LW31 Series 25A 4 Pole 7 Position Rotary Cam Switch Changeover Switch for Various Applications
LW31 series Rotary Changeover Switch
LW31 series Rotary Changeover Switch 20A,25A,32A,50A,75A
LW31 series Rotary Changeover Switches applied to Complete electrical switchgear and Three-phase asynchronous motor load start shift steering; For using as main circuit and auxiliary circuit conversion. It’s a good substitution for other cam switches
Advantage:
- LW31 series Rotary Changeover Switches have the characteristics of small size, multi-function, compact structure, exquisite material selection, good insulation, flexible conversion operation, safety and reliability, and novel appearance.
- LW31 series Rotary Changeover Switches have many different types of operation handle to choose by customer(“R”,”I” types)
- LW31 series Rotary Changeover Switches can produce transform angle: 30°/45°/60°/90°
Technical parameters
|
Description
|
LW31-20
|
LW31-25
|
LW31-32
|
LW31-50
|
LW31-75
|
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| Rated thermal currentITH |
A
|
20
|
25
|
32
|
50
|
75
|
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| 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
|
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| AC-22A |
A
|
16
|
20
|
32
|
40
|
63
|
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| DC-20 |
A
|
20
|
25 |
|
32 |
|
50 |
|
75 |
|
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| power |
P
|
|
|
|
|
|
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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
|
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| AC-4 |
KW
|
2.2 |
3
|
2.2 | 4 | 4 |
|
3 | 5.5 | 5.5 |
|
5.5 | 7.5 | 9 |
|
7.5 | 11 | 15 |
|
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| DC-23 |
KW
|
0.77 | 1.2 |
|
2 | 2.2 |
|
2 | 2.2 |
|
3 | 6 |
|
4 | 8 |
|
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Mechaical life
Mechanical life without load:0.3×106 times,operation frequency is 120 times/h.
Mechanical life with load:0.6×104 times operation frequency is 120 times/h.
Dimensions and installation dimensions:
| 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 |
Normal working conditions:
1. Working temperature: -25°C~+40°C;the average temperature mustn’t be pass 35°C
2. Working height: ≤2,000m
3. Relative humidity: ≤50% with highest temperature +40°C,but allow higher humidity with low temperature less than 40°C.(eg. humidity 90%----teperature20°C)
Classification
1. Classified by utilization, control and load switch.
Motor switch Control switch
2. Classified by Applications
Complete electrical switchgear;Three-phase asynchronous motor load start shift steering;Used as main circuit and auxiliary circuit conversion
Related Products shown:
LW31 series Rotary Changeover Switch 20A-75A (4 Layers)
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