12mm, minimizing the risk of accidental contact and ensuring operator safety in industrial and commercial environments.
Q: When should I use auxiliary contacts, under-voltage trip, or shunt trip accessories with this MCCB?
A: Auxiliary contacts are useful for signaling and control circuits. Under-voltage trips protect equipment by disconnecting power during voltage drops. Shunt trips allow remote operation or emergency disconnection. These accessories enhance system flexibility and safety based on specific application requirements.
Q: Where can the MCCB 3 Pole 63A-400A be installed, and what are the mounting options?
A: The MCCB is designed for versatile installation in panel boards or fixed settings, with both vertical and horizontal mounting supported. It suits industrial, commercial, and institutional sites such as factories, commercial complexes, and institutional buildings throughout India.
Q: What is the process for connecting cables to this MCCB, considering the terminal capacity?
A: The breaker supports cable sizes up to 185mm, allowing secure connection for high-power circuits. Ensure proper cable preparation, select compatible lugs, and tighten terminal screws to manufacturer-specified torques for safe and reliable connectivity.
Q: How does the electrical and mechanical life of this MCCB contribute to its reliability?
A: With up to 5,000 electrical and 10,000 mechanical operations, this MCCB offers dependable performance and a long service lifespan. This durability is crucial for minimizing downtime and maintenance in facilities with frequent switching needs or harsh operational conditions.
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