A20 Series push buttons and switches DECA Ø22mm push buttons, selector switches, and E-stop switches

Key Features

  • Removable operator
  • Compact and light-weight
  • IP20 finger-safe screw terminals (IEC 60529)
  • Separate contact block makes installation and removal easy
  • Pilot lights feature a large lens for a wide viewing angle
  • Matted surfaces on the buttons, lenses, and bezels reduce reflection of ambient light
  • UL, c-UL listed, EN compliant, and CCC approved
1. Bezel
Blank Plastic bezel
4 Metal bezel
2. Style
B Pushbutton
L Illuminated Pushbutton
3. Operator
M Momentary
A Maintained
V Emergency Stop Switch
4. Shape
1 Flush (only for non-illuminated pushbuttons)
2 Extended
F2 Extended with Full Shroud(only for illuminated pushbuttons)
4 Mushroom
5. Contact arrangement
10 1NO
01 1NC
20 2NO
02 2NC
11 1NO+1NC
12 1NO+2NC
21 2NO+1NC
30 3NO
03 3NC
6. Operator voltage
Blank For non-illuminated pushbutton
Q0 Without lamp
Q2 LED 6VAC/DC
Q3 LED 12VAC/DC
Q4 LED 24VAC/DC
QH LED 110VAC/DC
QM3 LED 230/240VAC/DC
7. Color
R Red
Y Yellow
G Green
S Blue
W White
B Black (Non illuminated pushbuttons only)
C Clear (Illuminated pushbuttons only)
8. Pushbutton head
Blank Flush (10.5mm) – Plastic bezel pushbottons only
B Flush (12.9mm)
BU Flush (12.9mm) silhouette (Metal bezel flush type only)
U Flush (10.5mm) silhouette (Metal bezel only)
1. Bezel
Blank Plastic bezel
4 Metal bezel
2. Style
S Selector switch
F Illuminated selector switch
3. Position
2 2 positions
3 3 positions
4. Action
Blank Maintained
1 Spring return from right
3 Spring return from two-way (3 position switch only)
5. Contact arrangement
10 1NO
01 1NC
20 2NO
02 2NC
11 1NO+1NC
12 1NO+2NC
21 2NO+1NC
30 3NO
03 3NC
6. Operator voltage
Blank For non-illuminated pushbutton
Q0 Without lamp
Q2 LED 6VAC/DC
Q3 LED 12VAC/DC
Q4 LED 24VAC/DC
QH LED 110VAC/DC
QM3 LED 230/240VAC/DC
7. Color
R Red
Y Yellow
G Green
S Blue
W White
B Black (Non illuminated pushbuttons only)
C Clear (Illuminated pushbuttons only)
8. Pushbutton head
Blank Flush
U Flush silhouette (only with metal bezel)
1. Position
2 2 positions
3 3 positions
2. Action
Blank Maintained
1 Spring return from right
3 Spring return from two-way (3 position switch only)
3. Function
2 positions 3 positions
A Key removable in L+R Key removable in L+C+R
B Key removable in L Key removable in L+C
C Key removable in R Key removable in C+R
D Key removable in C
E Key removable in L+R
G Key removable in L
H Key removable in R
4. Contact arrangement
10 1NO
01 1NC
20 2NO
02 2NC
11 1NO+1NC
12 1NO+2NC
21 2NO+1NC
30 3NO
03 3NC
GENERAL INFORMATION
Contact resistance Max. 50mΩ (initial value)
Insulation Resistance 100mΩ minimum at 500VDC megger
Dielectric strength Contact block 2,500VAC for 1 minute
Illuminated unit 2,000VAC for 1 minute
Vibration Resistance E-stop swtiches Operation Extremes: 10-500Mhz, Amplitude: 0.35mm 50m/s²
Damage Extremes: 10-500Mhz, Amplitude: 0.35mm 50m/s²
Indicator,Pushbutton,Selector switches Operation Extremes: 5-55Mhz, Amplitude: 0.5mm
Damage Extremes: 50Mhz, Amplitude: 1.5mm
Shock Resistance E-stop swtiches Operation Extremes: 150m/s²
Damage Extremes: 1,000m/s²
Indicator,Pushbutton,Selector switches Operation Extremes: 100m/s²
Damage Extremes: 1,000m/s²
Mechanical Durability E-stop swtiches 250,000
Pushbutton Momentary: 5,000,000 (1 contact), 1,000,000 (2 contact)
Maintained: 250,000 (1 contact), 100,000 (2 contacts)
Selector switches 250,000 (1 contact), 100,000 (2 contacts)
Electrical Life E-stop swtiches 100,000
Pushbutton 250,000 (1 contact), 100,000 (2 contacts)
Selector switches 250,000 (1 contact), 100,000 (2 contacts)
Ambient temperature Operation: -25°C~ +55°C, Storage: -45°C~+85°C
Ambient humidity 45~85%RH
Degree of protection IP66
Terminal Soldering Temperature 20W 5sec / 260°C 3sec
Contacts
Material Silver
Rated Insulation Voltage 250VAC
Thermal Current 10A
Maximum Voltage 600V
Operation Voltage (AC/DC) 24V 120V 240V 380V
AC 50/60Hz Resistive load 10A 10A 6A 2A
Inductive load 10A 6A 3A 1.9A
DC Resistive load 8A 2.2A 1.1A
Inductive load 4A 1.1A 0.55A
Minimum Applicable load 3VAC/DC x 3mA
LED
Type No. Rate Current Current Draw Color code LED Life
LAED-6 6VAC/DC 10mA (R, Y) G:Green / W:White / R:Red / S:Blue / Y:Yellow 50,000hrs
7mA (G, W, S)
LAED-1 12VAC/DV 14mA (R, Y) 50,000hrs
13mA (G, W, S)
LAED-2 24VAC/DC 14mA (R, Y) 50,000hrs
13mA (G, W, S)
LAED-J 110VAC/DC 5.5mA 50,000hrs
LAED-M3 230/240V 2.7mA 50,000hrs
Image Part number Description
 A20B-E00P A20B-E00P Contact block mounting adapter
 A20-E01P A20-E01P 1NC Contact block
 A20-E10P A20-E10P 1NO Contact block
 A20-E20P A20-E20P 2NO contact block
A20-E11P 1NO-1NC contact block
A20-E02P 2NC contact block
 A20-E00P A20-E00P Lamp socket – full voltage adapter
 LAED LAED-②③* LED lamp
 A29Z-KL1 A29Z-KL1 Padlock cover
 MC-P100 MC-P100 Locking ring wrench
 BC-HP-PG22 BC-HP-PG22 Plastic hole plug
 MW-25P MW-25P Water proof cap
MW-25L
 MPC-KA-LD22 MPC-KA-LD22 E-Stop switch protect cover
* (Operation Voltage) = 6: 6VAC/DC, 1: 12VAC/DC, 2: 24VAC/DC, H: 110VAC/DC, M3: 230/240VAC/DC) * (Lens color) = A: Amber, G: Green, R: Red, S: Blue, W: White, Y: Yellow
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