• Customized DONGNAN Micro Switch MS3 for Air Conditioner
  • Customized DONGNAN Micro Switch MS3 for Air Conditioner

Customized DONGNAN Micro Switch MS3 for Air Conditioner


Model: MS3


MS3 micro switch uses all-silver contacts, which improves safety and increases service life.






Customized DONGNAN Micro Switch MS3 for Air Conditioner
MS3 micro switch is a customized switch specially designed for water level control. It has excellent protection function and can ensure the stability of switch operation. And it has all-silver contacts, which greatly improves the safety of the switch. MS3 micro switch can be used in dust-proof devices in air conditioners. Air conditioners are generally located in dusty environments. In order to avoid dust damage to the air conditioner, when the air conditioner is turned on, the micro switch senses that the power is on and turns on the dust-proof device.                                                           
Item Value
Operating speed 0.1mm-1m/s (no lever)
Operating frequency Mechanical 60 cycles/min; electrical 25 cycles/min
Insulation resistance ≥100MΩ(500VDC)
Contact resistance ≤50mΩ
(Test voltage) Between not continuous terminals  of  the same  polarity AC1000V , 50/60Hz , 1min
(Test voltage) Between current-carrying metal parts and ground(case),
and between each terminal and non-current -carrying metal parts.
AC2000V , 50/60Hz , 1min
Vibration resistance 10-55Hz , 1.5mm Double amplitude                                                       
Shock resistance endurance : 1000m/s2 max
Wrong action : 300m/s2 max
Electric shock proof protection grade II class
Degree protection provided by enclosure IEC IP60(specific specification)
Life Mechanical≥500,000 cycles
 Electrical ≥ 50,000 cycles
Safety approvals UL ,CUL,ENEC, DEMKO , EK , CQC

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