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AC Contactor

AC Contactor
AC Contactor
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Product Code : 3TF-52,53
Product Description

APPLICATION 

3TF Series AC Contactor are suitable in electrical system with AC 50/60HZ,rated operational voltage up to 660V,in ac-3 usage,rated operational voltage up to 380V,rated operational current up to 630A to make or break remote motors or system.The form electromagnetic starters with suitable thermal over load or phase-failure.The are mode according to IEC947.BS5424 & VDE0660.The contactor is a straight motion mechanism having double-breaking contacts.The auxiliary contacts are arranged 2NO.2NC at most,It is employed the flexible locking connection be-tween the contact support and core,three are no arcisolated panel in the le≥32A contactors,there are moulded arc-chute with arcisolated panel,because all contacts are made of high nonfusibility and against corrosion silver alloy.All series products can be mounted by screws,le≤32A contactor also by installation rail. 


SPECIFICATIONS 

Type

3TF-50

3TF-51

3TF-52

3TF-53

Rated insulation voltage

1000

1000

1000

1000

Rated operational current(380V)

AC-3

110

140

170

205

AC-4

54

68

75

96

 

Rated outputs of three-phase motors at 50Hz

AC-3

AC-4

230/220V

37

43

55

64

400/380V

55

75

90

110

500V

76

98

118

145

690/660V

100

100

156

156

1000V

65

65

90

90

400/380V

28.4/27

36/35

40/38

52/50

690/660V

49/46.9

63/60

69/66

90/86

(×106)Mechanical endurance

10

10

10

10

(×106)Mechanical endurance

AC-3

1.2

1.2

1.2

1.2

AC-4

0.2

0.2

0.2

0.2

Switchina frequency

AC-3

1000

750

750

750

AC-4

300

200

200

200

Coil voltage lolerance

(0.8~1.1)Us

Power consumption of coil(50Hz)

Closed

39

39

58

58

P.f.

0.24

0.24

0.26

0.26

Closing

550

550

910

910

P.f.

0.45

0.45

0.38

0.38

Convention althermal current

160

160

210

210


Conventional thermal current of auxiliary contacts

10

10

10

10

㏑ated operational current of auxiliary contacts

AC-15
380/220V

4/6

4/6

4/6

4/6

Weight

AC3.3/3.5

AC3.3/3.5

AC0.48/5.0

AC0.48/5.0



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