300 & 400 series
Miniature pushbutton switches
Distinctive features and specifications
K
Dry circuit through power ratings .
K
Compact size.
K
Panel, panel & PC and PC mounting models.
B
• Max. current/voltage rating with resistive load :
- gold over nickel plated brass contacts : 0.4VA - 20V Max.
- coin silver contacts : 1A 125VAC or 28VDC, 0.5A 250VAC, 3A
125VAC or 28VDC,
• Initial contact resistance : 10 milliohms max. at 3VDC, 0.1 Amp.
• Insulation resistance : 10,000 MΩ min.
• Dielectric strength : 1,000 Vrms min at sea level.
• Electrical life :
Model
300
300
300
400
400
400
Contacts
Rating
Number of cycles
250,000
250,000
40,000
10,000
40,000
10,000
ELECTRICAL SPECIFICATIONS
(Q) coin silver
(Q) coin silver
(B) gold
(Q) coin silver
(Q) coin silver
(B) gold
1A 125VAC or 28 VDC
3A 125VAC or 28VDC
0.4VA max. at 20V
• Base: diallyphthalate (DAP)
• Actuator: nylon
• Bushing: nickel plated brass
• Contacts
B:
Gold
Q:
Coin silver
• Terminal seal: epoxy
• Spring bracket: stainless steel
• Support bracket: brass or tin
plated steel
• Bezel and cap: nylon
MATERIALS
1A 125VAC or 28 VDC
3A 125VAC or 28VDC
0.4VA max. at 20V
•Operating temperature : -30°C to +85°C
GENERAL SPECIFICATIONS
AGENCY APPROVAL
Availability:
All models with
coin silver contacts (Q) only.
:
Marking:
To order switches
marked UL, complete
appropriate box on ordering
format.
APEM
www.apem.com
300 & 400 series
Miniature pushbutton switches
Overview
E
SERIES
301
302
305
306
401
402
T1
None
Standard 15/32” thd’d.
(see dwg - 301, 303 &
305 only).
Bushing
B
Gold
Q
Coin Silver
Contact material
J81
Bezel & Cap
Snap-in
B
S
Standard
Long (see dwg. - specify for
all models with bezels-not
available for 306)
Actuators
Z
Solder lug
C
Printed circuit board
V-1
Right angle p.c.
terminals for 301,
302, 305, 401 & 402
only. (see dwg)
Terminations
E
Sealing
Epoxy
2
8
Bezel color
White
Black
2
6
Cap Color
Red
Black
Agency approval
/UL
UL Approval
No approval
(Q contact material only)
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 bracketed numbers.
NOTICE
: please note that not all combinations of above numbers are available. Refer to the following pages for further
information.
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APEM
300 & 400 series
Miniature pushbutton switches
Terminations
•
Solder lug or straight PC
terminals
•
Epoxy sealed terminals standard
1.02
(.040)
Z
5.59
(.221)
C
2.03
(.080)
4.80
(.189)
6.86
(.271)
2.54
(.100)
2.54
(.100)
1.27
(.050)
1.17
(.046)
B
Normally open with overtravel: 301
301ZQE
301ZBE
Normaly Open
5.61 10.90 6.35 4.52
(.221) (.429) (.250) (.178)
Solder lug terminals
Ø4.06
(Ø.160)
1/4-40 UNS
PC terminals
301CQE
301CBE
Normaly Open
Normaly Open
Ø9.40
(Ø.370)
Normaly Open
Normally open no overtravel: 302
Solder lug terminals
302ZQE
302ZBE
Normaly Open
Actuation force: 8.5oz.
`4oz.
Total travel: 2.7 (.110)
Over travel: 0.51 (.020)
0.38
(.015)
5.13
(.202)
Ø4.06
(Ø.160)
5.61 8.10 6.35 3.72
(.221) (.319) (.250) (.146)
1/4-40 UNS
Ø9.40
(Ø.370)
PC terminals
302CQE
302CBE
Normaly Open
Normaly Open
Normaly Open
Total travel: 1.52 (.060)
0.38
(.015)
5.13
(.202)
Normally open with greater overtravel: 305
Solder lug terminals
305ZQE
305ZBE
Normaly Open
Normaly Open
Normaly Open
Normaly Open
Actuation force: 10oz.
