Product Description
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 |