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NSX

塑料外壳式断路器

Plastic Case Circuit Breaker

概述 /Overview

NSX 系列塑料外壳式断路器 ( 以下简称断路器 ) 是我公司开发的新产品，其设计体现了最高的限流原理和制造技术，具有结构紧凑，全模块化，高分断，
零飞弧等特点。其额定绝缘电压为 750V，适用于交流 50Hz, 额定工作电压 690V 及以下，额定工作电流至 630A 的电路中作不频繁的转换及电动机不频
繁的起动之用，断路器具有过载，短路和欠电压保护装置，能保护线路及电源设备不受损坏。
断路器按照其额定极限短路分断能力 (ICU) 的高低，分为：N 型 ( 标准型 ) ，H 型 ( 较高分断型 ) ，L 型 ( 限流型 )。
本断路器可垂直安装 ( 即竖装 )，亦可水平安装 ( 即横装 )，本断路器不能倒进线，即只可 1、3、5 接电源线，2、4、6 接负载线。
本断路器执行下列标准：IEC60947-1 及 GB/T14048.1 总则、IEC60947-2 及 GB14048.2 低压断路器、IEC60947-4 及 GB14048.4 接触器及电动机
起动器、IEC60947-5 及 GB14048.5 机电式控制电路电器。
NSX series plastic case circuit breaker (hereinafter referred to as circuit breaker) is a new product developed by our company. Its design reflects the
highest current limiting principle and manufacturing technology. It has compact structure, full modularity, high breaking, zero arcing and so on. . Its rated
insulation voltage is 750V, suitable for AC 50Hz, rated working voltage 690V and below, rated operating current to 630A for infrequent conversion and
infrequent starting of motor, circuit breaker with overload, short circuit and under voltage The protection device protects the line and power equipment
from damage.
Circuit breakers are classified according to their rated limit short-circuit breaking capacity (ICU): N type (standard type), H type (higher breaking type), L
type (current limiting type).
The circuit breaker can be installed vertically (ie, vertical) or horizontally (ie, horizontally mounted). The circuit breaker cannot be inverted into the line, that
is, only the power lines can be connected to 1, 3, and 5, and the load lines can be connected to 2, 4, and 6. .
The circuit breaker implements the following standards: IEC60947-1 and GB/T14048.1 general, IEC60947-2 and GB14048.2 low voltage circuit
breakers, IEC60947-4 and GB14048.4 contactors and motor starters, IEC60947-5 and GB14048.5 Electromechanical control circuit electrical
appliances.

型号含义 /Model Meaning

NSX - □ □ / □ □ □ □
操作方式 ( 直接作无代号，电动操作 P 表示，转动手柄操作用 Z 表示 )
Operation mode (direct no code, electric operation P means, rotary handle operation is indicated by Z)
用途代号 ( 配电用无代号，保护电动机用 2 表示 )/Use code (no code for power distribution, 2 for protection motor)
脱扣器方式及附件代号 /Trip unit method and accessory code
极数 ( 二极为 2；三极为 3；四极中 N 极带保护为 4C，四极中 N 极不带保护为 4B)
The number of poles (two extremes 2; three extremes 3; four poles in the four poles are protected to 4C, and
the four poles in the quadrupole are not protected as 4B)
额定极限短路分断能力级别 (N: 标准型，H：较高分断型，L：限流型 )
Rated limit short-circuit breaking capacity level (N: standard type, H: higher breaking type, L: current limiting type)
壳架等级额定电流 /Rack rated current
塑料外壳式断路器 /Plastic case circuit breaker

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