KDHC Series 40A Rotary Cam Switch 3 Pole 3 Position for Welding Machines for Various Applications
LW26 series 25A Rotary Cam Switch for welding machine
KDHC series Rotary Changeover Switch is suitable for the circuits of AC 50Hz,rated voltage 440V and below,DC Voltage 240V and below,Agreed fever current to the electrical 63A circuits,to manually make and break the circuit non-frequency as transfering or control,it is mainly used in NBC-200,250,350,400,500,630 and ect CO2 gas Welding machince,Inverter arc welding machine,and air plasma cutting machine to adjust the current or voltage,also used to transfer the circuit of electric equipment.
Technical parameters:
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Description
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KDHc-20
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KDHc-25
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KDHc-32
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KDHc-40
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KDHc-63
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||
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Rated thermal current
|
ITH |
A
|
20
|
25
|
32
|
40
|
63
|
|
Rated workig voltage
|
Ue |
V
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240/440
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240/440
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240/440
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240/440
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240/440
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|
Rated working current
|
Le | ||||||
|
AC-21A
|
A
|
20
|
25
|
32
|
40
|
63
|
|
|
Operation
|
|||||||
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non-load
|
8500
|
8500
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8500
|
8500
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8500
|
||
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load
|
1500
|
1500
|
1500
|
1500
|
1500
|
||
| Total | 10000 | 10000 | 10000 | 10000 | 10000 | ||
|
frequency
|
120
|
120
|
120
|
120
|
120
|
||
Dimensions and installation dimensions:
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 operation limited movement
Spring return Limited movement with spring return
3. Classified by contact system switch with limited movement
has 1~12 poles (63A only have 8 poles)
Switch with spring return has 1~3 poles
Motor control switch has 1~6poles
4. Classified by panel
Square panel, rectangular panel, circular panel (only 20A)
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