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Key-type Selector Switch (Detachable) (Cylindrical 16-dia.)


Cylindrical (16 mm dia.), Rectangular, IP65 oil-resistant type, 3 notches, Key release position: Center, DPDT, Solder terminal, Reset system: Manual

Type Key-type selector switch
Shape Cylindrical type (16 mm dia.)
Operating portion Rectangular
Number of notch 3 notches
Terminal Solder terminal

Item list of A165K

  • Ratings
TypeKey-type selector switch
ShapeCylindrical type (16 mm dia.)
Number of notch3 notches
Operating portionShape of operating portionRectangular
Key release positionCenter
Reset methodManual
LoadGeneral load/Micro load
Minimum applicable load1 mA at 5 VDC
Contact ratingContact formDPDT
Ratings (AC)Resistive load: 5 A at 125 VAC/3 A at 250 VAC
Ratings (DC)Resistive load: 3 A at 30 VDC
Ratings explanationConditions: No vibration and no shock, Temperature 20±2 ℃, Operating frequency 20 operations/min
Terminal specificationsSolder terminal
Permissible operating frequencyElectrical: Max. 10 operations / 1 minute
Mechanical: Max. 20 operations / 1 minute
Insulation resistance100 MΩ min. (at 500 VDC)
Dielectric strengthBetween each terminal of the same polarities: 1000 VAC 50/60 Hz 1 min
Between each terminal of the different polarities: 2000 VAC 50/60 Hz 1 min
Between each terminaland ground: 2000 VAC 50/60 Hz 1 min
Vibration resistanceMalfunction: 10 to 55 Hz, 1.5 mm double amplitude (malfunction: 1 ms max.)
Shock resistanceDestruction: 500 m/s**2 max.
Malfunction: 150 m/s**2 max. (malfunction time is 1 ms max.)
Ambient temperature rangeOperating: -10 to 55℃ (with no freezing or condensation)
Storage: -25 to 65℃ (with no freezing or condensation)
Ambient humidity rangeOperating: 35 to 85%
Degree of protectionIP65 oil-resistant type
Classification of protection against electric shockClass II
PTI (Tracking characteristic)175
Pollution degree3 (IEC60947-5-1)
WeightApprox. 26.5 g (With 1 key)
Operating characteristics
Operating Force (OF)0.1 N.m max.
Set Position (SP)45 +10, -0 °
  • Dimensions

  • Mounting hole dimensions

  • Applicable load diagram


Key-type Selector Switch (Detachable) (Cylindrical 16-dia.)