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Chint NXB-63 4P C20 Miniature Circuit Breaker – 20A, 6kA Breaking Capacity, Type C Curve, 4 Pole MCB for Safe Three-Phase + Neutral Circuit Isolation
Chint NXB-63 4P C20 Miniature Circuit Breaker – 20A, 6kA Breaking Capacity, Type C Curve, 4 Pole MCB for Safe Three-Phase + Neutral Circuit Isolation
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Product Code: NXB-63-4P-C20
Brand: Chint
Product Type: Miniature Circuit Breaker (MCB)
Pole Configuration: 4 Pole (4P)
Rated Current: 20 Amperes (20A)
Tripping Curve: Type C
Breaking Capacity: 6kA
Compliance Standard: IEC/EN 60898-1
Mounting Type: DIN Rail
Product Overview
The Chint NXB-63 4P C20 MCB is a four-pole miniature circuit breaker designed for full isolation of three-phase systems with a neutral conductor. With a 20A current rating, it is well-suited for protecting medium-load circuits such as lighting banks, small motors, HVAC systems, and commercial equipment.
The Type C tripping curve allows for moderate inrush currents, while the 6kA short-circuit capacity ensures rapid and reliable disconnection during faults. The 4P configuration enhances safety by isolating L1, L2, L3, and N simultaneously.
Key Features
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🔋 20A Rated Current – Ideal for balanced three-phase + neutral circuits with moderate load
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⚡ 6kA Short-Circuit Protection – Ensures reliable operation in fault conditions
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🔄 Type C Tripping Curve – Handles equipment with moderate startup surges
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🔌 4 Pole (4P) Isolation – Disconnects all phases and the neutral for maximum safety
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🧲 DIN Rail Mounting – Quick and secure installation in standard panel boards
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✅ IEC/EN 60898-1 Certified – Complies with international safety standards
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chint |
| Series | NXB-63 |
| Rated Current (In) | 20A |
| Voltage Rating (Ue) | 400V AC |
| Number of Poles | 4P (Three Phase + Neutral) |
| Tripping Curve | Type C |
| Breaking Capacity | 6kA |
| Frequency | 50/60 Hz |
| Mounting Type | DIN Rail |
| Operating Temperature | -5°C to +40°C |
| Standard Compliance | IEC/EN 60898-1 |
Typical Applications
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Balanced three-phase + neutral lighting systems
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Distribution panels in commercial and industrial buildings
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Control panels with neutral protection requirement
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Small HVAC and motor circuits
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Office and building services power circuits
Why Choose Chint NXB-63 4P C20?
The NXB-63 4P C20 MCB offers enhanced protection with four-pole disconnection, making it the perfect choice for installations that require complete phase and neutral isolation. With Chint’s proven quality and compliance with international standards, it’s a professional solution for medium-load circuit protection in modern systems.
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