2
TOGGLE SWITCHES
Military Purpose Toggle Switches
DESCRIPTION
Eaton’s Military Purpose switches
are designed to meet the
requirements of MIL-S-83731 or
JAN-S-23. Sealed Switches have
a silicone rubber lever seal
assembled between the lever and
the bushing to resist the entrance
of contaminants such as dust,
sand or water into the
contact structure.
The switch mechanisms are
completely enclosed to resist the
entrance of contaminants into the
switch. All metal parts are plated
to resist corrosion. The Heavy
Duty Switches are offered in both
Standard Toggle Lever and Lever
Lock versions. Circuit
designations are stamped on the
side of each switch.
Medium Duty
Quick-make/Quick break,
wiping action.
Contact Material:
Heavy Duty
Movable — Silver plated copper
with fine or coin silver contact
face button.
Stationary — Copper with fine or
coin silver contact face button.
Medium Duty
Movable — Copper silver plated.
Stationary — Bronze silver plated.
SPECIFICATIONS
Ratings:
See selection table.
Circuits:
1PST, 1PDT, 2PST, 2PDT, 1P3T
(ON-ON-ON), 4PST and 4PDT.
Maintained and momentary action.
Contact Action:
Heavy Duty
Slow-make/Slow-break
butt contact.
AC/DC RATED (MEDIUM DUTY) MIL-S-83731 SWITCHES SELECTION TABLE
Circuit with Toggle in
Rating
Poles
and
Throw
UP
Position
CENTER
Position
DOWN
Position
(Keyway)
SINGLE POLE
Q
Q
Q
Q
Q
(BOLD FACE TYPE INDICATES ITEMS NORMALLY IN DISTRIBUTOR STOCK)
CATALOG NUMBERS
BASE
CIRCUIT
SEE
PAGE 4.28
Dimension “A”
mm (inches)
Dimension “B”
mm (inches)
Military or JAN (ST)
Solder Lug Terminals
MIL-S-83731
With Sealed Lever
SINGLE POLE
Catalog
Number
8261K22
8261K29
8261K30
8261K23
8261K26
8262K22
8262K29
8262K30
8262K23
8262K26
1 P S.T.
.
1 P D.T.
.
ON
ON
OFF
ON
ON
ON
ON
OFF
ON
ON
NONE
NONE
NONE
NONE
NONE
DOUBLE POLE
NONE
NONE
NONE
NONE
NONE
OFF
OFF*
ON*
ON
ON*
OFF
OFF*
ON*
ON
ON*
A
B
—
—
—
23.80 (.937)
23.80 (.937)
—
—
—
23.80 (.937)
23.80 (.937)
23.01 (.906)
23.01 (.906)
23.01 (.906)
—
—
23.01 (.906)
23.01 (.906)
23.01 (.906)
—
—
MS25098-22
MS25098-29
MS25098-30
MS25098-23
MS25098-26
DOUBLE POLE
MS25100-22
MS25100-29
MS25100-30
MS25100-23
MS25100-26
W
W
W
E
E
2 P.S.T.
2 P D.T.
.
C
D
* Momentary Contact.
CURRENT RATINGS
Code
From
Selection
Table
Q
W
E
CURRENT CAPACITY IN AMPERES PER POLE
Part
Number
All MS25098
MS25100-22, 29, 30
MS25100-23, 26
125V ac, 60 Hz
Resistive
Load
3.0
3.0
1.0
Inductive
Load
1.5
1.5
1.0
2.24
Terminal Types:
Heavy Duty
MIL-S-83731 Types
Screw Terminals — Brass
designed to accept #6-32 x
6.35mm (.250″) pan head
(Cat. No. 11-1893)
screws
and Si bronze #6 Helical
lockwasher
(Cat. No. 16-1096).
Furnished unassembled.
Terminal screws are tin dipped
to facilitate soldering if required.
Heavy Duty Jan-S-23 Types
Screw Terminals — Brass
designed to accept
#6-32 x 4.78mm
(.188″) binding head
(Cat. No. 811-2)
screws.
