background image

 

文件编号:

NDT2920257 

文件版本:

 

地址:上海市浦东新区申江南路

2000

           

邮编:

201315         

电话:

(021)68586699         

传真:

(021)23025796

                                 

  8 

 

  17 

 

%

 

NDM3EU-400 

Ir

A

 

见表

3 See table 3 

脱 扣 特 性

Tripping 

Characteri

stics 

Tr

s

 

12 

60 

100 

150 

≤1.05Ir 

2h

不脱扣

Non-tripping   

1.30Ir 

1h

脱扣

tripping   

1.5Ir,tr

s

  21.3 

106.7 

177.8 

266.7 

2.0Ir,tr

s

  12 

60 

100 

150 

7.2Ir,tr

s

  0.93 

4.63 

7.72 

11.57 

精度

Accuracy

%

 

±10 

 

注:动作曲线符合

tr=

2Ir

2

×

Tr/I

2     

tr:

过载长延时动作时间

    Tr

:过载长延时动作时间整定值

   

I

:实际运行电流

                Ir

:过载长延时动作电流整定值

 

Note:Curve is satisfied tr=

2Ir

2

×

Tr/I

2     

tr: Overload long-time delay time      Tr: Overload long-time delay setting time

 

I

working current                          Ir: Overload long-time delay setting current 

2)

过载长延时具有热记忆功能,在产品脱扣后的

30min(NDM3EU-225)/20min(NDM3EU-400)

内有效

NDM3EU-225

需要

DC24V

辅助电源)

 

当第一次脱扣的能量是

QT =

2 * Ir

2

 * T

时,

T

是行程时间。

 

能量

Q1

在间隔

T1 = QT

×

T1 / Tthm

时损失,第二次脱扣所需的能量为

Q0

,即第二次脱扣时间为

t =

QT-Q1

/

2 * Ir

2

有关热记忆功能,

请联系制造商

       

The overload long delay has a thermal memory function, which can be activated 30minutes (NDM3EU-225) 

/ 20 minutes (NDM3EU-400) after the tripping of the circuit breaker .(NDM3EU-225 requires DC24V auxiliary 

power supply to realize this function). 

When the energy of the first trip is QT = (2 * Ir) 

2

 * T, T is the trip time. The energy Q1 lost at interval T1 = 

QT×T1/Tthm, the energy required for the second trip is Q0, that is, the second trip time is t = (QT - Q1) / (2* Ir) 

2

For thermal memory function, please contact the manufacturer. 

3

)短路短延时保护(见表

6

Short circuit short-time delay protection (Table 6) 

短延时保护防止配电系统的阻抗性短路。分成两段:反时限段,定时限段。

 

Short circuit short-time delay protection is used to prevent short cirtuit of power distribution system,which is 

divided into two parts: inverse time and fixed time 

6 Table6 

Isd 

(×

Ir

 

见表

3 See table 3

 

脱扣特性

Tripping 

Characteristics   

反时限

Inverse time 

Is

I

1.5Is 

Tsd

s

 

0.1 

0.2 

0.3 

0.4 

ts

s

 

ts=

1.5Isd

2

×

Tsd/I

2

 

定时限

Fixed time 

ts=Tsd

s

 

0.1 

0.2 

0.3 

0.4 

Summary of Contents for NDM3EU Series

Page 1: ...021 23025796 第 1 页 共 17 页 上海良信电器股份有限公司 Shanghai Liangxin Electrical Co Ltd NDM3EU 系列塑壳断路器 UL489 NDM3EU Series Molded Case Circuit Breaker UL489 产品说明书 Product Manual IPD ENG DEV T32 A1 2020 09 04 编制 日期 审核 日期 会签 日期 批准 日期 朱世嘉 张颖 王虎 2020 09 09 2020 09 21 2020 10 13 吴春艳 2020 10 13 ...

