Disyuntor Chint Air Switch NXB63-3P/D32

Chint Air Switch NXB63-3P/D32 is a three-pole miniature cortacircuitos suitable for industrial and commercial scenarios, mainly used for overload protection, short-circuit protection and circuit isolation. The following is a collation of its core information:

1. Model Parsing and Technical Parameters

Significado del modelo:

Editorial-63: Chint NXB series miniature circuit breaker with a frame current of 63A.

3PAG: Three-pole design, Apto para circuitos trifásicos. (such as 400V systems).

D32: D-type tripping curve, corriente nominal 32A, suitable for loads with high inrush current (como motores).

Parámetros clave:

Tensión nominal: 400V y (3P specification), frecuencia 50Hz.

Capacidad de ruptura: 6el (cumple con IEC 60898-1 estándar), capable of quickly cutting off short-circuit current.

Característica de disparo: D-type curve, suitable for equipment with large starting current, como motores, transformadores, etc..

Proceso de dar un título: Certificado por CCC, CE, TUV, etc., pero la certificación UL no se menciona explícitamente, so it may not be applicable to the North American market.

2. Escenarios de aplicación y funciones

Campos aplicables:

– Overload and short-circuit protection for industrial power distribution systems, commercial buildings and residential three-phase circuits.

– Particularly suitable for motor control circuits, as it can withstand the instantaneous high current during motor startup.

Funciones principales:

Protección contra sobrecarga: When the current exceeds the rated value, la tira bimetálica se calienta y se dobla para provocar el disparo.

Protección contra cortocircuitos: The electromagnetic tripping device quickly cuts off the circuit in case of a short circuit (tiempo de respuesta < 0.1 artículos de segunda clase).

Función de aislamiento: After the handle is opened, the circuit can be safely maintained, meeting the requirements of electrical isolation.

3. Notas de instalación y uso

Método de instalación:

– Standard 35mm guide rail installation, supporting DIN EN 60715 estándar, with simple installation.

– The wiring method is top-in and bottom-out, and it is necessary to ensure that the cross-sectional area of the wire matches the current (Por ejemplo, 32A is recommended to use 6mm² copper wire).

Requisitos ambientales:

– Rango de temperatura de funcionamiento: -5℃ a +40℃, humidity ≤ 95%RH (sin condensación).

– Evite la instalación en ambientes con alta temperatura., humidity or corrosive gases.

Sugerencias de mantenimiento:

– Regularly check the flexibility of the handle operation and the state of the contacts to ensure no ablation or oxidation.

– It is recommended to replace the circuit breaker after 10 years or 10,000 operations to ensure reliability.

4. Purchase and Market Applicability

Mercado internacional:

– This model has not explicitly obtained UL certification and may not comply with North American electrical standards (such as NEC).

– If American users need to use it, it is recommended to purchase through importers via Whatsapp: 0086-13811255435, but they need to confirm the compatibility and certification issues by themselves.

5. Suggestions for Alternative Solutions

Alternative Models for the North American Market:

– Si se requiere certificación UL, you can consider Chint’s NXB series variants designed for North America (such as NXB-63 3P D32 UL), or international brands such as Siemens 5SJ6 and ABB S203 series.

– Note that the commonly used voltage in North America is 120/240V, while NXB63-3P/D32 is a 400V specification, so direct use may require a transformer for voltage reduction.

6. Risk Tips

Compatibility Risks:

– Installation of non-UL certified products in the United States may violate local electrical regulations, leading to insurance claims rejection or safety hazards.

– Three-phase 400V equipment is incompatible with the North American single-phase 240V system, and a professional electrician is required to evaluate the transformation plan.