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EHAKL Electric Co.,Ltd 11yr. |
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| Main Products: |
Voltage regulator，transformer，switching power supply，circuit breaker，contactor，relay，pushbutton，switch，distribution box |
| Contacts: | liuhuanChat |
| Mobile: | 86-18757872323 |
| WhatsApp: | 008618757872323 |
| E-mail: | kevinliu@ehakl.com |
| WeChat: | 690658306 |
| Address: | 14015 , 12 Street, 2 F, 28 Gate, International Trade Mart (District 2). |
| Address: | near National Highway 104, Liushi Town, Yueqing City, Zhejiang Province |
3TB Contactor 3TB42/3TB43
ST-3TB series AC contactor is suitable for frequency 50Hz/60Hz, rated voltage up to 660VAC and rated current up to 630A. it is used for making/breaking electric circuit at a long distance & for frequent starting/stopping & controlling AC motors. It is used in combination with thermal relay to compose a magnetic motor starter. The products comply with IEC60947-4-1 standard.
Technical Data
| Type | 3TB-40 | 3TB-41 | 3TB-42 | 3TB-43 | 3TB-44 | ||
| Rated insulation voltage | 660 | 660 | 660 | 660 | 660 | ||
| Rated operational current(380V) | AC-3 | 9 | 12 | 16 | 22 | 32 | |
| AC-4 | 3.3 | 4.3 | 7.7 | 8.5 | 15.6 | ||
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Rated outputs of three-phase motors at 50Hz |
AC-3 | 230/220V | 2.4 | 3.3 | 4 | 6.1 | 8.5 |
| 400/380V | 4 | 5. 5 | 7.5 | 11 | 15 | ||
| 500V | 5.5 | 7 .5 | 10 | 11 | 21 | ||
| 690/660V | 5.5 | 7.5 | 11 | 11 | 23 | ||
| 1000V | - | - | - | - | - | ||
| AC-4 | 400/380V | 1.4 | 1.9 | 3.5 | 4 | 7.5 | |
| 690/660V | 2.4 | 3.3 | 6 | 6.6 | 13 | ||
| (×106)Mechanical endurance | 10 | 10 | 10 | 10 | 10 | ||
| Switchina frequency | AC-3 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | |
| AC-4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||
| (×106)Mechanical endurance | AC-3 | 1000 | 1000 | 750 | 750 | 750 | |
| AC-4 | 250 | 250 | 250 | 250 | 250 | ||
| Coil voltage lolerance | (0.8~1.1)Us | ||||||
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Power consumption of coil (50Hz) |
Closed | 10 | 10 | 10 | 10 | 10 | |
| Cos | 0.29 | 0.29 | 0.29 | 0.29 | 0.29 | ||
| Closing | 68 | 68 | 68 | 68 | 68 | ||
| Cos | 0.82 | 0.82 | 0.82 | 0.82 | 0.82 | ||
| Convention althermal current | 20 | 20 | 30 | 30 | 45 | ||
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Conventional thermal current of auxiliary contacts |
10 | 10 | 10 | 10 | 10 | ||
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Rated operational current of auxiliary contacts |
AC-15 380/220V |
6/10 | 6/10 | 6/10 | 6/10 | 4/6 | |
| Weight | 0.43 | 0.43 | 0.49 | 0.49 | 0.7 | ||
| The number of AC coil voltage | Coil for 50Hz AC | Coil for 50Hz/60Hz AC | |||||
| 24 | BO | 24 | C1 | ||||
| 42 | DO | 42 | D1 | ||||
| 110 | FO | 110 | G1 | ||||
| 220 | MO | 220 | P1 | ||||
| 240 | UO | 240 | R1 | ||||
| 380 | QO | - | - | ||||
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