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KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series
KW4A Micro Switch Series

KW4A Micro Switch Series

  • Operating Speed: 0.1mm~1m/s (Related with actuator forms)

  • Operating Frequency: Mechanical 60 cycles/min; Electrical 25 cycles/min

  • Insulation Resistance: ≥100mΩ(500VDC)

  • Mechanical Life: ≥1,000,000 cycles

  • Electrical Life: ≥10,000 cycles

  • Weight: Approx.1.6g (No lever)

  • Safely Approvals: Approx.1.6g (No lever)

  • Application: Home appliance, electronic equipment, automatic machine, communication equipment, car electron, apparatus and instrument ect.

Note: To learn more parameters, please go to the details area below to download the parameter document.

KC

KC

CE

CE

ENEC

ENEC

ROSH

ROHS

UL

UL

TUV

TUV

Product Details

Safe, reliable basic switch

  • 1. Nice appearance, tight configuration. Characteristics: small contact clearance, quick action, high sensitivity and small operating travel.
  • 2. Long life, high reliability.
  • 3. A variety of contact terminals.
  • 4. A variety of levers.
  • 5. Adopt thermosetting plastic or thermoplastic case.
  • 6. Widely used in home appliance, electronic equipment, automatic machine, communication equipment, car electron, apparatus and instrument ect.

Internal configuration drawing

  • 1. Case
  • 2. Moving piece
  • 3. Cover
  • 4. Support
  • 5. Rivet
  • 6. NO terminal
  • 7. NC terminal
  • 8. Contact
  • 9. Spring sheet
  • 10. Plunger
  • 11. Lever

Technical characteristics

ItemValue
Operating Speed0.1mm~1m/s (Related with actuator forms)
Operating FrequencyMechanical 60 cycles/min; Electrical 25 cycles/min
Insulation Resistance≥100mΩ(500VDC)
Contact ResistanceOF>0.5N: ≤30mΩ (see note)
OF≤0.5N: ≤50mΩ (see note)
Test Voltage - Between terminals of the same polarityAC1000V, 50/60Hz, 1min
Test Voltage - Between current-carrying metal parts and ground(case), and between terminal and non-current-carrying metal partsAC1500V, 50/60Hz, 1min
Vibration Resistance10~55Hz, 1.5mm double amplitude
Shock ResistanceDestruction:
OF>0.5N: 1000m/s² (approx.100G) max
OF≤0.5N: 500m/s² (approx.50G) max

Malfunction:
OF>0.5N: 300m/s² (approx.30G) max
OF≤0.5N: 200m/s² (approx.20G) max
LifeMechanical≥1,000,000 cycles
Electrical≥10,000 cycles
WeightApprox.1.6g (No lever)
Safely ApprocalsUL, CUL, VDE, TUV, ENEC, DEMKO, CE, EK, CQC
*Note: Refers to the operating force of no lever.

Various model combinations

KW4A-Z0

KW4A-Z1

KW4A-Z3

KW4A-Z2

KW4A-Z6

KW4A-Z5

KW4A-ZE

KW4A-ZQ

KW4A-Z6B

Circuit illustration

Plunger spec illustration

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