Switches & Pilot Devices
Terminal Blocks
Contactors
Timers
Relays & Sockets
Signaling Lights
Switches & Pilot Devices
Miniature ø8mm A8 Series
A8 Series — Miniature Switches and Pilot Devices: 8mm
Key features:
• 21/64” (8mm) round mounting hole
• Compact Design Saves Space
• Bright and Vivid Illumination
• Choice of Shapes and Functions
• Gold Clad Silver Contacts for reliable low level switching
• Snap action contacts
• IP40 (Dustproof) Construction
UL Listed
File No. E55996
Specifications
LED Lamp Life
50,000 hours approximately (reduced to half of original intensity)
Contact Configuration
SPDT
Maximum Voltage
250V AC/DC
Thermal Current
3A
Contact Material
Gold-clad Silver
Terminal Style
Solder Tab Terminal
Operating Temperature
–25º to +55ºC (no freezing)
Operating Humidity
45 to 85% RH
Contact Resistance
50mΩ maximum (initial value)
Insulation Resistance
100MΩ minimum
(500V DC megger)
Vibration Resistance
5 to 55Hz, 0.75mm amplitude
Shock Resistance
Damage limits: 500m/sec2 (approx. 50G)
Operating extremes: 200m/sec2 (approx. 20G)
Electrical Life
100,000 operations minimum
Mechanical Life
Maintained: 100,000 (1200 operations/hour)
Momentary: 200,000 minimum
Degree of Protection
IP40 Enclosed/Dustproof
Soldering Temperature
20W/5 seconds or 260ºC/3 seconds
Dielectric Strength
Switch Unit: 2,000V AC, 1 min. between live/dead part and terminals
of different poles; 1,000V AC, 1 minute between terminals of the same
pole; 1,500V AC, 1 minute between contact and lamp terminals.
Illumination Unit: 2,000V AC, 1 min. between live part/ground
Contact Ratings
Operating Voltage
24V
120V
Resistive
—
1.0A
0.5A
Inductive
—
0.7A
0.5A
AC
50/60Hz
Circuit Breakers
CSA Certified
File No. LR21451
DC
240V
Resistive
1.0A
0.2A
—
Inductive
0.7A
0.1A
—
1. AC Inductive Load, PF = 0.6 – 0.7; DC Inductive Load, L/R = 7.
2. Minimum applicable load (reference value) is 5V AC/DC 3mA
(applicable range is subject to the operating conditions and load).
456
www.IDEC.com
Switches & Pilot Devices
Miniature ø8mm A8 Series
Switches & Pilot Devices
AB8 Non-Illuminated Pushbuttons (Assembled)
Non-Illuminated Pushbuttons
Style
Contact
SPDT
Round
Part Numbers
Momentary
Maintained
AB8M-M1-j
AB8M-A1-j
Signaling Lights
j Button Color Codes
Square
SPDT
Rectangular
SPDT
AB8Q-M1-j
AB8H-M1-j
AB8Q-A1-j
AB8H-A1-j
Color
Code
Black
B
Green
G
Red
R
S
W
Yellow
Y
Relays & Sockets
Blue
White
1. In place of j, specify button color code from the table below.
2. For accessories, see page 459.
3. For dimensions, see page 460.
Timers
Contactors
Terminal Blocks
Circuit Breakers
800-262-IDEC (4332) • USA & Canada
457
Switches & Pilot Devices
Switches & Pilot Devices
Miniature ø8mm A8 Series
AL8 Illuminated Pushbuttons & Pilot Lights (Assembled)
Illuminated Pushbuttons
Style
SPDT
Signaling Lights
Round
Relays & Sockets
Part Numbers
Contact
Momentary
Maintained
Pilot Light
Part Number
AL8M-M11-k
AL8M-A11-k
AL8M-P1-k
k LED/Lens Color Codes
Square
SPDT
Rectangular
AL8Q-M11-k
SPDT
AL8H-M11-k
AL8Q-A11-k
AL8H-A11-k
Amber
A
Green
G
Red
R
White
W
Yellow
Y
LED Voltage and Recommended Current Limiting Resistor
LED Lamp
Part Number
Voltage
External Resistor
Amber
Amber
LAD-SA
Green
Green
LAD-SG
Red
Red
LAD-SR
5V DC
6V DC
12V DC
24V DC
150Ω, 1/2W
200Ω, 1/2W
510Ω, 1W
1.1kΩ, 1W
White
Yellow*
LAD-SY
Yellow
Yellow
LAD-SY
Timers
Lens Color
* White units use a white lens and a yellow LED.
Contactors
AL8H-P1-k
Code
1. In place of k, specify lens color code from table on the right.
2. A replaceable LED lamp is included with the operator.
3. Because the LED lamp does not contain an internal current limiting resistor, an external resistor must be added.
For recommended values, see table below.
