position：product--wh138型
 
wh138 series of footstalk rotating carbon film potentiometer

    no.1
overall overall dimension installation dimension
wh138n1a-□a-
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    no.2
overall overall dimension installation dimension
wh138n1b-□a-
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    no.3
overall overall dimension installation dimension
wh138n1d-□a-
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    no.4
overall overall dimension installation dimension
wh138n1a-k□a-
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    no.5
overall overall dimension installation dimension
wh138n1b-k□a-
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    no.6
overall overall dimension installation dimension
wh138n1d-k□a-
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    no.7
overall overall dimension installation dimension
wh138n1d-k□s1-
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total rotational 300°±5° nominal power a:0.25w; other than0.5w
rotational torque 2～20mn.m max operating volerance ac160v
rotationa stopper strength 600mn.m terminal power r≥250kω            0.1%r max
250kω＞r＞10kω     20ω max
10kω≥r            10ω max
   
swich operating angle 50°±10° slide noise ≤47mv
total resistance range 500ω～1mω insulation resistance more than 100mω at dc250v
total resistance tolerance ±20%(more than 1mω±30%) withstand voltage 开关 ac1000v/1 minute 电阻 ac600v/1 minute
resistance taper a、b、c switch operating voltage、carrent dc250v    1a    dc250v    3a
switch connect resistance less than 30mω rotational life 10,000 cycles
 
 
 

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design :lu-ding