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Mitsubishi NF630 Molded Case Circuit Breaker
Mitsubishi NF630 Molded Case Circuit Breaker - Image 2
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Mitsubishi NF630 Molded Case Circuit Breaker

Manufacturer: Mitsubishi
Frame Current: 630A
Number of poles: 3P,4P
Breaking Capacity: 10-1000kA

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Product Description

The Mitsubishi NF630 series is a line of molded case circuit breakers (MCCBs) designed for robust electrical protection in industrial and commercial applications. These breakers operate in AC systems with rated frequencies of 50/60 Hz and are suitable for circuits up to 630A, supporting voltages up to 690V. They provide comprehensive protection against overloads, short circuits, earth leakage, and undervoltage conditions in distribution networks. Ideal for power distribution and motor protection, they handle infrequent circuit switching or motor starting.

Standard Features

Encased in durable plastic housings, NF630 models feature fixed mounting, manual or motorized operation, and air-arc quenching. Compliant with IEC 60947-1/2, GB/T 14048 standards, and CCC-certified, they ensure reliability in harsh environments with altitudes ≤2,000m and ambient temperatures from -5°C to +40°C.

  • Multi-Protection Functions:Integrates safeguards against overload, short circuit, earth leakage, and undervoltage

  • Versatile Configurations:Available in 3P (3-pole) and 4P (4-pole) versions for flexible phase compatibility

  • High Breaking Capacity:Offers strong short-circuit interruption, with Icu up to 1000kA and Ics up to 1200kA depending on models

  • Multiple Mounting Options:Supports front/rear terminal wiring and fixed installation for easy maintenance

  • Durable Construction:Sealed molded case ensures resistance to dust, humidity, and corrosion, with a mechanical lifespan of 10 years

  • Compliance & Certification:Meets IEC 60947, GB/T 14048, and CCC standards

Technical Specifications

ModelRated current In (A)

Number of Poles

NF630-CW500,600,6302,3
NF630-SW2,3,4
NF630-SEWAdjustable 300 350 400 500 600 6303,4
NF630-HEW3,4
NF630-REW3

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