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3 Phase Electrical Changeover Switch 50A 7 Position On - Off Combination

WENZHOU MEIHENG ELECTRIC CO.,LTD
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Address: Xiangyang Industrial Zone,Liushi Town,Yueqing City,Zhejiang Province,325604,P.R.China

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WENZHOU MEIHENG ELECTRIC CO.,LTD

3 Phase Electrical Changeover Switch 50A 7 Position On - Off Combination

Country/Region china
City & Province zhejiang
Categories Other Switches
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Product Details

LW31 series Rotary Changeover Switch Cam Switch
 
Description:
 
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
 
General Features:
 
1. Wide range of function for switching, it has 20A,25A,32A,50A,75A
2. Capability for switching of resistive, or inductive, or mixed loads.
3. The most economical way for switching electrical loads.
4. Made of the best materials with high mechanical, electrical and thermal resistance.
5. Double-break bimetallic contacts made of silver alloy and Copper.
6. Terminals with screws provided with cable clamp.
7. Fast and easy installation and wring.
8. Capability to produce special Cam Switches based on customer requirements.
 
Advantage:

  1. 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.
  2. LW31 series Rotary Changeover Switches have many different types of operation handle to choose by customer(“R”,”I” types)
  3. 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
Rated thermal currentITH
A
20
25
32
50
75
Rated working voltageUe
V
110220
440
110220440500
690
110220440500
690
110220440500
690
110220440500
690
Rated working currentLe
 
 
    
 
    
 
    
 
    
 
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
  
 
    
 
    
 
    
 
    
 
AC-23A
KW
 5
7.5
 7.511 
15
 1118.5 
22
 1522 
30
 18.530 
37
AC-3
KW
 4
5.5
 5.57.5 
11
 7.515 
18.5
 1118.5 
22
 1522 
30
AC-4
KW
 2.2
3
 2.244
 
 35.55.5
 
 5.57.59
 
 7.51115
 
DC-23
KW
0.771.2
 
22.2  
 
22.2  
 
36  
 
48  
 


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.
 

 
 
 

DescriptionDimensions(mm)Installation(mm)
ACHLED1D2SFGD3T
LW31-20□54Φ443825+12n32Φ9.5Φ3.21.535Φ45Φ4.56
LW31-20□72Φ443825+12n32Φ9.5Φ3.21.558Φ45Φ4.56
LW31-25□72Φ593625+13n33Φ9.5Φ3.21.558Φ64Φ4.56
LW31-25□105Φ595323+13n33Φ9.5Φ3.21.585Φ64Φ4.56
LW31-32□72Φ593623+18n33Φ9.5Φ3.21.558Φ64Φ4.56
LW31-32□105Φ595323+18n33Φ9.5Φ3.21.585Φ64Φ4.56
LW31-50□105Φ805334+18n46Φ13Φ5.3385Φ90Φ5.58
LW31-75□105Φ805334+27n46Φ13Φ5.3385Φ90Φ5.58

 
 

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

Further information:

 

1. Plastics materials: all raw materials are brand-new and second-hand materials are forbidden. Furthermore some of them are supplied by super branding companies like DSM, Mitsubishi.

 

2. There is just one level of quality as A in MEIHENG and we are aim to provide the excellent articles to our clients and help them gain more market shares.

 

3. ODM: we are providing ODM services to the super companies (more than 15) who are top-10 electrical industrial companies in their country. Just show us your ideas and we will present a solution.

 

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