Page 1
APEM www.apem.com B-73
18000 series
Snap-action momentary pushbutton switches
Distinctive features and specifications
B
❑
Panel and PC mount models
❑ Snap-in panel mounting version
❑ Tactile feedback
MATERIALS
• 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
ELECTRICAL SPECIFICATIONS
• Max. current/voltage rating with resistive load : Models for high currents : see 18635A and 18645A
- gold plated brass contacts : 100mA - 30VDC at the end of the series.
- 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
GENERAL SPECIFICATIONS
• 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.
Page 2
B-74 APEM www.apem.com
18000 series
Snap-action momentary pushbutton switches
Overview
B
18
SERIES
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
5 Solder lug terminals with Ø 6,35 (1/4)
threaded bushing.
7 Solder lug terminals with Ø 6,35 (1/4)
flatted bushing.
8 Solder lug terminals, snap-in mounting
9 Straight PC terminals with Ø 6,35 (1/4)
flatted bushing.
Number of poles
3 Single pole
4 Double pole
Electrical function
5 ON - MOM
Terminals
Blank Solder lugs or straight PC depending
on model
W Right angle, horizontal mounting
WW Right angle, vertical mounting
Y Bracket mounting
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.
NOTICE : please note that not all combinations of above numbers are available.
Refer to the following pages for further information.
Page 3
APEM www.apem.com B-75
18000 series
Snap-action momentary pushbutton switches
Overview
B
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.
Plungers
-13 Ø 4 (.157), length 6 mm (.236)
Standard with threaded bushing
-6 Ø 3,1 (.122), length 5,85 mm (.230)
-3 Ø 4 (.157), length 5,5 mm (.216)
Standard with plain bushing
-5 Ø 3,1 (.122), length 6,3 mm (.248)
Special options
X624 Shorter bushing and
plunger
X662 Snap-in mounting and
straight PC terminals
Other : specific bushings,
etc... See following pages.
Caps
For Ø 4 (.157) plungers (-3, -13)
U900 Ø5 (.196)
U1140 Ø 8 (.314)
U1720 Ø 9,4 (.370)
U480 Ø10 (.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 Ø5 (.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)
Bezels
For snap-in mounting models
U1200
U1210 for LED
For bracket mounting models
U3200
Contact materials
AD Silver, gold plated
CD Brass, gold plated
Page 4
B-76 APEM www.apem.com
18000 series
Snap-action momentary pushbutton switches
Threaded bushing Ø 6,35 (1/4) : 18500 - 18700 - 18200
B
Solder lug terminals : 18500
Straight PC terminals : 18200
Flatted bushing - solder lug terminals : 18700
MODEL
STRUCTURE
• Solder lug or straight PC terminals
• Epoxy sealed terminals standard
1-3 1-2
Single pole
18535 ON MOM
Double pole
18545 ON MOM
1-3 1-2
Single pole
18735 ON MOM
Double pole
18745 ON MOM
1-3 1-2
Single pole
18235 ON MOM
Double pole
18245 ON MOM
Shown with standard plunger (-13)
➞
Keyway
➞
Keyway
➞
Flat
➞
Keyway
12 3
(.216)
(.161)
(.023)
5.50
4.10
0.60
(.070)
(.145)
(.078)
3.70
2.00
1.80
(.039)
1.00
1.80
(.070)
7.00
(.275)
Ø4.00
(.157 DIA)
13.20
(.519)
EPOXY
8.00 6.00
(.023)
(.314) (.236)
0.60
1 2 3
4.70
(.185)
1.00
(.039)
(.472)(.145)
3.70 12.00
Ø6.35-40UNS
(1/4-40UNS)
12.00
(.472)
4.75
(.187)
(.023)
7.00
(.275)
1.80
(.070)
7.00
(.275)
(.157 DIA)
0.60
(.157 DIA)
Ø4.00
Ø4.00
6.008.00
(.236)(.314)
0.60
(.023)
EPOXY
EPOXY
4.70
(.185)
6.008.00
(.236)(.314)
0.60
(.023)
13.20
(.519)
1 2 3
4.70
(.185)
13.20
(.519)
1 2 3
1.00
(.039)
13.35
4.10
5.70
(.224)
1.00
(.523)
(.161)
(.039)
Ø6.35-40UNS
(1/4-40UNS)
12.003.70
(.145) (.472)
12.00
(.472)
Ø6.35-40UNS
(1/4-40UNS)
12.00
(.472)
4.75
(.187)
4.75
(.187)
Ø1.60
(.062 DIA)
4.70
(.185)
4.70
4.75
(.187)
(.185)
Page 5
APEM www.apem.com B-77
18000 series
Snap-action momentary pushbutton switches
Threaded bushing Ø 6,35 (1/4) : 18900 - Snap-in mounting : 18800
B
Snap-in mounting - solder lug terminals : 18800
Flatted bushing - straight PC terminals : 18900
1-3 1-2
Single pole
18935 ON MOM
Double pole
18945 ON MOM
1-3 1-2
Single pole
18835 ON MOM
Double pole
18845 ON MOM
PANEL CUT-OUT
18500 - 18200 18700 - 18900
PANEL CUT-OUT
18800
With bezel U1200 With bezel U1210 for LED
Shown with cap U910 + U1200
Available with straight PC terminals : see
X662 under "Special options".
