21000N series
Low profile toggle switches
Distinctive features and specifications
K
Available with threaded or plain bushing, both with
mounting plate
K
Low profile - same height for single and double pole
K
Wave solderable only
ELECTRICAL SPECIFICATIONS
• Max. current/voltage rating with resistive load :
- silver contacts (A) : 4A 30VDC
- gold plated brass contacts (LD) : 100mA 30VDC
• Minimum load :
- silver contacts (A) : 100mA 10V
- gold plated brass contacts (LD) : 10µA 5VDC - 10mA 50mV
• Initial contact resistance : 20 mΩ max.
• Insulation resistance : 1.000 MΩ min. at 500VDC
• Dielectric strength :
1.000 Vrms 50 Hz min. between terminals
2.000 Vrms 50 Hz min. between poles
2.000 Vrms 50 Hz min. between terminals and frame
• Electrical life at full load :
- silver contacts (A) : 20.000 cycles
- gold plated brass contacts (LD) : 50.000 cycles
• Low level or mechanical life : 100.000 cycles
MATERIALS
GENERAL SPECIFICATIONS
• Case and cover : PBT
• Actuator : brass, nickel plated
• Bushing : brass, nickel plated
• Contacts
A
: silver
LD
: brass, gold plated
• Operating temperature : -40°C to +85°C
APEM
www.apem.com
1
21000N series
Low profile toggle switches
Overview
21
N
SERIES
Terminals and bushings
1
2
Straight PC terminals,
threaded bushing
Straight PC terminals,
plain bushing
Number of poles
3
4
Single pole
Double pole
6
9
7
8
2
Electrical functions
ON
ON
MOM
ON
ON
-
OFF
OFF
OFF
-
ON
ON
MOM
MOM
MOM
Version
N
For all models.
Contact materials
A
LD
Silver
Brass, gold plated
Finish
Blank
Bright chrome
finish
G
Black finish on
bushing, actuator and
hardware.
Sealing
Blank
Epoxy sealed
terminals standard
K
Sealing by O-ring
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.
Mounting accessories
: standard hardware supplied with all models with threaded bushing : 2 hex nuts 8 mm (.314) across flats.
Standard and special hardware available are presented in section I.
Packaging unit
: 50 pieces for SP models, 25 pieces for DP.
2
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APEM
21000N series
Low profile toggle switches
•
Epoxy sealed terminals standard
• 1 and 2 pole configurations
MODEL
STRUCTURE
11.00
(.433)
3.60
(.141)
10.16
(.400)
5.08
(.200)
Threaded bushing - double pole
III
2-3
5-6
21146N
21149N
21147N
21148N
21142N
II
I
1-2
4-5
II
I
2.54
(.100)
21.00
(.826)
Ø6.35-40UNS
(1/4-40UNS)
10.16
(.400)
5.08
(.200)
0.60
(.023)
11.00
(.433)
3.60
(.141)
10.16
(.400)
5.08
(.200)
APEM
www.apem.com
5.08
(.200)
Ø6.25
(.246 DIA)
0.60
(.023)
2.54
(.100)
10.16
(.400)
21236N
21239N
21237N
21238N
21232N
ON
-
ON
ON OFF ON
MOM OFF MOM
ON OFF MOM
ON
- MOM
Ø3.00
(.118 DIA)
6.75
(.265)
EPOXY
Ø1.10
(.043 DIA)
10.16
(.400)
0.50
(.019)
III
11.50
(.452)
10.16
(.400)
22˚
III
2-3
II
I
2.54
(.100)
II
I
1-2
0.60
(.023)
Plain bushing - single pole
7.00
(.275)
17.00
(.669)
11.30
(.444)
5.08
(.200)
5.08
(.200)
10.16
(.400)
ON
-
ON
ON OFF ON
MOM OFF MOM
ON OFF MOM
ON
- MOM
Ø3.00
(.118 DIA)
6.75
(.265)
EPOXY
Ø1.10
(.043 DIA)
3.60
(.141)
0.60
(.023)
III
11.50
(.452)
10.16
(.400)
10.16
(.400)
10.16
(.400)
22˚
0.50
(.019)
7.00
(.275)
17.00
(.669)
11.30
(.444)
5.08
(.200)
Ø6.35-40UNS
(1/4-40UNS)
0.60
(.023)
2.54
(.100)
10.16
(.400)
21136N
21139N
21137N
21138N
21132N
ON
-
ON
ON OFF ON
MOM OFF MOM
ON OFF MOM
ON
- MOM
Ø3.00
(.118 DIA)
6.75
(.265)
EPOXY
Ø1.10
(.043 DIA)
0.50
(.019)
III
11.50
(.452)
10.16
(.400)
10.16
(.400)
III
2-3
II
I
22˚
2.54
(.100)
II
I
1-2
0.60
(.023)
Threaded bushing - single pole
7.00
(.275)
17.00
(.669)
11.30
(.444)
3
21000N series
Low profile toggle switches
Plain bushing - double pole
III
2-3
5-6
21246N
21249N
21247N
21248N
21242N
II
I
1-2
4-5
II
I
7.00
(.275)
17.00
(.669)
11.30
(.444)
2.54
(.100)
21.00
(.826)
Ø6.25
(.246 DIA)
10.16
(.400)
5.08
(.200)
0.60
(.023)
PANEL CUT
-
OUT
PCB MOUNTING
POSITIONS AND CONNECTIONS
III
II
I
Bottom view
2.3
5.6
2
5
4
3
1
2
5
6
4
3
1
1.2
4.5
6
Function 6
Function 9
Function 7
Function 8
Function 2
ON
ON
MOM
ON
ON
-
OFF
OFF
OFF
-
ON
ON
MOM
MOM
MOM
4
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3.00Maxi
(.118MAX)
4.10
(.161)
Ø6.50
(.255 DIA)
7.80
(.307)
2
5
4
3
1
6
5.08
(.200)
5.08
(.200)
10.16
(.400)
ON
-
ON
ON OFF ON
MOM OFF MOM
ON OFF MOM
ON
- MOM
Ø3.00
(.118 DIA)
6.75
(.265)
EPOXY
Ø1.10
(.043 DIA)
3.60
(.141)
10.16
(.400)
0.60
(.023)
III
11.50
(.452)
10.16
(.400)
APEM
10.16
(.400)
22˚
0.50
(.019)
21000N series
Low profile toggle switches
CONTACT MATERIALS
A
LD
Silver
Brass, gold plated
FINISH
Blank
G
Bright chrome finish on actuator, nickel plating for bushing and hardware.
Black finish on bushing, actuator and hardware
SEALING
Epoxy sealed terminals are standard.
Blank
No sealing except standard.
1
K
O-ring
APEM
www.apem.com
2.8 Maxi
(.110 MAX)
Bushing internally sealed by one O-ring (version without washer U360).
Protects the switch against water and dust.
5
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