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Chint NXB-63 2P C40 Miniature Circuit Breaker – 40A, 6kA Breaking Capacity, Type C Curve, Double Pole MCB for High-Power Circuit Protection
Chint NXB-63 2P C40 Miniature Circuit Breaker – 40A, 6kA Breaking Capacity, Type C Curve, Double Pole MCB for High-Power Circuit Protection
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Product Code: NXB-63-2P-C40
Brand: Chint
Product Type: Miniature Circuit Breaker (MCB)
Pole Configuration: 2 Pole (2P)
Rated Current: 40 Amperes (40A)
Tripping Curve: Type C
Breaking Capacity: 6kA
Standard Compliance: IEC/EN 60898-1
Mounting: DIN Rail
Product Overview
The Chint NXB-63 2P C40 MCB is a double-pole miniature circuit breaker designed for medium-to-high load single-phase circuits. With a 40A current rating, it is well suited for applications such as HVAC systems, industrial socket outlets, and sub-main feeders. The Type C tripping curve accommodates circuits with moderate inrush currents, ensuring stability during equipment startup.
This MCB also features a 6kA short-circuit breaking capacity, offering fast and reliable protection against overloads and faults across both phase and neutral lines.
Key Features
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🔋 40A Rated Current – Supports demanding residential and light industrial loads.
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⚡ 6kA Breaking Capacity – Ensures safe interruption during fault conditions.
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🔄 Type C Tripping Curve – Ideal for loads with moderate inrush, such as compressors or heavy lighting.
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🔌 2P Configuration – Provides complete disconnection of both live and neutral lines.
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🧲 DIN Rail Mounting – Fast and easy installation in all standard distribution panels.
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✅ IEC/EN 60898-1 Certified – Complies with international quality and safety standards.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chint |
| Model Series | NXB-63 |
| Rated Current (In) | 40A |
| Voltage Rating (Ue) | 230/240V AC |
| Number of Poles | 2P |
| 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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HVAC equipment and compressors
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Submain circuit protection in homes and offices
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Generator/inverter outputs
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Multi-socket clusters in commercial settings
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Control panels in light industrial facilities
Why Choose Chint NXB-63 2P C40?
The NXB-63 2P C40 MCB delivers robust dual-pole protection for circuits that carry moderately high loads. Trusted worldwide for performance and safety, Chint's design ensures long-lasting durability, ease of installation, and total peace of mind in every application.
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