➞
Flat
Ø6.35-40UNS
(.039)
13.35
4.10
(.523)
(.161)
(1/4-40UNS)
12.00
(.472)
4.75
(.187)
(.062 DIA)
(.023)
7.00
(.275)
0.60
Ø4.00
(.157 DIA)
8.00 6.00
(.314) (.236)
0.60
(.023)
EPOXY
4.70
(.185)
13.20
(.519)
1 2 3
5.70
(.224)
1.00
Ø1.60
4.70
(.185)
4.70
4.75
(.187)
(.185)
Ø6.50
(.255 DIA)
5.20
(.204)
Ø2.20
(.086 DIA)
Ø6.50
(.255 DIA)
2.70
(.106)
7.00
(.275)
1.80
(.070)
15.70
(.618)
19.50
(.767)
11.50
0.60
(.023)
1 2 3
4.70
(.185)
(.452)
13.20
(.519)
EPOXY
2.00
2.50 Maxi
(.098 MAX) (.078)
4.10
3.70 16.50
(.161)
(.145) (.649)
11.50
(.452)
12.00
(.472)
4.75
(.187)
(.492)
15.00
(.590)
13.20
(.519)
Ø8.00
(.314 DIA)
15.00
(.590)
12.50
(.492)
12.50
Page 6
B-78 APEM www.apem.com
18000 series
Snap-action momentary pushbutton switches
Plain bushing : 18200Y - 18200W - 18200WW
B
Right angle terminals - horizontal : 18200W
Straight PC terminals - bracket mounting - doube pole 18240Y
Straight PC terminals - bracket mounting - single pole 18230Y
MODEL
STRUCTURE
• Straight PC or right angle terminals
• Epoxy sealed terminals standard
18235Y ON MOM
18245Y ON MOM
Single pole
18235W ON MOM
Double pole
18245W ON MOM
Shown with standard plunger (-3)
321
(.216)
(.161)
(.023)
5.50
4.10
0.60
(.511)(.161)
4.10 13.00
8.20
(.322)
(.511)(.185)
4.70 13.00
3.18
(.125)
3.18
(.125)
5.506.80
(.267) (.216)
EPOXY
5.107.20
EPOXY
(.283) (.200)
Ø4.00
(.157 DIA)
1
2
15.75
(.620)
Ø4.00
(.157 DIA)
1
2
15.75
(.620)
Ø6.25
(.246 DIA)
Ø1.60
(.062 DIA)
3.18
(.125)
4.70
(.185)
15.75
(.185)
Ø1.60
(.062 DIA)
(.620)
15.75
(.620)
0.40
3
(.015)
0.40
3
(.015)
Ø6.25
(.246 DIA)
12.00
(.472)
1.27
(.050)
(.275)
1.27
(.050)
7.00
3.18
(.125)
4.70
4.75
(.187)
8.60
0.40
(.015)
12.70
(.500) (.338)
0.60
(.023)
3.70 7.00
Ø6.25
(.246 DIA)
(.275)(.145)
11.00 7.20 5.50
0.60
(.023)
(.433) (.283) (.216)
(.185)
(.157 DIA)
4.70
Ø4.00
3 2 1
13.20
(.519)
12.00
(.472)
EPOXY
0.40
(.015)
8.60
3.81 12.70
(.500) (.338)(.150)
5.08
(.200)
12.703.81 12.70
(.500)
(.500)(.150)
4.70
(.185)
Ø1.60
(.062 DIA)
5.08
(.200)
(.185)
4.70
Page 7
APEM www.apem.com B-79
18000 series
Snap-action momentary pushbutton switches
B
Right angle terminals - vertical : 18200WW
CONTACT MATERIALS
AD Silver, gold plated
CD Brass, gold plated
Dash compulsory before plunger code.
