About MITSUBISHI (NF 630-SE) 630 AMP MCCB
MCCB stands forA Molded Case Circuit Breaker. It is another type of electrical protection device which is used when load current exceeds the limit of a miniature circuit breaker. The MCCB provides protection against overload, short circuit faults and is also used for switching the circuits.Advanced Protection for Demanding ApplicationsThe NF 630-SE MCCB provides advanced overcurrent and short circuit protection, ensuring electrical system safety for large-scale industrial and commercial uses. Its electronic/fixed trip unit and adjustable curves allow tailored responses to various load profiles while maintaining minimal risk and high reliability.
Flexible Installation and DesignWith support for both vertical and horizontal mounting positions, and panel/fixed installation options, the NF 630-SE adapts to diverse cabinet layouts. Its box lugs enable straightforward and secure cable terminations, while optional auxiliary contacts offer integration into monitoring systems.
Engineered for Longevity and ReliabilityThis MCCB's robust build offers an operating temperature range from -10C to +60C, and a mechanical life rated at 10,000 operations. Its IP20 protection and durable design make it suitable for challenging environments, offering consistent performance over extended periods.
FAQ's of MITSUBISHI (NF 630-SE) 630 AMP MCCB:
Q: How is the MITSUBISHI NF 630-SE MCCB installed for optimal performance?
A: The NF 630-SE MCCB can be installed in either vertical or horizontal positions, providing flexibility for a variety of panel configurations. It supports panel mounting with robust box lug terminals, ensuring secure electrical connections and easy integration into fixed installations.
Q: What are the main functions of the NF 630-SE MCCB?
A: This MCCB offers comprehensive protection, including overcurrent protection, short circuit protection, and circuit isolation. These features safeguard electrical circuits, reducing the risk of equipment damage and ensuring overall system safety.
Q: When should auxiliary contacts be used with this MCCB?
A: Auxiliary contacts should be selected when remote monitoring or external circuit interlocking is required. They enable status indication or signaling functions, which are particularly beneficial in automated or monitored electrical installations.
Q: Where is the optimal application of the NF 630-SE MCCB?
A: The NF 630-SE is suitable for use in industrial and commercial electrical panels requiring reliable protection for three-phase systems up to 415 V AC and 630 Amps, especially where high breaking capacity and durability are crucial.
Q: What is the process for adjusting the thermal trip setting?
A: Adjustment of the thermal trip is done through the onboard settings of the electronic/fixed trip unit, allowing users to fine-tune the breaker response to specific load characteristics and thermal protection needs, providing tailored system safeguarding.
Q: How does the degree of protection (IP20) benefit the user?
A: An IP20 degree of protection ensures that the MCCB's internal components are protected against solid objects over 12 mm, reducing the risk of accidental contact with live parts and enhancing operational safety in panel installations.