适用范围与用途/ Application Scope; 型号说明/ Model And Implication - nader NDM3L Series Product Manual

1. 适用范围与用途/ Application scope
本断路器主要应用于交流 50/60Hz，额定工作电压 415V，额定工作电流至 630A 的电路中作不频繁转
换及电动机不频繁起动之用。 断路器具有过载、 短路和欠电压保护功能， 能保护线路及电源设备不受损坏，
同时还可以对过电流保护不能检测的长期存在的接地故障可能引起的火灾危险和人身触电提供保护。
The breaker is mainly applied to infrequent changeover in a circuit with alternate current of 50/60Hz, rated
working voltage of 415V and rated working current to 630A, and to the infrequent start of electric motor. The
breaker has overload, short circuit and undervoltage protection functions that can prevent the line and power unit
from being damaged while protecting the possible fire danger and electric shock by the long-term failure of
ground connection which fails to be detected by overcurrent protection.
2. 型号说明/ Model and implication
ND M 3 L - □
1 2 3 4
序号 序号名称
SN SN name
企业代号
1
Enterprise code
产品代号 Product
2
code
设计序号 Design
3
SN
系列派生代号
4
Derived code of
the series
壳架等级
5
Shell frame level
操作方式
6
Operation mode
功能派生代号
7
Derived code of
延时类型
the function
8
Delay type
极数 Number of
9
poles
脱扣器代号
10
Release code
附件代号
11
Accessory code
用途代号
12
Application code
4 极产品中 N 极
13
(中性极)形式
地址：上海市浦东新区申江南路 2000 号
文件编号：NDT2920019
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NDM3L
ND： "Nader"牌低压电器 ND: "Nader" low-voltage apparatus
M：塑料外壳式断路器 M: Molded case circuit breaker (MCCB)
3
L: 剩余电流保护 L: Residual current protection
125、250、400、630
无代号：手柄直接操作 No code: Direct handle-operated mode
P：电动操作 P: Motor-operated
Z：转动操作 Z: Rotary operation
无代号：AC 型漏电保护类型
A：A 型漏电保护类型 A: Type A current leakage protection type
No code: Type AC current leakage protection type
X：非延时 X: Non-time delay
Y：延时 Y: Delay
3, 4
0：无脱扣器 0: Release (none)
2：仅有瞬时脱扣器 2: Instantaneous tripper only
3：复式脱扣器 3: Complex tripper
参见表 1See Table 1
无代号：配电型 No code: Power distribution type
2：电动机保护型 2: Motor protection type
A：N 极不安装过电流脱扣器，且 N 极始终接通
A: The N-pole isn't installed with an overcurrent release, but always
connected
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邮编：201315 电话：(021)68586699
文件版本：4
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传真：(021)23025796