Home > Push Buttons & Switches > Non-Illuminated Push Button Switches > Maintained Non-Illuminated Push Button Switches >

Deca A20B-A4E02W 22 mm Maintained Push Button, Mushroom Head, 2NC, White

Deca A20B-A4E02W 22 mm Push Button, Mushroom Head, White
Deca A20B-A4E02W 22 mm Maintained Push Button, Mushroom Head, White

Alternative Views:

Our Price: $9.72
MFG P/N: A20B-A4E02W
MFG: Deca
Weight (lbs): 0.1

Product Code: A20B-A4E02W


The Deca A20B-A4E02W maintained push button has a white mushroom head with a 2NC contact arrangement. Made for 22mm mounting holes. Contacts are silver, with a maximum voltage of 600V and thermal current of 10A. Not illuminated. A detachable contact block makes for easy installation or removal. It features a removable push button operator, with a matte finish that minimizes reflections. A maintained push button switch remains in the same state until it is pressed, whether activated or not, which changes the state until it is pressed again. Rated IP 65. Complies with EN standard


  • Bezel- Plastic
  • Push Button Type- Maintained
  • Push Button Shape & Color- 40mm Dia. Mushroom Head, White
  • Contact Arrangement- 2NC
  • Contact Material- Silver
  • Overall Dimensions- 66.3mm L x 45.8mm H x 40mm Diameter
  • Rated Insulation Voltage- 250VAC
  • Thermal Current- 10A
  • Max Voltage- 600V
  • Operating Voltage AC/DC- 24V, 120V, 240V, 380V
  • AC Resistive Load- 10A @ 24V, 10A @ 120V, 6A @ 240V, 2A @ 380V
  • AC Inductive Load- 10A @ 24V, 6A @ 120V, 3A @ 240V, 1.9A @ 380V
  • DC Resistive Load- 8A @ 24V, 2.2A @ 120V, 1.1A @ 240V
  • DC Inductive Load- 4A @ 24V, 1.1A @ 120V, 0.55A @ 240V
  • Min Applicable Load- 3V AC/DC x 3mA
  • Contact Resistance- Max. 50 mOhm
  • Insulation Resistance- 100 MOhm at 500VDC
  • Dielectric Strength- 2500 VAC for 1 min
  • Vibration Resistance- 5-55Mhz, amplitude: 0.5mm (Operation Extremes), 50Mhz, amplitude 1.5mm (Damage Extremes)
  • Shock Resistance- Operation Extremes: 100m/s2, Damage Extremes: 1000m/s2
  • Mechanical Durability- 250,000 (1 contact), 100,000 (2 contacts)
  • Electrical Life- 250,000 (1 contact), 100,000 (2 contacts)
  • Operating Temperature: -25 C to +55 C (-13 F to 131 F)
  • Storage Temperature: -45 C to +85 C (-49 F to 185 F)
  • Ambient Humidity- 45-85% RH
  • Degree of Protection- IP 65
  • Terminal Soldering- 20W 5sec / 260 C 3sec
  • Approvals- UL & CUL Listed, CE

A20B-A4E02W Deca White Mushroom Head 2NC Push Button Switch

Related Products
Deca A20B-E00P Contact Block Mounting Adapter for A20 Series Push Buttons
Our Price: $1.30

Deca Contact Block Mounting Adapter for A20 Series Push Buttons