18000 series
Snap-action momentary pushbutton switches
Distinctive features and specifications
❑
Panel and PC mount models
❑
Snap-in panel mounting version
❑
Tactile feedback
B
ELECTRICAL SPECIFICATIONS
• Max. current/voltage rating with resistive load :
- gold plated brass contacts : 100mA - 30VDC
- gold plated silver contacts : 1A 125VAC, 1A 30VDC
• Initial contact resistance : 50 mΩ max.
• Insulation resistance : 1.000 MΩ min.
• Dielectric strength : 1.000 Vrms 50 Hz min.
• Electrical life : 60.000 cycles at full load
Models for high currents : see 18635A and 18645A
at the end of the series.
MATERIALS
GENERAL SPECIFICATIONS
• Case : PBT
• Actuator : polyamide, glass
filled
• Bushing : brass, nickel plated
• Housing : stainless steel
• Bracket : tin plated steel
• Contacts
AD
: silver, gold plated
CD
: brass, gold plated
• Terminal seal : epoxy
• Total travel : 0,5 mm (.019)
• Torque : 1,25 Nm (.922 Ft.lb) max. applied to nut
• Operating temperature : -30°C to +65°C
• Soldering : 300°C, 3 sec. max.
APEM
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B-75
18000 series
Snap-action momentary pushbutton switches
Overview
18
SERIES
Number of poles
3
4
Single pole
Double pole
Blank
W
WW
Y
Terminals
Solder lugs or straight PC depending
on model
Right angle, horizontal mounting
Right angle, vertical mounting
Bracket mounting
B
Terminals and bushing
2
Straight PC terminals with Ø 6,35 (1/4)
threaded bushing
Straight PC terminals + bracket or
right angle terminals with plain bushing
Solder lug terminals with Ø 6,35 (1/4)
threaded bushing.
Solder lug terminals with Ø 6,35 (1/4)
flatted bushing.
Solder lug terminals, snap-in mounting
Straight PC terminals with Ø 6,35 (1/4)
flatted bushing.
5
Electrical function
ON
-
MOM
5
7
8
9
ABOUT THIS SERIES
On the following pages, you will find successively :
- model structure of switches
- options in the same order as in above chart
Dimensions
: first dimensions are in mm while inches are shown as bracketted numbers.
: please note that not all combinations of above numbers are available.
Refer to the following pages for further information.
NOTICE
B-76
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APEM
18000 series
Snap-action momentary pushbutton switches
Overview
Contact materials
AD
CD
Silver, gold plated
Brass, gold plated
Special options
X624
Shorter bushing and
plunger
X662
Snap-in mounting and
straight PC terminals
Other : specific bushings,
etc... See following pages.
Bezels
For snap-in mounting models
U1200
U1210
for LED
For bracket mounting models
U3200
B
Plungers
-13
-6
-3
-5
Ø 4 (.157), length 6 mm (.236)
Standard with threaded bushing
Ø 3,1 (.122), length 5,85 mm (.230)
Ø 4 (.157), length 5,5 mm (.216)
Standard with plain bushing
Ø 3,1 (.122), length 6,3 mm (.248)
Caps
For Ø 4 (.157) plungers (-3, -13)
U900
Ø 5 (.196)
U1140
Ø 8 (.314)
U1720
Ø 9,4 (.370)
U480
Ø 10 (.393) - standard
U630
Ø 15 (.590)
U2430
Square
Height 4 (.157)
U2020
Square
Height 6 (.236)
For Ø 3,1 (.122) plungers (-5, -6)
U2400
Ø 5 (.196)
U2510
Ø 8 (.314)
U2130
Ø 9,4 (.370)
U2900
Ø 10 (.393)
U3400
Ø 15 (.590)
U910
Square
Height 4 (.157)
U2340
Square
Height 6 (.236)
Sealing boots
are available to protect the switches against dust and water. They are presented in section H.
Mounting accessories
: standard hardware supplied with all models with Ø 6,35 (1/4) threaded bushing :
2 hex nuts 8 mm (.314) across flats, 1 locking ring and 1 lockwasher.
Standard and special hardware available are presented in section I.
Packaging unit
: 25 pieces for W, WW double pole and 18800 models
50 pieces for other models.
