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Chint NXB-63 1P C40 Miniature Circuit Breaker – 40A, 6kA Breaking Capacity, Type C Curve, Single Pole MCB for High-Load Electrical Protection
Chint NXB-63 1P C40 Miniature Circuit Breaker – 40A, 6kA Breaking Capacity, Type C Curve, Single Pole MCB for High-Load Electrical Protection
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Product Code: NXB-63-1P-C40
Brand: Chint
Product Type: Miniature Circuit Breaker (MCB)
Pole Configuration: 1 Pole (1P)
Rated Current: 40 Amperes (40A)
Tripping Curve: Type C
Breaking Capacity: 6kA
Compliance Standard: IEC/EN 60898-1
Mounting: DIN Rail
Product Overview
The Chint NXB-63 1P C40 MCB is a high-capacity miniature circuit breaker designed for high-load single-phase circuits. With a 40A rated current and a Type C tripping characteristic, it is ideal for protecting electrical systems that include inductive loads with moderate inrush current—such as HVAC systems, power tool banks, or submain feeders.
Its 6kA breaking capacity ensures safe disconnection of the circuit during short circuits or severe overloads, making it suitable for residential, commercial, and light industrial installations.
Key Features
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🔋 40A Current Rating – Designed for heavier single-phase loads and sub-main protection.
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⚡ 6kA Breaking Capacity – High-level short-circuit protection for reliable system safety.
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🔄 Type C Tripping Curve – Suitable for circuits with moderate startup surges.
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🧲 DIN Rail Mounting – Simplifies installation in standard electrical panels.
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🏗️ Rugged & Compact – Space-saving profile and durable for extended operation.
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✅ Standards-Compliant – Built to IEC/EN 60898-1 for assured protection and quality.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chint |
| Series | NXB-63 |
| Rated Current (In) | 40A |
| Voltage Rating (Ue) | 230/240V AC |
| Number of Poles | 1P |
| 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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Submain circuit protection in homes and offices
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Industrial socket outlets and panel distribution
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HVAC units and high-powered equipment
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Multi-outlet power circuits in workshops
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Backup power and inverter outputs
Why Choose Chint NXB-63 1P C40?
The NXB-63 1P C40 MCB offers a powerful, certified solution for modern power distribution systems that require higher current protection. Its durable design, ease of installation, and trusted Chint brand reputation make it a smart choice for demanding installations requiring 40A circuit protection with safe, responsive tripping.
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