4. For accessories, see page 459.
5. For dimensions, see page 460.
Replacement LEDs
LED Lamp Ratings: LED Specifications
LED
Lamp
Forward
Current
If
Forward Voltage
(Nominal)
Vf
Reverse
Voltage
Vr
Amber
20mA
2.2V
4V
Green
20mA
2.1V
4V
Red
20mA
1.7V
4V
20mA
2.2V
4V
Yellow
Operating Voltage & External
Current Limiting Resistor
(Recommended Value)
5V DC: 150Ω, 1/2W
6V DC: 200Ω, 1/2W
12V DC: 510Ω, 1W
24V DC: 1.1kΩ, 1W
When LED lamps are used at voltages other than those stated above, external resistor value, R, is determined by the
following formula: R = (Operating Voltage – Vf) / If
Circuit Breakers
Terminal Blocks
AL8Q-P1-k
Color
458
www.IDEC.com
Switches & Pilot Devices
Miniature ø8mm A8 Series
Switches & Pilot Devices
Accessories
Description
Item
Locking Ring Wrench
Used With
Made of metal. Used for tightening plastic locking ring during
installation. Tightening torque should not exceed 3kgf-cm
Part Number
All units
MT-004
Lens Removal Tool
MT-101
Made of rubber. Used for removing and replacing LED lamps in
illuminated units
Illuminated pushbuttons and pilot lights
OR-66
Round & square units
AL-K8
Rectangular units
AL-KH8
All units
AL-V8
Switch Guard
Used to avoid operating the pushbutton inadvertently. Cover flips
open 90˚. Provides IP40 protection
Signaling Lights
Lamp Holder Tool
Made of metal. Used for removing lens or button from the housing Illuminated pushbuttons and pilot lights
Terminal Cover
Made of translucent nylon. Fits over and shields the terminals
AL-C8
AL-C8V shown attached
Mounting Hole Plug
AL-C8
All units
AL-C8V
Made of rubber. Fills unused mounting holes to provide IP65
protection
Extra panel cutouts
AL-B8
LAD-SR (red)
LED lamp is included in every illuminated control unit. Replacement lamp is ordered separately. External current limiting resistor
required.
LAD-SG (green)
Illuminated units and pilot lights
Timers
Replacements LEDs
Plug-on adaptor with PCB terminals, allows easy control unit
replacement.
Relays & Sockets
Plug-on adaptor with solder terminals, allows easy control unit
replacement.
Adaptor Socket
LAD-SA (amber)
LAD-SY (yellow)
Replacement Lenses
Illuminated pushbuttons
and pilot lights
Replacement Buttons
1. In place of j, specify Button Color Code from the table.
2. In place of k, specify Lens Color Code from table.
j Button Color Codes
Color
AL8M-LK1-k
Square
AL8Q-LK1-k
Rectangular
AL8H-LK1-k
Round
AB8M-BK1-j
Square
AB8Q-BK1-j
Rectangular
AB8H-BK1-j
Contactors
Non-Illuminated buttons
Round
k LED/Lens Color Codes
Code
Color
Code
B
Amber
A
G
Green
G
Red
R
Red
R
Blue
S
White
W
White
W
Yellow
Y
Yellow
Y
Terminal Blocks
Black
Green
Circuit Breakers
800-262-IDEC (4332) • USA & Canada
459
Switches & Pilot Devices
Dimensions
A∆8
Panel Cut-Out (not drawn to scale)
Panel Thickness 0.5 to 6
Rectangular
Round
(TOP)
c9
ø9
Signaling Lights
2.5
ø9
5
5.5
5.5
7
22
+0.2
0
ø8
9
2.5
Terminal Width
1.8 × 0.4t
Square
(TOP)
9 min.
Rectangular
(TOP)
Locking Ring
12
9
12 min.
(TOP)
Round/Square
NC
ø8
+0.2
0
COM
Lamp
Terminal (–)
Terminal Sockets
9 min.
Terminal 0.8 × 0.3t
6.3
33
For Round/Square Units
(AL-K8)
2.5
33
Terminal Arrangement
(TOP)
6.3
For Rectangular Units
(AL-KH8)
Switch Guard, Ø 21/64" (8mm)
2.5
Relays & Sockets
Lamp
Terminal (+)
9 min.
NO
10
NC
21.5
12
Panel Thickness 0.5 to 5
2.5
Terminal Arrangement
(TOP)
PC Board Terminal
(AL-C8V)
8.5
2.5
+0.2
0
14.5
5-1.0
Holes
(PC Board Terminal
Mounting Hole Layout)
11 min.
COM
Lamp
Terminal (+)
6
3
Lamp
Terminal (–)
17.5 min.
Solder Terminal
(AL-C8)
17
17.5 min.
8.8
8.5
5
6
Timers
17
2.5
14.5
NO
(Bottom View)
12.5
For Round/Square Units
(AL-K8)
13 min.
NC
For Rectan
(AL-KH8)
10
(Bottom View)
Terminal Cover
www.IDEC.com
8.5
21.5
12
8.5
6
14.5
8.5
Circuit Breakers
11 min.
460
For Rectangular Units
(AL-KH8)
10
17.5 min.
17.3
6
Terminal Blocks
33.5
14.5
11 min.
For Round/Square Units
(AL-K8)
ø9.1
AL-V8, Ø 21/64" (8mm)
6
17.5 min.
Lamp
Terminal (–)
17.5 min.
ard Terminal
g Hole Layout)
COM
6
Lamp
Terminal (+)
14.5
Holes
14.5
+0.2
0
8.5
NO
Contactors 2.5
0
Switches & Pilot Devices
Miniature ø8mm A8 Series
13 min.
12.5
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