WENZHOU SANTUO ELECTRICAL CO.,LTD.
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GENERAL
ST2 Series AC Contactor is suitable for using in the circuits the rated voltage up to 660V AC 50Hz or 60Hz, rated current up to 95A, for making & breaking, frequently starting & controlling the AC motor. Combined with the auxiliary contact block, timer delay & machine- interlocking device etc, it becomes the delay contactor, mechanical interlocking contactor, star-delta starter. With the thermal relay, it is combined into the electromagnetic starter. The Contactor is produced according to IEC 60947-1.
Specifications
| Type | ST2-09 | ST2-12 | ST2-18 | ST2-25 | ST2-32 | ST2-40 | ST2-50 | ST2-65 | ST2-80 | ST2-95 | |
| Rated working current (A) | AC3 | 9 | 12 | 18 | 25 | 32 | 40 | 50 | 65 | 80 | 95 |
| AC4 | 3.5 | 5 | 7.7 | 8.5 | 12 | 18.5 | 24 | 28 | 37 | 44 | |
| Standard power ratingsof 3-phase motors 50/60Hz in category AC-3 | 220/230V | 2.2 | 3 | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 25 |
| 380/400V | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 | 45 | |
| 415V | 4 | 5.5 | 9 | 11 | 15 | 22 | 25 | 37 | 45 | 45 | |
| 500V | 5.5 | 7.5 | 10 | 15 | 18.5 | 22 | 30 | 37 | 55 | 55 | |
| 660/690V | 5.5 | 7.5 | 10 | 15 | 18.5 | 30 | 33 | 37 | 45 | 55 | |
| Rated heat current (A) | 20 | 20 | 32 | 40 | 50 | 60 | 80 | 80 | 125 | 125 | |
| Electrical life | AC3 (x104) | 100 | 100 | 100 | 100 | 80 | 80 | 60 | 60 | 60 | 60 |
| AC4 (x104) | 20 | 20 | 20 | 20 | 20 | 15 | 15 | 15 | 10 | 10 | |
| Mechanical life (x104) | 1000 | 1000 | 1000 | 1000 | 800 | 800 | 800 | 800 | 600 | 600 | |
| Number of the contacts | 3P+NO | 3P+NC+NO | |||||||||
| 3P+NC | |||||||||||
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WENZHOU SANTUO ELECTRICAL CO,LTD.
is one of manufactories that specialize in manufacturing AC CONTACTOR, Thermal Relay and Circuit Breaker, and is located in Liushi.Wenzhou.China
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