电机与配套的断路器/接触器/热继电器参数对照表

2018/2/13 0:02:34 人评论 次浏览 分类:电工基础  文章地址://www.e-cumulus.com/tech/1772.html

昌晖仪表整理了电机与配套的断路器/接触器/热继电器参数对照表,大家根据一台电动机的额定功率,即可对应查看该电机的额定电流、所配置断路器、接触器和热继电器参数,非常方便实用。

电机与配套的断路器/接触器/热继电器参数对照表(本表为380V 1类配合的电动机保护配合表)
电机额定功率kW    电机额定电流A     断路器额定电流A      断路器瞬动电流A      接触器额定电流A     热继电器整定值A
3                            6.86                         10                         240                         8.5/9                     6.3-9.0
4                            8.48                         10                         240                         8.5/9                     7.5-11
5.5                         11.5                         16                         240                         11.5/12                  9.0-13
7.5                         15.1                         20                         240                         15.5/16                  12-17.6
11                          22                            32                        12In                        22/25                     18-25
15                          29.5                         40                        12In                        30/32                      24-32
18.5                       35                            50                        12In                        37/40                      30-45
22                          42                            63/100                 12In                        44/50                     30-45
30                          56.6                         80/100                 12In                        65/63                      45-63
37                          70.6                         100/160               12In                        85/75                      57-82
45                          84.9                         125/160               12In                        85/95/100              70-105
电机额定功率kW    电机额定电流A     断路器额定电流A      断路器瞬动电流A      接触器额定电流A     热继电器整定值A
55                          102                          160/160               12In                        105/110/125          80-115
75                          137                          200/250               12In                        170/145/160          110-160
90                          163                          225/250               12In                        170/185/200          140-200
110                        204                          315/400               12In                        245/210/250          160-250
132                        237                          350/400               12In                        245/260/250          160-25
160                        282                          400/400               12In                        370/300/315          250-400
200                        360                          500/630               12In                        370/400                 310-500
250                        444                          630/630               12In                        500                         310-500
280                        497                          630                       12In                       500                         310-500
相对于频繁启动或线路过长的建议放大电流20%以确保接触器安全使用,同样断路器合热继电器也放大20%电流。电动机小于5kW通常采用直接启动,大于55kW采用星三角启动或软启动。

如果您觉得电机与配套的断路器/接触器/热继电器参数对照表对您工作有帮助,别忘记使用页面右侧分 享按钮分享给更多朋友!

相关阅读
三相异步电动机原理和结构
三相异步电动机的典型应用及控制电路
如何判断三相异步电动机的磁极对数和转速
电动机三相绕组的星形接线法和三角形接线法

共有访客发表了评论 网友评论

  客户姓名:
邮箱或QQ:
验证码: 看不清楚?