◆Introduction  LW31 series rotary switches applied to switchgear and control of electric mkotors as well as to change over of electric circuitss,it’s a good substitution for other cam switches. 
◆Technical parameters
| 
 Description  | 
 LW31-20  | 
 LW31-25  | 
 LW31-32  | 
 LW31-50  | 
 LW31-75  | 
| Rated thermal currentITH | 
 A  | 
 20  | 
 25  | 
 32  | 
 50  | 
 75  | 
| Rated working voltageUe | 
 V  | 
110 | 
220 | 
 440  | 
110 | 
220 | 
440 | 
500 | 
 690  | 
110 | 
220 | 
440  | 
500 | 
 690  | 
110 | 
220 | 
440 | 
500 | 
 690  | 
110 | 
220 | 
440 | 
500 | 
 690  | 
| Rated working currentLe | 
 | 
 | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
  | 
  | 
 | 
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  | 
  | 
 | 
| AC-21A | 
 A  | 
  | 
  | 
 20  | 
  | 
  | 
  | 
  | 
 25  | 
  | 
  | 
  | 
  | 
 32  | 
  | 
  | 
  | 
  | 
 50  | 
  | 
  | 
  | 
  | 
 70  | 
| AC-22A | 
 A  | 
  | 
  | 
 16  | 
  | 
  | 
  | 
  | 
 20  | 
  | 
  | 
  | 
  | 
 32  | 
  | 
  | 
  | 
  | 
 40  | 
  | 
  | 
  | 
  | 
 63  | 
| DC-20 | 
 A  | 
 20  | 
  | 
25 | 
  | 
  | 
 | 
  | 
32 | 
  | 
  | 
 | 
  | 
50 | 
  | 
  | 
 | 
  | 
75 | 
  | 
  | 
 | 
| power | 
 P  | 
  | 
  | 
 | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
  | 
  | 
 | 
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  | 
  | 
  | 
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  | 
 | 
| AC-23A | 
 KW  | 
  | 
5 | 
 7.5  | 
  | 
7.5 | 
11 | 
  | 
 15  | 
  | 
11 | 
18.5 | 
  | 
 22  | 
  | 
15 | 
22 | 
  | 
 30  | 
  | 
18.5 | 
30 | 
  | 
 37  | 
| AC-3 | 
 KW  | 
  | 
4 | 
 5.5  | 
  | 
5.5 | 
7.5 | 
  | 
 11  | 
  | 
7.5  | 
15 | 
  | 
 18.5  | 
  | 
11 | 
18.5 | 
  | 
 22  | 
  | 
15 | 
22 | 
  | 
 30  | 
| AC-4 | 
 KW  | 
  | 
2.2 | 
 3  | 
  | 
2.2 | 
4 | 
4 | 
 | 
  | 
3 | 
5.5 | 
5.5 | 
 | 
  | 
5.5 | 
7.5 | 
9 | 
 | 
  | 
7.5 | 
11 | 
15 | 
 | 
| DC-23 | 
 KW  | 
0.77 | 
1.2 | 
 | 
2 | 
2.2 | 
  | 
  | 
 | 
2 | 
2.2 | 
  | 
  | 
 | 
3 | 
6 | 
  | 
  | 
 | 
4 | 
8 | 
  | 
  | 
 | 
Mechaical life Mechanical life without load:0.3×10
6 times,operation frequency is 120 times/h.
Mechanical life with load:0.6×10
4 times operation frequency is 120 times/h. 
◆Dimensions and installation 
| 
 Description  | 
 Dimensions(mm)
   | 
 Installation(mm)
   | 
| A | 
C | 
H | 
L | 
E | 
D1 | 
D2 | 
S | 
F | 
G | 
D3 | 
T | 
| 
 LW31-20  | 
□54 | 
Φ44 | 
38 | 
 25+12n  | 
32 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
35 | 
Φ45 | 
Φ4.5 | 
 6   | 
| 
 LW31-20  | 
□72 | 
Φ44 | 
38 | 
 25+12n   | 
32 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
58 | 
Φ45 | 
Φ4.5 | 
 6   | 
| 
 LW31-25  | 
□72 | 
Φ59 | 
36 | 
 25+13n   | 
33 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
58 | 
Φ64 | 
Φ4.5 | 
 6   | 
| 
 LW31-25  | 
□105 | 
Φ59 | 
53 | 
 23+13n   | 
33 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
85 | 
Φ64 | 
Φ4.5 | 
 6   | 
| 
 LW31-32  | 
□72 | 
Φ59 | 
36 | 
 23+18n   | 
33 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
58 | 
Φ64 | 
Φ4.5 | 
 6   | 
| 
 LW31-32  | 
□105 | 
Φ59 | 
53 | 
 23+18n   | 
33 | 
Φ9.5 | 
Φ3.2 | 
1.5 | 
85 | 
Φ64 | 
Φ4.5 | 
 6   | 
| 
 LW31-50  | 
□105 | 
Φ80 | 
53 | 
 34+18n   | 
46 | 
Φ13 | 
Φ5.3 | 
3 | 
85 | 
Φ90 | 
Φ5.5 | 
 8   | 
| 
 LW31-75  | 
□105 | 
Φ80 | 
53 | 
 34+27n   | 
46 | 
Φ13 | 
Φ5.3 | 
3 | 
85 | 
Φ90 | 
Φ5.5  | 
 8   |