Schneider Electric ComPacT NSX160N

Schneider Electric’s ComPacT NSX160N is a high-performance Disjuntor em caixa moldada (MCCB), primarily used for overload protection, proteção contra curto-circuito, and isolation functions in low-voltage power distribution systems.

1. Basic Parameters and Design

Quadro atual: 160UM (adjustable range: 112-160UM)

Quebrando Capacidade: Class N (50o), suitable for 380-415V AC systems; up to 90kA at 220V, and reduced to 10kA at 690V

Número do pólo: 3P or 4P (In the 4P model, the neutral wire (N) is located on the left; the 3D design indicates that the N wire is not involved in protection)

Tensão nominal: 690V e (50/60Hz), meeting the power distribution needs of most industrial and commercial applications

Tipo de unidade de viagem: TMD (Thermomagnetic Trip Unit), providing overload (eu) and short-circuit (EU) proteção, incluindo:

Proteção contra sobrecarga (Ir): Adjustable range of 0.7-1×In (160UM)

Proteção contra curto-circuito (Ii): Fixed value of 1250A (aproximadamente 7.8 vezes a corrente nominal)

1. Estrutura e Instalação

Método de instalação: Supports fixed, plug-in, and withdrawable mounting, enabling flexible adaptation to different cabinet designs

Dimensões Gerais:

4P model: Width 140mm × Height 161mm × Depth 86mm, weight 2.6kg

3P model: The width may be narrower (105mm according to some data), and confirmation is required based on the specific model

Connection Method: Front connection design, with a terminal spacing of 35mm, suportando instalação horizontal ou vertical

III. Functions and Certifications

Funções de proteção:

Basic type: Provides long-time overload (eu) and instantaneous short-circuit (EU) proteção, em conformidade com a IEC 60947-2 padrão

Optional expansion: Proteção contra vazamento, undervoltage tripping, remote control (por exemplo, MX/MN coils) can be realized by adding modules

Função de isolamento: Complies with the EN/IEC 60947-2 standard and can be used as an isolator

Adaptabilidade Ambiental:

Temperatura operacional: -25°C a +70°C, umidade ≤95% (sem condensação)

Certifications: CCC, EAC, Marine certifications, adequado para indústrias, comercial, and marine environments

1. Cenários de aplicação

Power Distribution Systems: Used as a main switch or branch switch to protect circuits for motors, iluminação, and mixed loads

Industrial Control: Cooperates with devices such as contactors and relays to build automatic control circuits

Renewable Energy: Suitable for overcurrent protection in distributed generation systems such as solar energy and wind energy

1. Replacement and Upgrading

Replacement Models: Para maior capacidade de interrupção, NSX160H (70o) or NSX160L (100o) pode ser selecionado

Digital Upgrading: The new generation of ComPacT NSX series (por exemplo, NSX160N-D) supports the EcoStruxure Power architecture and can integrate functions such as wireless monitoring, energy metering, and service life prediction

1. Recomendações de seleção
2. Correspondência atual: Calculate the rated current (Em) based on the load, and ensure that the trip unit setting covers the normal operating current
3. Quebrando Capacidade: Select the breaking capacity class (N/H/L) according to the short-circuit current level at the installation location
4. Expansão de acessórios:

Auxiliary Contact (OF): Used to indicate the status of the circuit breaker

Motorized Operating Mechanism (MT): Enables remote switching on and off

Leakage Module (Vigi NSX): Provides residual current protection

VII. Precauções

Installation Specifications: Must comply with IEC 60947-2 and local electrical installation standards, and ensure that the terminal torque meets the requirements

Recomendações de manutenção: Regularly inspect the contact wear condition; clean the arc-extinguishing chamber and test the tripping characteristics every 2-3 anos