Page 2: ... 201315 电话 021 68586699 传真 021 23025796 第 2 页 共 17 页 修订记录 版本 修订原因 内容 实施日期 编制人 审核人 批准人 3 使用新模板 增加外形图尺寸公差要求 EU 系列说明书合并 Applied new template added tolerances to external dimension combined the manual of EU series 20200914 朱世嘉 Zhu S 张颖 Zhang Y 吴春艳 Wu C ...

Page 3: ...long delay inverse time limit short circuit transient short circuit short delay protection function it can protect the line and power equipment from damage The product is RoHS compliant The circuit breaker has an isolating function with the corresponding symbol of Also comply with standards IEC60947 2 GB T 14048 2 and certify by TUV Rheinland 2 型号说明 Description of model 型号说明见下表 1 Description of mo...

Page 4: ...Technical parameters 3 1 NDM3EU 主要技术参数见下表 2 Main technical parameters of NDM3EU are shown as follow Table 2 表 2 主要技术参数 Table 2 Main technical parameters 型号 规格 Model and specification NDM3EU 225 NDM3EU 400 极数 Numbers of poles 3 额定电流 In A Rated current In A 225 400 整定电流 Ir A Setting Current Ir A 100 110 125 150 175 200 225 250 300 350 400 额定绝缘电压 Ui V Rating insulation voltage Ui V 800 额定冲击耐受电压 Uimp ...

Page 5: ...7 8 9 10 12 14 In 0 05s 3 2 NDM3EU 控制器电流 时间调整 Current and time adjustment of NDM3EU controller 控制器电流 时间的调整必须由专业技术人员负责 Adjustment of current and time of the controller should be carried out by specialized technical personnel 3 2 1 NDM3EU 控制器控制面板图及参数组成 Components of the control panel figure and parameter of NDM3EU controller 断路器控制面板组成部分 Components of the breaker s control panel 1 测试端口 TEST 2 过载长延时整定...

Page 6: ... 2 Tr I 表示过载情况下 主回路实际电流值 The current and time knobs can be adjusted to select the appropriate combination to protect the circuit and protect the device This operation must be performed by a professional technician Note Tr indicates the breaker operating time when the actual current is twice the Ir setting value For example when Ir is set to 400 and Tr is set to 12s when the main circuit current is...

Page 7: ...1 0 2 0 3 0 4 3 4 5 6 7 8 9 10 12 14 3 3 1 基本功能表 见表 4 Basic fuction Table 4 表 4 Table 4 保护功能 Protection fuction 其它功能 Other 种类 Type 过载长延时保护 Overload long time delay protection 热记忆功能 thermal memory function 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...

Page 8: ... Q1 2 Ir 2 有关热记忆功能 请联系制造商 The overload long delay has a thermal memory function which can be activated 30minutes NDM3EU 225 20 minutes NDM3EU 400 after the tripping of the circuit breaker NDM3EU 225 requires DC24V auxiliary power supply to realize this function When the energy of the first trip is QT 2 Ir 2 T T is the trip time The energy Q1 lost at interval T1 QT T1 Tthm the energy required for t...

Page 9: ...eeded quick break 表 7 Table 7 脱扣特性 Tripping Characteristics Ii In 见表 3 See table 3 脱扣时间Tripping time 0 85Ii 不脱扣 Non tripping 1 15Ii 50ms 4 工作环境 Working Environment 4 1 存放的环境条件见下表 8 Storage condition is shown as follow Table 8 表 8 存放环境条件表 Table 8 Storage condition 项目 Item 规范 Specifications 周围温度 Ambient temperature 40 75 相对湿度 Relative humidity 环境温度 25 时 95 when ambient temperature is 25 95 4 2 使用环境 ...

Page 10: ...t exceed 25 and the highest humidity in this month should not exceed 90 while condensation on breaker surface caused by temperature change should be taken into consideration 海拔高度 Altitude 不超过 2000m Lower than 2000m 污染等级 Pollution degree 3 级 Level 3 温度降容系数见下表 10 Temperature de rating coefficient is shown as follow Table 10 表 10 温度降容系数 Table 10 Temperature de rating coefficient 温度 Temperature 40 45 ...