Furnished unassembled.
Solder Lug Terminals —
Tintillate plated brass.
Medium Duty
MIL-S-83731 Types
Solder Lugs — Brass silver
plated furnished with
2.39mm (.094″) dia. hole.
Base Material:
Thermoset molding material.
Mounting Means:
Threaded Bushing —
11.89mm (.468″)dia.,
32 threads/inch.
Keyway — 1.73 x .89mm
deep (.068 x .035″ deep) —
provides anti-rotation feature.
Hardware Supplied —
MIL-S-83731 Types:
2 hexagon facenuts
(Cat. No. 15-966-6),
1 locking ring
(Cat. No. 29-761)
and
1 internal tooth lockwasher
(Cat. No. 16-886).
Furnished unassembled.
Jan-S-23 Types:
2 hexagon facenuts
(Cat. No. 15-966-6).
Furnished unassembled.
Dielectric:
1000V RMS minimum.
Operating
Temperature Range:
-17.8°C to +65.6°C
(0°F 10 +150°F).
8261K22
Medium Duty
2
DIMENSIONS
APPROXIMATE IN MM (INCHES)
1PDT MAINTAINED ACTION (SOLDER LUG)
14˚
14˚
17.27
(.680)
1.78
(.070)
8262K22
Medium Duty
1.01 (.040)
17.45
(.687)
11.89
(.468)
15/32-32NS-2A
Dim. A
23.80
(.937)
Dim. B
23.01
(.906)
1
2
3 (Ref.)
2.03 (.08) Dia. end terminal
31.75
(1.25)
2.29 (.09) Dia. center terminal
2PDT MAINTAINED ACTION (SOLDER LUG)
14˚
14˚
17.27
(.680)
1.78
(.070)
8801K22
Heavy Duty
17.45
(.687)
11.89
(.468)
15/32-32NS-2A
4
5
1.01 (.040)
6 (Ref.)
Dim. A
23.80
(.937)
Dim. B
23.01
(.906)
1
2
3 (Ref.)
2.03 (.080) Dia. end terminal
31.75
(1.25)
2.29 (.090) Dia. center terminal
8820K16
Heavy Duty
2.25
2
TOGGLE SWITCHES
Military Purpose Toggle Switches
(continued)
AC Rated (Heavy Duty) MIL-S-83731 Switches with Lever Seal
AC RATED (HEAVY DUTY) MIL-S-83731 SWITCHES SELECTION TABLE
Circuit with Toggle in
Rating
Poles
and
Throw
UP
Position
CENTER
Position
DOWN
Position
(Keyway)
ONE POLE
Q
Q
W
W
W
W
Q
Q
W
W
W
(BOLD FACE TYPE INDICATES ITEMS NORMALLY IN DISTRIBUTOR STOCK)
CATALOG NUMBERS
BASE
CIRCUIT
SEE
PAGE 4.28
Bushing Length
“A” mm (inches)
Lever Length
“B” mm (inches)
MS Part
Number
ONE POLE
Screw Terminals
with Sealed Lever
Catalog
Number
8801K22
8801K23
8813K17
8813K18
8811K18
8811K17
8800K16
8810K15
8804K13
8812K14
8809K16
8822K20
8822K21
8828K13
8828K12
8826K14
8826K15
8820K16
8824K14
8830K13
8834K5
8832K6
8860K4
8860K5
8860K6
8860K7
}
8860K8
}
8860K9
}
7660K12
7660K13
7668K7
7666K9
7666K6
7662K7
7664K5
7674K5
7672K5
7670K6
1 P S.T.
.
