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電機與配套的斷路器/接觸器/熱繼電器參數(shù)對照表

2018/2/13 0:02:34 人評論 次瀏覽 分類:電工基礎(chǔ)  文章地址:http://prosperiteweb.com/tech/1772.html

昌暉儀表整理了電機與配套的斷路器/接觸器/熱繼電器參數(shù)對照表,大家根據(jù)一臺電動機的額定功率,即可對應(yīng)查看該電機的額定電流、所配置斷路器、接觸器和熱繼電器參數(shù),非常方便實用。

電機與配套的斷路器/接觸器/熱繼電器參數(shù)對照表(本表為380V 1類配合的電動機保護配合表)
電機額定功率kW    電機額定電流A     斷路器額定電流A      斷路器瞬動電流A      接觸器額定電流A     熱繼電器整定值A(chǔ)
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
電機額定功率kW    電機額定電流A     斷路器額定電流A      斷路器瞬動電流A      接觸器額定電流A     熱繼電器整定值A(chǔ)
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
相對于頻繁啟動或線路過長的建議放大電流20%以確保接觸器安全使用,同樣斷路器合熱繼電器也放大20%電流。電動機小于5kW通常采用直接啟動,大于55kW采用星三角啟動或軟啟動。

如果您覺得電機與配套的斷路器/接觸器/熱繼電器參數(shù)對照表對您工作有幫助,別忘記使用頁面右側(cè)分 享按鈕分享給更多朋友!

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