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JEJ Group
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The CHINT NXB-63 4P 63A MCB delivers reliable overload and short-circuit protection for industrial and commercial electrical systems. Engineered for 3-phase applications, it ensures safe isolation and uninterrupted power distribution in demanding environments.
**Technical Specifications**
- **Parameter** - **Value** - Source -
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- **Poles** - 4P - -
- **Rated Current** - 63A (selectable: 1A–63A) - -
- **Rated Voltage** - 380V~/400V~/415V~ - -
- **Breaking Capacity** - 6kA (Icn & Ics) - -
- **Tripping Curve** - Type D (high inrush tolerance) - -
- **Mechanical Life** - 20,000 cycles - -
- **Certifications** - CE, CCC, IEC 60898-1 - -
- **Connection** - Top/bottom feed, DIN rail mount - -
**Applications**
- Industrial control panels
- Commercial building distribution boards
- Renewable energy systems (solar/wind farms)
**Installation Notes**
- Mount on 35mm DIN rail (tool-free snap-on) .
- Torque terminal screws to **2.0 N·m** for secure connections .
- Use copper conductors with appropriate lugs .
- ✅ **4-Pole Protection**: Safeguards all phases + neutral in 3-phase systems .
- ✅ **63A Rated Current**: Ideal for high-load applications (industrial/commercial) .
- ✅ **6kA Breaking Capacity**: Robust short-circuit protection (Icn = Ics = 6000A) .
- ✅ **Type D Curve**: Withstands inrush currents (e.g., motors, transformers) without nuisance tripping .
- ✅ **Wide Voltage Range**: Compatible with 380V/400V/415V systems .
- ✅ **20,000 Mechanical Cycles**: Long operational lifespan .
- ✅ **Certified Safety**: Complies with IEC 60898-1, CE, and CCC standards .
3pcs of NXB-63 mcb chint (16/32/40/63)A. With a user manual.
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