PLUNGERS
-13
-6
Ø 4 (.157) - standard with threaded bushing
Ø 3,1 (.122)
-3
-5
Ø 4 (.157) - standard with plain bushing Ø 3,1 (.122)
1-3 1-2
Single pole
18235WW ON MOM
Double pole
18245WW ON MOM
If plunger not specified, we
supply former default option -13.
Ø6.25
(.246 DIA) (.472)
12.70 6.85
(.500) (.269)(.150)
0.60
(.023)
7.00
(.275)
3.81
3.00 13.20
0.40
0.60
(.015)
(.023)
(.157 DIA)
1
2
3
Ø4.00
(.519)(.118)
5.507.2011.00
(.433) (.283) (.216)
EPOXY
4.75
(.187)
12.00
5.08
(.200)
(.062 DIA)
5.08
(.200)
4.75
(.187)
(.500)(.150)(.500)(.150)
Ø1.60
3.81 12.70 3.81 12.70
6.00
9.00
3.70
9.00
(.236)
(.354)
(.145)
(.354)
Ø4.00
(.157 DIA)
Ø4.00
(.157 DIA)
1.00
1.00
(.039)
(.039)
Ø4.00
(.157 DIA)
7.80
(.307)
1.00
7.20
(.283)
(.039)
Ø4.00
(.157 DIA)
5.507.20
(.216)(.283)
1.00
(.039)
Ø3.10
(.122 DIA)
7.65
(.301)
7.20
(.283)
Ø3.10
(.122 DIA)
6.30
(.248)(.283)
7.20
1.00
1.00
(.039)
(.039)
5.85
9.00
4.50
9.00
(.230)
(.354)
(.177)
(.354)
Ø3.10
(.122 DIA)
Ø3.10
(.122 DIA)
1.00
1.00
(.039)
(.039)
Page 8
B-80 APEM www.apem.com
18000 series
Snap-action momentary pushbutton switches
B
SPECIAL OPTIONS
Single pole
18235Y -2X624 ON MOM
Double pole
18245Y -2X624 ON MOM
Single pole
18835 X662 ON MOM
Double pole
18845 X662 ON MOM
X624 Straight PC terminals - bracket mounting - with shorter bushing and plunger
X662 Snap-in mounting - straight PC terminals
F Tin dipped terminals (for PC terminals only)
(.511)(.161)
4.10 13.00
3.18
(.125)
3.804.10
(.161) (.149)
EPOXY
(.122 DIA)
1
2
15.75
(.620)
Ø5.20Ø3.10
(.204 DIA)
Ø1.60
(.062 DIA)
3.18
(.125)
4.70
(.185)
15.75
0.40
3
(.015)
1.27
(.050)
7.00
(.275)
(.620)
4.70 13.00
7.00
(.275)
(.511)(.185)
0.60
(.023)
8.20
(.322)
15.70
(.618)
3.18
(.125)
Ø3.10 Ø5.20
(.122 DIA) (.204 DIA)
3.804.10
(.161) (.149)
EPOXY
1
3
2
15.75
(.620)
19.50
(.767)
11.50
0.60
(.023)
1 2 3
4.70
(.185)
(.452)
13.20
(.519)
4.10
4.10 17.80
(.161)
(.700)(.161)
0.40
(.015)
12.00
(.472)
2.00
2.50 Maxi
(.098 MAX) (.078)
EPOXY
1.27
(.050)
11.50
(.452)
12.00
(.472)
4.75
(.187)
4.70
3.18
(.125)
(.185)
4.75
(.187)
Ø1.60
(.062 DIA)
Ø1.60
(.062 DIA)
4.70
4.70
4.75
(.187)
15.75
(.185)
(.185)
(.620)
Page 9
APEM www.apem.com B-81
18000 series
Snap-action momentary pushbutton switches
B
X438 Plain bushing Ø 6,25 mm (.246). Height 7,2 mm (.283) - without
shoulder.
X371 Plain bushing Ø 6,25 mm (.246) (instead of standard threaded
bushing).
X372 Shorter threaded bushing Ø 6,35 (1/4). Height 7 mm (.274).
X386 Threaded bushing Ø 6,35 mm (1/4) to replace plain bushing
on models W - WW and Y.
X371
X372
X386
X438
SPECIAL OPTIONS (continued)
CAPS
+ U...
