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3TB AC contactor
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Application
The contactor is suitable for use in the circuits up to the rated voltage 660V AC 50Hz or 60Hz,rated current 630A, for making and breaking ,and for frequent starting and controlling the motor.After combined with the mechanical interlocking device,it becomes 3TD series convertible contactor for controlling,starting, breaking and reversing of the motor. The products comply with IEC947 & VDE0660..
Specifications
Type
Rated
thermal current
(A)
Rated operating current at 380V
(A)
Rated operating current at 660V
(A)
The power of controlled motor
(KW)
Type of auxiliary contact
380(V)
660(V)
3TB40
22
9
7.2
4
5.5
1NO
1NC
1NO+1NC
2NO+2NC
3TB41
22
12
9.5
5.5
7.5
3TB42
35
16
13.5
7.5
11
3TB43
35
22
13.5
11
11
3TB44
55
32
18
15
15
2NO+2NC
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