Download Print this page

nader NDM3EU Series Product Manual page 7

Molded case circuit breaker

Advertisement

When the overload indicator is always on, it means that the actual current exceeds 1.15 times of the overload
long delay setting current value Ir, which is in an overload state, and the circuit breaker will be disconnected after
a certain time.
3.3 控制器参数整定(见表 3)Setting Parameters of Controller (Table 3)
壳架等级
极数
Frame size
Pole
225
3
400
3
3.3.1 基本功能表(见表 4)Basic fuction (Table 4)
保护功能 Protection fuction
种类
过载长延时保护
Type
Overload long-time delay protection
短路短延时反时限保护
Short circuit short-time delay inverse time protection
短路短延时定时限保护
Short circuit short-time delay setting time protection
短路瞬时保护
Short circuit instantaneous protection
3.3.2 控制器整定值
(1)过载长延时保护 (见表 5)Overload long-time delay protection (Table 5)
过载长延时保护基于电流的真有效值(RMS) ,用来对过负荷进行保护。
Overload long-time delay protection is basic on the RMS of current, which is used to protect the load.
NDM3EU-225
Ir(A)
Tr(s)
≤1.05Ir
>1.30Ir
脱 扣 特 性
Tripping
1.5Ir,tr(s) 21.3
Characteri
2.0Ir,tr(s) 12
stics
7.2Ir,tr(s) 0.93
精度
Accuracy
地址:上海市浦东新区申江南路 2000 号
文件编号:NDT2920257
Ir(A)
Tr(s)
100,110,125,
12,60,80,100
150,175,
200,225
250,300,350,
12,60,100,150
400
见表 3 See table 3
12
>2h 不脱扣 Non-tripping
<1h 脱扣 tripping
±10
邮编:201315
第 7 页 共 17 页
表 3 Table 3
Isd(×Ir)
2,3,4,5,6,7,8,9,
10,OFF
2,3,4,5,6,7,8,9,
10,OFF
表 4 Table 4
表 5 Table 5
60
80
106.7
142.2
60
80
4.63
6.17
电话:(021)68586699
文件版本:3
Tsd(s)
Ii(×In)
0.1,0.2,0.30.4
3,4,5,6,7,8,9,
10,11,12
0.1,0.2,0.3,0.4
3,4,5,6,7,8,9,
10,12,14
其它功能 Other
热记忆功能
thermal memory function
100
177.8
100
7.72
传真:(021)23025796

Advertisement

loading
Need help?

Need help?

Do you have a question about the NDM3EU Series and is the answer not in the manual?

Subscribe to Our Youtube Channel

This manual is also suitable for:

Ndm3eu-225Ndm3eu-400Ul489