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


Key-type selector switch, Rectangular, 2 notches, Key release position Left, DPDT (Solder terminal)

Type Key-type selector switch
Shape Cylindrical type (16 mm dia.)
Operating portion Rectangular
Number of notch 2 notches
Terminal Solder terminal

Item list of A165K

  • Ratings
TypeKey-type selector switch
ShapeCylindrical type (16 mm dia.)
Number of notch2 notches
Operating portionShape of operating portionRectangular
Key release positionLeft side
Reset methodLeft automatic
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/s2 max.
Malfunction: 150 m/s2 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)90 ±5 °
  • Dimensions

  • Mounting hole dimensions

  • Applicable load diagram


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