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Chint NXB-125G 4P C80 Miniature Circuit Breaker – 80A, 10kA Breaking Capacity, Type C Curve, 4 Pole MCB for High-Load Three-Phase + Neutral Protection
Chint NXB-125G 4P C80 Miniature Circuit Breaker – 80A, 10kA Breaking Capacity, Type C Curve, 4 Pole MCB for High-Load Three-Phase + Neutral Protection
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Product Code: NXB-125G-4P-C80
Brand: Chint
Product Type: Miniature Circuit Breaker (MCB)
Pole Configuration: 4 Pole (4P)
Rated Current: 80 Amperes (80A)
Tripping Curve: Type C
Breaking Capacity: 10kA
Compliance Standard: IEC/EN 60947-2
Mounting Type: DIN Rail
Product Overview
The Chint NXB-125G 4P C80 MCB is a heavy-duty 4-pole miniature circuit breaker engineered to protect three-phase systems with a neutral conductor. With a rated current of 80A and a Type C tripping curve, it’s built to handle circuits with moderate inrush currents, such as those in motor control centers, HVAC systems, and industrial panels.
Its 10kA short-circuit breaking capacity ensures safe disconnection during fault conditions. The 4-pole configuration guarantees simultaneous isolation of all three phases and the neutral—enhancing both safety and control.
Key Features
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🔋 80A Current Rating – Supports high-load equipment and circuits
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⚡ 10kA Short-Circuit Protection – High fault current tolerance for enhanced safety
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🔄 Type C Tripping Curve – Suitable for circuits with moderate surges (e.g., motors, compressors)
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🔌 4 Pole Protection (3 Phases + Neutral) – Full circuit isolation for maximum safety
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🧲 DIN Rail Mounting – Standardized installation for control panels and boards
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✅ IEC/EN 60947-2 Compliant – Industrial-grade certification for performance and reliability
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chint |
| Series | NXB-125G |
| Rated Current (In) | 80A |
| Voltage Rating (Ue) | 400V AC |
| Number of Poles | 4P (L1, L2, L3, Neutral) |
| Tripping Curve | Type C |
| Breaking Capacity (Icn) | 10kA |
| Frequency | 50/60 Hz |
| Mounting Type | DIN Rail |
| Operating Temperature | -5°C to +40°C |
| Standard Compliance | IEC/EN 60947-2 |
Typical Applications
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Industrial distribution boards
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Submain panels for large three-phase + neutral loads
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HVAC and refrigeration systems
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Pump control systems and motor panels
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Backup generator and UPS protection circuits
Why Choose Chint NXB-125G 4P C80?
The Chint NXB-125G 4P C80 delivers reliable performance, safe disconnection, and full circuit isolation in high-load environments. It is trusted by electrical professionals for use in industrial, commercial, and infrastructure-grade electrical systems where safety and endurance are key.
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