文件编号：
NDT2920002
文件版本：
5
地址：上海市浦东新区申江南路
2000
号
邮编：
201315
电话：
(021)68586699
传真：
(021)23025796
第
26
页
共
39
页
NDM3E-400
150
198
190
238
NDM3E-630
210
280
250
320
NDM3E-800
210
280
250
320
注：断路器排装或叠装时，检查联接母排或电缆保证空气绝缘距离不会减少
Note: Check the connected busbar or cable during rowing or stacking of
7.3 断路器叠装之间最小距离
7.3 Minimum center distance between stacked circuit breakers
规格
Specification
H(断路器上下距离)
H (distance of circuit breaker from bottom)
带端子罩
With a terminal
cover
不带端子罩
Without a terminal
cover
NDM3E-125
90
91
NDM3E-250
90
93
NDM3E-400
155
155
NDM3E-630
155
155
NDM3E-800
155
155
注：1、电缆绝缘联接
2、联接且无绝缘
3、产品通电前检查端子罩或相间隔板装配到位。
Note:
1. Cable insulating connection
2. Connection without insulation
3. Check whether the
a terminal cover
or phase partition is assembled
properly before products are energized.
8.
附件说明书/ Accessory
. 8.1 绝缘测试 Insulation test
本断路器出厂前已按标准规定绝缘测试。因断路器带有电子线路板，安装前如进行复测，必须按如下
步骤：
The breaker has gone through specified standard insulation test before factory delivery.
Because many PCBs are installed in the breaker, for re-testing, please conduct tests according
to following procedures:
（1）用 500VDC 兆欧表。
（2）在断路器处于断开状态，对进出连接板 1-2、3-4、5-6 之间，和 1、3、5 连接板（3 个连接板用
导线相连）与外壳之间（外壳用金属箔覆盖）分别进行。
（3）对接至主电路的欠电压脱扣器，在进线与断路器外壳间。
（4）绝缘电阻不小于 20MΩ。
(1)Use a 500VDC megameter.
(2)Place the breaker in open status, carry out test between 1-2, 3-4 and 5-6 connection boards,
as well as between the 1, 3 and 5 connection boards (connected with wires) and the breaker shell
(covered by metal foil).
(3)Test should be done in position between incoming wire and breaker shell to test Under-voltage
release in the main circuit.
(4)Insulation resistance should not be lower than 20MΩ.
注: 也可分离电子线路板后进行绝缘测试。Notes: Insulation test can also be done after separation of PCBs.
8.2 安装 Installation
请安装于金属等阻燃物上。断路器可垂直安装，也可以水平安装。Please install the breaker on
flame retardants such as metal, etc. It can be installed vertically or horizontally.
产品垂直安装时，安装面与垂直面的倾斜角度≤± 22.5°。When the product is installed
