Disjuntor Chint Air Switch NXB63-3P/D32

Chint Air Switch NXB63-3P/D32 is a three-pole miniature disjuntor suitable for industrial and commercial scenarios, usado principalmente para proteção contra sobrecarga, short-circuit protection and circuit isolation. The following is a collation of its core information:

Model Parsing and Technical Parameters

Significado do modelo:

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

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

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

Parâmetros principais:

Tensão nominal: 400V e (3P specification), frequência 50Hz.

Quebrando Capacidade: 6o (está em conformidade com IEC 60898-1 padrão), 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..

Certificação: Certificado pelo CCC, CE, TUV, etc., mas a certificação UL não é explicitamente mencionada, so it may not be applicable to the North American market.

Cenários e funções de aplicativos

Campos Aplicáveis:

– 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.

Funções principais:

Proteção contra sobrecarga: When the current exceeds the rated value, a tira bimetálica aquece e dobra para desencadear o disparo.

Proteção contra curto-circuito: The electromagnetic tripping device quickly cuts off the circuit in case of a short circuit (tempo de resposta < 0.1 segundos).

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

Notas de instalação e uso

Método de instalação:

– Instalação de trilho guia padrão de 35 mm, supporting DIN EN 60715 padrão, 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 exemplo, 32A is recommended to use 6mm² copper wire).

Requisitos Ambientais:

– Faixa de temperatura operacional: -5℃ a +40 ℃, humidity ≤ 95%RH (sem condensação).

– Evite instalação em ambientes com alta temperatura, humidity or corrosive gases.

Sugestões de manutenção:

– 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.

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.

Suggestions for Alternative Solutions

Alternative Models for the North American Market:

– Se a certificação UL for necessária, 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.

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.