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Chint NXB-63 3P C63 Miniature Circuit Breaker – 63A, 6kA Breaking Capacity, Type C Curve, 3 Pole MCB for High-Capacity Three-Phase Circuit Protection
Chint NXB-63 3P C63 Miniature Circuit Breaker – 63A, 6kA Breaking Capacity, Type C Curve, 3 Pole MCB for High-Capacity Three-Phase Circuit Protection
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Product Code: NXB-63-3P-C63
Brand: Chint
Product Type: Miniature Circuit Breaker (MCB)
Pole Configuration: 3 Pole (3P)
Rated Current: 63 Amperes (63A)
Tripping Curve: Type C
Breaking Capacity: 6kA
Compliance Standard: IEC/EN 60898-1
Mounting Type: DIN Rail
Product Overview
The Chint NXB-63 3P C63 MCB is the highest-rated current model in the NXB-63 3P series, designed to safeguard high-load three-phase installations. With a 63A current rating and a Type C tripping characteristic, it is ideal for circuits supplying heavy machinery, large HVAC systems, industrial panel boards, and submain feeders.
Engineered with a 6kA short-circuit breaking capacity, it delivers dependable protection from overloads and faults in demanding environments. The 3-pole design ensures full-phase isolation and safety for three-phase loads.
Key Features
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🔋 63A Rated Current – Suitable for heavy-duty loads and high-capacity feeders
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⚡ 6kA Breaking Capacity – Rapid short-circuit protection to prevent system damage
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🔄 Type C Tripping Curve – Supports inductive loads with moderate inrush current
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🔌 3 Pole Protection (3P) – Simultaneous disconnection of all three phases
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🧲 DIN Rail Mounting – Fast, secure installation in commercial and industrial panels
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✅ Complies with IEC/EN 60898-1 – Internationally certified for electrical safety
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chint |
| Series | NXB-63 |
| Rated Current (In) | 63A |
| Voltage Rating (Ue) | 400V AC |
| Number of Poles | 3P |
| Tripping Curve | Type C |
| Breaking Capacity | 6kA |
| Frequency | 50/60 Hz |
| Mounting Type | DIN Rail |
| Operating Temperature | -5°C to +40°C |
| Compliance Standard | IEC/EN 60898-1 |
Typical Applications
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Sub-distribution panels in industrial settings
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Generator or UPS output protection
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Large compressors and HVAC control units
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Workshop distribution boards with high-power tools
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Commercial main feeders and panelboards
Why Choose Chint NXB-63 3P C63?
The NXB-63 3P C63 offers maximum-rated protection in the miniature breaker range, combining robust power handling with quick fault response and easy installation. Backed by Chint’s global reputation, it's a top-tier solution for professionals requiring safe and reliable three-phase circuit protection.
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