background image

 

文件编号:

NDT-02226 

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

                                 

  4 

 

  12 

 

1.

 

用范围与用途/ Application scope 

NDR3E-65/95 电子式过载继电器适用于交流 50Hz/60Hz、额定电压至 690V、电流 20A 至

95A 的电路中,作三相交流电动机的过载、断相和三相电流不平衡保护之用;能与 NDC3-65/95
交流接触器组合成电机起动器。

 

NDR3E-65/95ectronic overload relays provide the overload

phase failure and unbalance 

protection for three-phase AC motors in the circuit with the AC 50Hz/60Hz, the rated voltage up to 
690V and the current from 20A to 95A,they can be used as motor starters with the NDC3-65/95 AC 
contactors. 

2.

 

型号说明/ Model and implication 

ND    R    3    E    - 

□ □ /□/□

 

1      2    3    4          5    6      7    8 

序号

 

SN 

序号说明

 

SN description 

NDR3E

型号

 

  NDR3E model     

企业代号

 

Enterprise code 

ND:             

牌低压电器

 

    brand low-voltage electrical appliance 

产品代号

 

Product code 

R: 

过载继电器

 

R:Relay 

设计序号

 

Design SN 

过载方式

 

Overload mode 

E: 

电子式

 

E: Electronic 

产品基型代号

 

Product basic-type code 

65

95 

整定电流规格代号

Setting 

range code 

见表

See Table 1 

辅助触头工作电压

 

Rated operating voltage of the 

auxiliary contact 

0:230V(AC-15) 230V

DC-13

 

1:400V(AC-15) 230V

DC-13

 

辅助电源电压

 

Rated power supply   

1

AC110V

(±

15%

50HZ/60HZ 

2

AC220V

(±

15%

50HZ/60HZ 

3

AC380V

(±

15%

50HZ/60HZ 

 

表 1 

Table 1 

电流规格代号 

Setting range code

 

整定电流调节
范围 

Setting 

current 

range/A

 

与熔断器一同使用的熔

断器类型 

Short circuit protection device

 

配套的接触器 

型号 

Contactor type

 

aM/A 

gG/A 

 

11 (65 壳架)

 

(65frame) 

20-50 

100 

160 

NDC3-40~80 

12(65 壳架) 
(65frame) 

32-80 

100 

160 

Summary of Contents for NDR3E-65

Page 1: ...699 021 23025796 1 12 Shanghai Liangxin Electrical Co Ltd NDR3E 65 95 NDR3E 65 95 electronic overload relay Product type Product Name Product Manual IPD ENG DEV T32 A0 2019 11 05 2020 10 10 2020 10 13...

Page 2: ...NDT 02226 0 2000 201315 021 68586699 021 23025796 2 12 0 New addition 20201009 Tingting Wang Yipeng Yu Xingfeng Wang...

Page 3: ...699 021 23025796 3 12 1 Application scope 4 2 Model and implication 4 3 Main technical parameters 5 4 Working conditions 8 5 Wiring Method 9 6 Shape dimension Dimension 9 7 Mounting Method 11 8 Applic...

Page 4: ...cation ND R 3 E 1 2 3 4 5 6 7 8 SN SN description NDR3E NDR3E model 1 Enterprise code ND brand low voltage electrical appliance 2 Product code R R Relay 3 Design SN 3 4 Overload mode E E Electronic 5...

Page 5: ...nductor 1 piece without terminals Minimum maximum cross section 2 5 25 mm2 4 35 mm2 1 Flexible conductor 1 piece with terminals 2 5 25 mm2 4 35 mm2 1 Solid conductor 1 piece without terminals 2 5 25 m...

Page 6: ...torque 0 8N m 3 Table 3 Action features SN Setting current Trip time Initial conditions Ambient air temperature Load balance of each phase 1 1 05In 2h Cold state 25 60 2 1 2In 2h 1 Following the seque...

Page 7: ...es I 4In and the fault time is 8min the automatic reset function locked after failure for consecutive three times it is necessary to perform the manual reset 4 Table 4 Indicator status and working con...

Page 8: ...ure 40 70 Storage temperature 60 80 4 2 3000m 5000m Altitude The altitude of the installation site is under 3 000m Negotiate with the manufacture when the altitude is up to from 3000m to 5000m 4 3 III...

Page 9: ...ical without isolation NDR3E 1 NDR3E 1 electrical circuit diagram electrical with isolation 6 Shape dimension Dimension 6 1 NDR3E 65 NDC3 GV 4011 S 8011 S NDR3E 95 NDC3 GV 9511 S mm Installation dimen...

Page 10: ...3 4011 S 8011 S NDR3E 65 55 0 8 195 5 1 5 121 4 0 8 37 5 0 8 128 1 NDC3GV 4011 S 8011 S NDR3E 65 55 0 8 195 5 1 5 127 9 0 8 37 5 0 8 128 1 NDC3 9511 S NDR3E 95 70 0 8 203 5 1 5 132 0 8 60 0 8 128 1 ND...

Page 11: ...dial switch in the left or right direction 8 2 The setting current can be adjusted by the dial knob 8 3 10 20 Adjust the trip class transfer dial switch in the left or right direction can keep the pr...

Page 12: ...tton and the NC NO will switch to opposite status immediately until you release the button On the other hand if the main circuit is off and only the power supply is on the NO NC will switch to opposit...

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