U900
U1140 U1720
U480 U630
U2020
U2430
Caps for Ø 4 (.157) plungers (-13, -3)
Square
Square
(.157)
(.196)
(.129)
4.00
3.30
Ø5.00
(.250)
(.314)
(.118)
3.00
6.35
Ø8.00
(.118)
(.370)
(.250)
3.00
6.35
Ø9.40
(.452 SQ)
(.157)
(.196)
4.00
3.00
11.50x11.50
(.590 DIA)
(.393)
(.118)
3.00
10.00
Ø15.00
(.118)
(.393)
(.295)
Ø10.00
7.50
3.00
(.236)
(.452 SQ)
(.195)
6.00
5.00
11.50x11.50
Cap colours
Replace last "0" by number
1 blue 5 yellow
1/4 dark blue 6 red
2 black 7 ivory
3 green 7/1 white
4 grey 9 orange
Ø6.25
(.246 DIA)
Ø6.35-40UNS
7.00
(.275)
7.20
(.283)
(1/4-40UNS
Ø6.25
(.246 DIA)
1.00
(.039)
6.00
(.236)
Ø6.35-40UNS
9.00
(.354)
(1/4-40UNS
1.00
1.00
(.039)
(.039)
Page 10
B-82 APEM www.apem.com
18000 series
Snap-action momentary pushbutton switches
B
U2400 U2510
U2130 U2900
U3400
U910
U2340
Caps for Ø 3,1 (.122) plungers (-5, -6)
Square Square
(.157)
(.129)
(.196 DIA)
3.30
4.00
Ø5.00
(.250)
(.118)
(.314 DIA)
3.00
6.35
Ø8.00
(.295)
(.118)
(.393 DIA)
3.00
7.50
Ø10.00
(.157)
(.106)
(.452 SQ)
4.00
2.70
11.50x11.50
(.452 SQ)
(.196)
(.236)
5.00
6.00
11.50x11.50
(.370 DIA)
(.250)
(.129)
3.30
6.35
Ø9.40
(.393)
(.137)
(.590 DIA)
10.00
3.50
Ø15.00
CAPS (continued)
+ U...
U910 U2340
Caps for 18800 and 18800X662 models
Cap colours
Replace "0" by
number
1 blue
1/4 dark blue
2 black
3 green
4 grey
5 yellow
6 red
7 ivory
7/1 white
9 orange
Square Square
(.157)
(.106)
(.452 SQ)
4.00
2.70
11.50x11.50
(.452 SQ)
(.196)
(.236)
5.00
6.00
11.50x11.50
Page 11
APEM www.apem.com B-83
18000 series
Snap-action momentary pushbutton switches
B
(.161)
2.00
(.078)
4.10
4.10
(.161)
(.078)
2.00
U1200
U1210
U3200
For snap-in models (18800 - 18800X662)
For bracket mounting models
(18200Y & 18200YX624)
Bezel colours
Replace last
"0" by number
1 blue
1/4 dark blue
2 black
3 green
4 grey
5 yellow
6 red
7 ivory
7/1 white
9 orange
For LED Ø 5 - not supplied
BEZELS
+ U...
STANDARD PANEL MOUNTING
Panel thickness with bezel : 1 mm (.039) to 2,5 mm (.098)
18800 + U910 + U1200 18800 + U910 + U1210
U840
U825
U1636
DRESS NUTS
For models with threaded bushing (18500 - 18700 - 18200 - 18900)
Chrome plated - Order separately.
For cap U480 and U2900
For caps U630 and U3400For caps U1140 and U2510
(.322 DIA)
(.500 DIA)
(1/4-40UNS)
(.322)
(.244)
Ø12.70
Ø8.20
6.20
8.20
Ø6.35-40UNS
(.413 DIA)
(.531 DIA)
(.314)
(.228)
Ø10.50
Ø13.50
5.80
8.00
Ø6.35-40UNS
(1/4-40UNS)
(.610 DIA)
(.728 DIA)
Ø18.50
Ø15.50
Ø6.35-40UNS
(1/4-40UNS)
8.00
(.314)
(.228)
5.80
19.50
15.70
(.618)
(.767)
12.10
(.476)
2.00
12.10
(.078)
(.476)
Ø7.10
(.476) (.078)
9.75
(.383)
(.279 DIA)
13.20
(.519)
12.10
(.476)
28.00
(1.102)
15.70
(.618)
2.00
12.10
5.00
(.196)
Ø5.00
(.196 DIA)
19.50
(.767)
4.80
(.188)
15.70
(.618)
12.10
(.476)
2.00
(.078)
12.10
(.476)
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