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Pushbutton Switch (Cylindrical 22/25-dia.)


Cylindrical (22/25 mm dia.), Round half guard, LED (with built-in reduced-voltage lighting function), Yellow, IP65, Lamp:110 VAC Yellow, Alternate, DPST-NC, Screw terminal (M3.5)

Type Pushbutton Switch (Cylindrical 22/25-dia.)
Shape Cylindrical type (22/25 mm dia.)
Operating portion Round half guard
Lighted method Lighted (LED (with built-in reduced-voltage lighting function))
Terminal Screw terminal (M3.5)

Item list of A22

  • Ratings
TypePushbutton Switch (Cylindrical 22/25-dia.)
ShapeCylindrical type (22/25 mm dia.)
Operating portionShape of operating portionRound half guard
Color of operating portionYellow
Operating functionAlternate
LoadFor General load
Minimum applicable load10 mA at 5 VDC
LampMethod of lamp unitLED (with built-in reduced-voltage lighting function)
Lamp colorYellow
Rated voltage110 VAC
Operating voltage100 VAC (95 to 115 VAC)
Rated current8 mA
Contact ratingContact formDPST-NC
Rated through current10 A
Ratings (AC)Resistive load: 10 A at 24 VAC/1 A at 110 VAC/6 A at 220 VAC/3 A at 380 VAC/2 A at 440 VAC
Inductive load: 10 A at 24 VAC/5 A at 110 VAC/3 A at 220 VAC/2 A at 380 VAC/1 A at 440 VAC
Ratings (DC)Resistive load: 10 A at 24 VDC/2 A at 110 VDC/0.6 A at 220 VDC/0.2 A at 380 VDC
Inductive load: 1.5 A at 24 VDC/0.5 A at 110 VDC/0.2 A at 220 VDC/0.1 A at 380 VDC
Ratings explanationConditions: Temperature 20±2 ℃, Ambient humidity 65±5% RH, Operating frequency 20 operations/min
Terminal specificationsScrew terminal (M3.5)
Permissible operating frequencyElectrical: 30 operations / 1 minute
Insulation resistance100 MΩ min. (at 500 VDC)
Dielectric strengthBetween each terminal of the same polarities: 2500 VAC 50/60 Hz 1 min
Between each terminaland ground: 2500 VAC 50/60 Hz 1 min
Vibration resistanceMalfunction: 10 to 55 Hz, 1.5 mm double amplitude (malfunction: 1 ms max.)
Shock resistanceDestruction: 1,000 m/s2 max.
Malfunction: 600 m/s2 max. (malfunction time is 1 ms max.)
Ambient temperature rangeOperating: -20 to 55 ℃ (with no freezing or condensation)
Storage: -40 to 70 ℃ (with no freezing or condensation)
Ambient humidity rangeOperating: 35 to 85% RH
Degree of protectionIP65
Classification of protection against electric shockClass II
PTI (Tracking characteristic)175
Pollution degree3 (IEC60947-5-1)
  • Dimensions

  • Mounting hole dimensions

  • Applicable load diagram


Pushbutton Switch (Cylindrical 22/25-dia.)