ON
ON
ON
ON
NONE
OFF
ON
ON
ON
ON*
ON
ON
ON
ON
ON
NONE
OFF
ON
ON
ON
ON*
ON
ON
I
ON
I
ON*
I
ON
I
ON
I
ON*
I
ON
ON
ON
NONE
OFF
ON
ON
ON
ON*
ON
NONE
OFF
NONE
OFF*
OFF
NONE
OFF
NONE
NONE
OFF
OFF
TWO POLE
NONE
OFF
NONE
OFF*
OFF
NONE
OFF
NONE
NONE
OFF
OFF
ON
ON
ON
ON
ON
ON
O
O
O
{
{
{
OFF
NONE
OFF*
NONE
ON*
ON*
ON
ON
ON*
ON*
ON*
OFF
NONE
OFF*
NONE
ON*
ON*
ON
ON
ON*
ON*
ON*
ON
P
ON*
P
ON*
P
ON
P
ON*
P
ON*
P
OFF
NONE
NONE
ON*
ON*
ON
ON
ON*
ON*
ON*
A
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
11.89 (.468)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
TWO POLE
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
FOUR POLE
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
17.45 (.687)
MS35058-22
MS35058-24
MS35058-29
MS35058-25
MS35058-28
MS35058-30
MS35058-21
MS35058-23
MS35058-26
MS35058-27
MS35058-31
MS35059-22
MS35059-24
MS35059-29
MS35059-25
MS35059-28
MS35059-30
MS35059-21
MS35059-23
MS35059-26
MS35059-27
MS35059-31
MS25201-4
MS25201-5
MS25201-6
MS25201-7
MS25201-8
MS25201-9
—
MS25068-24
MS25068-25
MS25068-28
—
MS25068-21
MS25068-23
MS25068-26
MS25068-27
MS25068-31
1 P D.T.
.
B
E
E
R
R
R
R
E
E
R
R
R
T
T
T
T
T
T
2 P S.T.
.
C
2 P D.T.
.
D
1 P 3.T
.
in a
2P Base
See
Diagram
On Page 4.28
FOUR POLE
Y
Y
U
U
U
Y
Y
U
U
U
4 P S.T.
.
NONE
OFF
OFF*
OFF
NONE
OFF
NONE
NONE
OFF
OFF
E
4 P D.T.
.
F
* Momentary Contact.
CURRENT RATINGS
Code
From
Selection
Table
Q
W
E
R
T
Y
U
CURRENT CAPACITY IN AMPERES PER POLE
Switch
Type of
Operation
Maintained
Momentary
Maintained
Momentary
ON-ON-ON
Maintained
Momentary
28V dc
Lamp
Load
7
5
7
5
5
5
4
Resistive
Load
25
20
20
18
18
20
18
Inductive
Load
15
10
15
10
10
12
10
Lamp
Load
—
—
—
—
2
—
—
115V ac, 60 Hz
Resistive
Load
10
10
20
11
11
—
—
Inductive
Load
10
7
—
—
8
—
—
Lamp
Load
3
—
4
—
2
4
2
115V ac, 400 Hz
Resistive
Load
10
—
20
—
11
20
11
Inductive
Load
10
—
15
—
8
15
5
MS35058
MS35059
MS25201
MS25068
I
Across terminals 2-3 and 5-6.
O
Across terminals 1-2 and 5-6.
P
Across terminals 1-2 and 4-5.
{
Across terminals 2-3 and 4-5.
}
For “INDEPENDENT ON-ON-ON” circuit arrangement
see page 4.28.
2.26
DIMENSIONS
APPROXIMATE IN MM (INCHES)
ONE POLE
MAINTAINED & MOMENTARY ACTION
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
15/32-32 Thds.
15.75
(.620)
A
B
TWO POLE
MAINTAINED ACTION
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
15/32-32 Thds.
19.05
(.750)
A
33.27
(1.310)
B
2
28.45
(1.120)
26.42
(1.040)
8858K39
26.92
(1.060)
Heavy Duty
#6-32 x 4.57 (.180)
Long Pan Head Screws
#6-32 X 6.35 (.250)
Pan Head Screws
TWO POLE
MOMENTARY ACTION & 3 “ON” CIRCUITS
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
FOUR POLE
MAINTAINED & MOMENTARY ACTION
15/32-32 Thds.
B
15/32-32 Thds.