APEM
www.apem.com
B-77
18000 series
Snap-action momentary pushbutton switches
Threaded bushing Ø 6,35 (1/4) : 18500 - 18700 - 18200
➞
Keyway
•
Solder lug or straight PC terminals
•
Epoxy sealed terminals standard
2.00
(.078)
3.70
(.145)
5.50
(.216)
1
2
3
1.00
(.039)
1.80
(.070)
0.60
(.023)
B
MODEL
STRUCTURE
Shown with standard plunger (-13)
Solder lug terminals : 18500
➞
Keyway
6.00
(.236)
Ø4.00
(.157 DIA)
13.20
(.519)
Ø6.35-40UNS
(1/4-40UNS)
1-3
Single pole
18535
Double pole
18545
ON
1-2
8.00
(.314)
1.00
(.039)
12.00
(.472)
MOM
1.80
(.070)
7.00
(.275)
3.70
(.145)
ON
MOM
0.60
(.023)
1
2
3
12.00
(.472)
4.75
(.187)
4.70
(.185)
EPOXY
Flatted bushing - solder lug terminals : 18700
➞
Flat
6.00
(.236)
Ø4.00
(.157 DIA)
13.20
(.519)
5.70
(.224)
Ø6.35-40UNS
(1/4-40UNS)
1-3
Single pole
18735
Double pole
18745
ON
1-2
8.00
(.314)
1.00
(.039)
12.00
(.472)
MOM
1.80
(.070)
7.00
(.275)
3.70
(.145)
ON
MOM
0.60
(.023)
1
2
3
12.00
(.472)
4.75
(.187)
4.70
(.185)
EPOXY
Straight PC terminals : 18200
➞
Keyway
6.00
(.236)
4.70
(.185)
Ø1.60
(.062 DIA)
8.00
(.314)
1.00
(.039)
13.35
(.523)
4.70
(.185)
4.75
(.187)
4.10
(.161)
12.00
(.472)
4.75
(.187)
Ø4.00
(.157 DIA)
13.20
(.519)
Ø6.35-40UNS
(1/4-40UNS)
1-3
Single pole
18235
Double pole
18245
ON
1-2
MOM
0.60
(.023)
7.00
(.275)
ON
MOM
0.60 1
(.023)
4.70
(.185)
EPOXY
2
3
B-78
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APEM
4.10
(.161)
18000 series
Snap-action momentary pushbutton switches
Threaded bushing Ø 6,35 (1/4) : 18900 - Snap-in mounting : 18800
Flatted bushing - straight PC terminals : 18900
➞
Flat
6.00
(.236)
5.70
(.224)
4.70
(.185)
Ø1.60
(.062 DIA)
8.00
(.314)
1.00
(.039)
13.35
(.523)
4.70
(.185)
4.75
(.187)
4.10
(.161)
12.00
(.472)
4.75
(.187)
Ø4.00
(.157 DIA)
13.20
(.519)
Ø6.35-40UNS
(1/4-40UNS)
1-3
Single pole
18935
Double pole
18945
ON
1-2
MOM
ON
MOM
0.60
(.023)
7.00
(.275)
0.60 1
(.023)
4.70
(.185)
EPOXY
2
3
B
Shown with cap U910 + U1200
19.50
(.767)
4.10
(.161)
Snap-in mounting - solder lug terminals : 18800
15.70
(.618)
11.50
(.452)
2.00
(.078)
11.50
(.452)
1-3
Single pole
18835
Double pole
18845
ON
1-2
16.50
(.649)
3.70
(.145)
ON
MOM
1.80
(.070)
7.00
(.275)
1
0.60
(.023)
4.70
(.185)
2
3
2.50 Maxi
(.098 MAX)
MOM
4.75
(.187)
12.00
(.472)
EPOXY
13.20
(.519)
Available with straight PC terminals : see
X662 under "Special options".
PANEL CUT
-
OUT
18500 - 18200
Ø6.50
(.255 DIA)
Ø2.20
(.086 DIA)
18700 - 18900
Ø6.50
(.255 DIA)
5.20
(.204)
2.70
(.106)
PANEL CUT
-
OUT
18800
15.00
(.590)
15.00
(.590)
Ø8.00
(.314 DIA)
12.50
(.492)
12.50
(.492)
13.20
(.519)
With bezel
U1200
With bezel
U1210
for LED
APEM
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B-79
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