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| LW28(LW39、LW26)Rotary Switch series |
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| product brief |
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| LW28LW28 Series Universal switch mainly for the exchange of 50Hz, rated voltage of 440V and below.Sunshine following DC voltage, rated current of the electrical circuits to 63A,not connected or breaking frequently for manual control and conversion circuits for use.and also the direct control of three-phase asynchronous motor circuit as a master control and measurement purposes.Products are extensively used, instead of switching between different formal conversion, as the official switch control circuits, switching test equipment.motor control switches, and master control switches, and other switch welding machine. |
| Meet standards |
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Circuit switch use, and directly controlling the main switch with GB14048.3-1993.
master control switch with GB14048.5-1993 use. |
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| Normal working conditions |
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1. Ambient air temperature does not exceed +40 °, and the average temperature does not exceed its 24 C +35 ° C;2. ambient air temperature does not exceed the limit of -5 ° C; 3. installation location at an altitude of less than 2000m;4. maximum temperature of +40 ° C, the air temperature does not exceed 50% relative.at a lower temperature can allow a higher relative humidity.For example, at 20 ° C up to 90%. Dewing due to temperature changes occasional special measures. |
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| Product model and its implications |
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| 4.1 Use master control switchSwitch的Models Meaning |
4.2 The main circuit controlling the conversion Switch Models Meaning |
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Note : Switch conversion circuit used commonly used 60 ° change.
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Note : The code change angle of 30 ° (3), 45 ° (4) at 60 ° (6) ,14.0 ° (9);Since the rehabilitation of 60 ° 30 ° position (36), 45 ° 90 ° position since Minute (49). |
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| 4.3 Use master control switchSwitch的Models Meaning |
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Note : The direct conversion Switch control motors commonly used 60 ° change. |
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| Classification |
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5.1 By Uses pm main circuit switch with a switch Switch.Motor control using direct conversion Switch and master control and measurement conversion Switch.Have an operationLocation By Mode of 5.2.Since REPLICA and positioning Since REPLICA.Contact System by 5.3 hours, a 1-3 Switch Location conversion FestivalSwitch direct control of the main electrical switch using a 1-3 FestivalSwitch direct control of the main electrical switch using a 1-6 festival.5.4 hours at 30 ° angles by four 5,60 ° ° and 90 °.Face Shape Square Face by 5.5 score.Rectangular face and Round Face (20A has only).Knob Types down by 5.6 R-, I-, F-, B-, S-, L-and P-type and K-type, a total of eight.5.7 Operating Position By Mode of operation and see if the composition shown in Table. |
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| Main technical parameters |
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The following table shows the conversion of the Main technical parameters Switch。
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Models |
lth
A |
Ui
V |
Ue
V |
AC-21A |
AC-22A |
AC-23A |
AC-2 |
AC-3 |
AC-4 |
AC-15 |
DC-13 |
|
le
A |
le
A |
le
A |
P
kW |
le
A |
P
kW |
le
A |
P
kW |
le
A |
P
kW |
le
A |
le
A |
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LW28-20 |
20 |
660 |
440 |
20 |
20 |
15 |
7.5 |
15 |
7.5 |
11 |
5.5 |
3.5 |
1.5 |
4 |
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240 |
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5 |
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120 |
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5 |
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LW28-25 |
25 |
440 |
25 |
25 |
22 |
11 |
22 |
11 |
15 |
7.5 |
6.5 |
3 |
5 |
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240 |
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8 |
1.5 |
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120 |
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9 |
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LW28-32 |
32 |
440 |
32 |
32 |
30 |
15 |
30 |
15 |
22 |
11 |
11 |
5.5 |
6 |
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240 |
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14 |
11 |
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120 |
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25 |
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LW28-63 |
63 |
440 |
63 |
63 |
57 |
30 |
57 |
30 |
36 |
18.5 |
15 |
7.5 |
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120 |
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55 |
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LW28-125 |
125 |
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125 |
125 |
125 |
100 |
45 |
100 |
45 |
50 |
22 |
18 |
12 |
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90 |
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LW28-160 |
160 |
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160 |
160 |
160 |
115 |
57 |
115 |
57 |
65 |
33 |
25 |
15 |
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110 |
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Operation Cycle |
Unladen |
8500 |
Life(Meeting) |
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20×10 4 |
6×10 4 |
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Load |
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Mechanical life (Meeting) |
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Total |
1000 |
60×10 4 |
The following table shows the relevant Size Map1
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Models |
Face Shape |
Size（mm）
A B C L |
A |
b |
d1 |
d2 |
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LW28-20 |
M1Square |
48 |
48 |
40 |
22+9.6n |
36 |
36 |
φ8.5 |
φ4.5 |
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M1Rectangular |
48 |
60 |
43 |
22+9.6n |
36 |
36 |
φ8.5 |
φ4.5 |
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M2Square |
64 |
64 |
43 |
25+9.6n |
4 |
4 |
φ10 |
φφ4.5 |
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M2Rectangular |
64 |
80 |
43 |
25+9.6n |
48 |
48 |
φ10 |
φ4.5 |
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LW28-25 |
M1Square |
48 |
48 |
45.2 |
23+12.8n |
36 |
36 |
φ8.5 |
φ4.5 |
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M1Rectangular |
48 |
60 |
45.2 |
23+12.8n |
36 |
36 |
φ8.5 |
φ4.5 |
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M2Square |
64 |
64 |
45.2 |
26.5+12.8n |
48 |
48 |
φ10 |
φ4.5 |
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M2Rectangular |
64 |
80 |
45.2 |
26.5+12.8n |
48 |
48 |
φ10 |
φ4.5 |
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LW28-32 |
M2Square |
64 |
64 |
58 |
29.2+12.8n |
48 |
48 |
φ10 |
φ4.5 |
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M2Rectangular |
64 |
80 |
58 |
29.2+12.8n |
48 |
48 |
φ10 |
φ4.5 |
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LW28-63 |
M2Square |
64 |
64 |
66 |
29.2+21.5n |
48 |
48 |
φ10 |
φ4.5 |
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M2Rectangular |
64 |
80 |
66 |
29.2+21.5n |
48 |
48 |
φ10 |
φ4.5 |
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M3Square |
88 |
88 |
66 |
29.2+21.5n |
68 |
68 |
φ10 |
φ4.5 |
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M3Rectangular |
88 |
107 |
66 |
29.2+21.5n |
68 |
68 |
φ10 |
φ4.5 |
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LW28-125 |
M3Square |
88 |
88 |
84 |
35+26.5n |
68 |
68 |
φ13 |
φ6 |
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M3Rectangular |
88 |
107 |
84 |
35+26.5n |
68 |
68 |
φ13 |
φ6 |
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LW28-160 |
M3Square |
88 |
88 |
88 |
35+32.5n |
68 |
68 |
φ13 |
φ6 |
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M3Rectangular |
88 |
107 |
88 |
35+32.5n |
68 |
68 |
φ13 |
φ6 | |
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| The dimension and Installation size |
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| 7.1The dimension |
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| The dimensionChart1 and Table3 |
Round Face |
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