Page 11: ...ion factor of working voltage Ue Ue 0 83Ue 0 77Ue 0 71Ue 0 67Ue 0 63Ue 工频耐压修正系数 40 Correction factor of power frequency withstand voltage U U 0 89U 0 85U 0 80U 0 77U 0 73U 5 产品外形及安装尺寸 Outline and installation dimensions 5 1NDM3EU 225 板前接线产品和安装开孔的外形尺寸 Dimensions of front connection and installation holes of NDM3EU 225 5 2 NDM3EU 225 插入式板后接线 含端子罩尺寸 Dimension of rear plug in of NDM3EU 225 with termin...

Page 12: ... installation holes of NDM3EU 400 5 4 NDM3EU 400 插入式板后接线 含端子罩 Dimensions of rare plug in of NDM3EU 400 with terminal cover 注 零飞弧必须要加端子罩 未注公差尺寸的极限偏差按 GB T 1804 c Note For zero flashover lengthened terminal cover is a must Maximum deviation of all dimensions without tolerance follows GB T 1804 c 5 5 板前接线产品连接铜排参考尺寸 见表 12 Copper Size of Wiring by front connection 插入式 可选 ...

Page 13: ...of Wiring screw M8 12 N m 106 lbf in 安装螺钉 M4 的扭紧力矩 N m Torque of Installation screw M4 2 4 N m 21 lbf in NDM3EU 400 接线螺钉 M10 的扭紧力矩 N m Torque of Wiring screw M10 20 N m 177 lbf in 安装螺钉 M5 的扭紧力矩 N m Torque of Installation screw M5 4 N m 35 lbf in 6 安装方式 Installation Mode 断路器可垂直安装 也可水平安装 Product can be installed either horizontally or vertically 垂直安装 Vertical installation 水平安装 Horizontal installatio...

Page 14: ...图 Wiring Schematic of Auxiliary Contact 表 15 Table 15 附件名称 Accessory name 辅助触头 Auxiliary Contact 电压规格 Voltage 约定发热电流 Current AC120V 5A AC240V 3A DC24V 300mA DC48V 10mA 内阻 Internal Resistance 30mΩ 8 使用和维护 Operation and Maintenance 8 1 确认端子连接和固定螺钉均应紧固无松动 8 1 make sure that lug and busbar connection screws are tightened without any loosing 8 2 确认断路器的相间隔板是否安装完好 8 2 make sure that the insulation partit...

Page 15: ...n situation wipe the oxidation with guaze clean and tighten the screws and nuts with dissolvable detergent 9 注意事项 Notice 9 1 安装注意事项 Notices for Installation 1 断路器本体固定在安装板上 2 与主电路连接必须由具有专业资格的人员进行配线作业 3 确认输入电源处在完全断开的情况下 才能进行配线作业 4 必须安装本体后再进行配线 1 Circuit breaker body should be fixed on installation board 2 Connection wiring to the main circuit should be conducted by professionals 3 Before wiring make...

Page 16: ... disaster or any secondary disaster 9 2 2 售后服务 Aftersales Services 1 出现故障时 请与供货商或本公司售后服务部门联系 2 保修期内的修理或更换 由于本公司制造上的问题所造成的故障 作无偿修理 以至更换 3 超过保修期后的修理或更换 在修理后能维持功能的场合下 作有偿修理 否则作有偿更换 1 When malfunction happens please contact the supplier or aftersales department of our company 2 Repairing or replacing within warranty period if the quality issue happens in manufacturing the products will be repaired up ...

Page 17: ...of switchboard 021 68586699 营销传真 Marketing fax 021 23075796 技术热线 Technical hotline 400 99 02706 邮政编码 Zip Code 201315 股票代码 Stock Code 002706 电子邮箱 Email liangxin sh liangxin com 公司网址 Website www sh liangxin com 总部地址 上海市浦东新区申江南路 2000 号 Address of headquarter No 2000 Shenjiang South Rd Pudong New District Shanghai China ...

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