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3TF AC Contactor
3TF AC Contactor
Application
 
3TF series AC contactors are suitable in electrical system with AC 50/60Hz, rated operational voltage up to 380V, rated operational current up to 630A to make or break temote motors or system. They can form electronmagnetic starters with suitable thermal overload relays 3UA series to protect system and motors against overload or phase-failure. They are made according to IEC947, BS5424 & VDE0660. The contactor is a straight motion mechanism having double-breaking contacts. The auxiliary contacts are arranged 2NO, 2NX at most. It is employed the flexible locking connection between the contact support and core. There are no arc- isolated panel in the le≥2A contactors. In the In≥2A contactors, there are moulded arc-chute with arc-isolated panel. Because all contacts are made of high non-fusibility and against corrosion silver alloy. All series products can be mounted by screws, le≥2A contactor also by installation rail.
 
Specificarions
Type
Rated
thermal
current (A)
Rated operation
current (A)
Controllabe of motor (KW)
Type
of auxiliary
contact
AC-3 AC-4
380V 660V 380V 660V 380V 660V
3TF40
20
9
7
4
5.5
1.4
2.4
NO
NC
1NO+1NC
2NO+2NC
3TF41
20
12
8.5
5.5
7.5
1.9
3.3
3TF42
30
16
12.5 7.5 11
3.5
6
3TF43
30
22 16.5 10 15
4
6.6
3TF44
55
32
24
15
22
7.5
13
3TF45
55
38
24
18.5
22
9 15.5
3TF46
80
45
40
22
37
12
20.8
3TF47
80
63
60
30
55
14
24.3
2NC+2NO
4NC+4NO
3TF48
100
75
60
37
55
17
29.5
3TF49
100
85
80
45
75
21
36
3TF50
160
110
95
55
90
27
46.9
3TF51
160
140
120
75
110
35
60
3TF52
200
170
160
90
150
38
66
3TF53
210
205
165
110
160
50
86
3TF54
300
250
230
132
220
58
100
3TF55
300
300
260
160
250
66
114
3TF56
400
400
380
200
335
81
140
3TF68
630

630
600
335
560
160
278
 
 
 
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Tel:4008627668 +86-577-62719178  61719176   Fax: +86-577-62779568    E-mail:  export@electrolines.cn    
Add:No.26th,Lingyun Road,Dongfeng Industrial Zone,Liushi Town,Wenzhou City,Zhejiang Province,P.R.China.
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