`4oz.
Ø4.06
(Ø.160)
5.61 10.90 6.35 4.52
(.221) (.429) (.250) (.178)
1/4-40 UNS
PC terminals
305CQE
305CBE
Ø9.40
(Ø.370)
Total travel: 2.7 (.110)
Over travel: 1.20 (.075)
Actuation force: 8oz.
`4oz.
0.38
(.015)
5.13
(.202)
APEM
www.apem.com
300 & 400 series
Miniature pushbutton switches
Normally open with sealed contact area: 306
Solder lug terminals
306ZQE
306ZBE
6.35 8.92
(.250) (.351)
Ø4.06
(Ø.160)
5/16-24 UNF
Normaly Open
Normaly Open
Normaly Open
Normaly Open
306CQE
B
306CBE
Total travel: 8.74 (.310)
Over travel: 6.35 (.250)
Actuation force at full travel: 9oz.
5.61
(.221)
20.00
(.787)
PC terminals
Ø9.40
(Ø.370)
0.38
(.015)
5.13
(.202)
Normally open snap-action mechanism:400
6.35 5.28
(.250) (.208)
Ø4.06
(Ø.160)
401
402
ON
-
OFF
OFF
Pretravel: 0.66 (.026)
Actuation travel: 2.60 (.106)
Total traval: 3.48 (.137)
Over travel: 0.79 (.031)
Actuation force: 22oz.
1/4-40 UNS
11.91
(.469)
MOM -
Ø9.53
(Ø.375)
5.60
(.221)
0.38
(.015)
5.13
(.202)
L
Snap-in bezel
For complete part number, and full list of options see part number breakdown at the beginning of this section
Model no.
301
302
305
401
402
Dim A
2.74 (.108)
2.16 (.085)
2.74 (.108)
3.68 (.145)
3.68 (.145)
Dim B
23.60 (.929)
20.75 (.817)
23.60 (.929)
29.00 (1.142)
29.00 (1.142)
10.13
(.399)
10.13
(.399)
A
17.40
(.685)
7.16
(.282)
B
2.29
(.090)
15.62
(.615)
Right angle terminal with bracket
Model no.
301
302
305
401
402
Dim B
11.15 (.439) 13.97(.550) 16.51 (.650)
8.30 (.327) 11.43 (.450) 13.97(.550)
3.18 9.40
(.125) (.370)
9.40
(.370)
5.08
(.200)
Dim C
Dim D
Ø1.91
(Ø.075)
C
D
6.15
(.242)
B
16.59 (.653) 19.05 (.750) 21.59 (.850)
16.59 (.653) 19.05 (.750) 21.59 (.850)
4.70
(.185)
11.15 (.439) 13.97(.550) 16.51 (.650)
1.17
(.046)
5.08
(.200)
0.41
(.016)
C
D
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APEM
300 & 400 series
Miniature pushbutton switches
T1 option with 15/32 bushing
Model no.
301
305
Dim A
A
Ø8.40
(.330 DIA)
6.35 (.250)
6.35 (.250)
9.25
(.365)
Ø11.90-32UNS
(15/32-32UNS)
Ø9.40
(.370 DIA)
EPOXY
16.65
(.655)
5.60
(.220)
0.40
(.015)
5.30
(.209)
T1 option availible only for 301 and 305 models
B
Option S long actuator
Ø4.06
(Ø.160)
5.28
(.209)
6.81
(.269)
1/4-40 NS
1/4-40 NS
Ø4.06
(Ø.160)
6.10
(.241)
Ø4.06
(Ø.160)
4.78
(.188)
1/4-40 NS
4.78
(.188)
301 & 305
302
401 & 402
Panel cut-outs
R0.13
(R.005)
MAX.
13.00
(.512)
6.35
( .251)
Ø11.89
(Ø.468)
1/4” threaded
bushings
15/32” threaded
bushings
Snap-in bezel
15.24
(.600)
UL
For power circuits - coin silver
UL option
RATING: 0.5 Amps at 125 VAC (75% power factor).
Underwriter Laboratories file no. E66367. Note - applicable only to terminations with coin
silver contacts (Q option).
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APEM
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