36.32
(1.430)
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
B
19.05
(.750)
8859K44
A
Heavy Duty
A
33.27
(1.310)
30.48
(1.200)
33.53
(1.320)
31.75
(1.250)
#6-32 X 6.35 (.250)
Pan Head Screws
#6-32 X 6.35 (.250)
Long Pan Head Screws
7301K36
Heavy Duty
7310K38
Heavy Duty
2.27
2
TOGGLE SWITCHES
Military Purpose Toggle Switches
(continued)
AC Rated (Heavy Duty) MIL-S-83731 Lever Lock Switches with Lever Seal
AC RATED (HEAVY DUTY) MIL-S-83731 LEVER LOCK SWITCHES SELECTION TABLE
Circuit with Toggle in
Rating
Poles
and
Throw
UP
Position
CENTER
Position
DOWN
Position
(Keyway)
ONE POLE
Q
Q
Q
Q
Q
Q
(BOLD FACE TYPE INDICATES ITEMS NORMALLY IN DISTRIBUTOR STOCK)
CATALOG NUMBERS
BASE
CIRCUIT
SEE
PAGE 4.28
Lever Lock
Bushing Style
(see below)
Bushing Length
“A” mm (inches)
Lever Lock Length
“B” mm (inches)
Screw Terminals
with Sealed Lever
MS Part
Number
Catalog
Number
8857K47
8857K48
8857K49
8857K40
8857K45
8857K44
8858K39
8858K40
8858K44
8859K44
ONE POLE
←OFF→
←OFF→
NONE
ON
←ON→
←ON→
←ON→
ON
←ON→
←ON→
A
3
4
5
2
3
4
1
2
4
4
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
14.27 (.562)
25.40 (1.000)
25.40 (1.000)
25.40 (1.000)
25.40 (1.000)
25.40 (1.000)
25.40 (1.000)
TWO POLE
C
25.40 (1.000)
25.40 (1.000)
25.40 (1.000)
FOUR POLE
F
25.40 (1.000)
MS25127-E3
MS25126-A1
MS25126-B1
MS25126-E3
MS25125-C2
MS25125-E2
MS25125-J4
MS25125-B1
MS25125-C3
MS25125-E3
1 P S.T.
.
ON
→ON→
→ON→
ON
ON
→ON→
→ON→
ON
→ON→
→ON→
NONE
NONE
←OFF→
←OFF→
NONE
NONE
TWO POLE
←OFF→
←OFF→
NONE
FOUR POLE
NONE
1 P D.T.
.
B
W
W
W
2 P.D.T.
E
4 P D.T.
.
←
Indicates direction against which lever is locked.
CURRENT RATINGS
Code
From
Selection
Table
Q
W
E
CURRENT CAPACITY IN AMPERES PER POLE
Switch
Type of
Operation
Maintained
Maintained
Maintained
28V dc
Lamp
Load
5
7
5
Resistive
Load
20
20
20
Inductive
Load
15
15
15
Lamp
Load
—
—
—
115V ac, 60 Hz
Resistive
Load
—
—
—
Inductive
Load
—
—
—
Lamp
Load
3
4
4
115V ac, 400 Hz
Resistive
Load
10
20
20
Inductive
Load
10
15
15
MS25125
MS25126
MS25127
DIMENSIONS
APPROXIMATE IN MM (INCHES)
SINGLE POLE
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
15/32-32 Thds.
15.75
(.620)
B
22.86
(.900)
A
28.96
(1.140)
#6-32 Screws
28.45
(1.120)
DOUBLE POLE
Keyway 0.76 (.030) Deep x 1.52 (.060) Wide
B
15/32-32 Thds.
B
A
A
31.75
(1.250)
33.27
(1.310)
FOUR POLE
Keyway
0.76 (.030) Deep
1.52 (.060) Wide
15/32-32
Thds.
33.27
(1.310)
#6-32 Screws
40.39
(1.590)
33.27
(1.310)
#6-32
Screws
LEVER LOCK BUSHING STYLES
Q
STYLE 1
STYLE 2
STYLE 3
STYLE 4
STYLE 5
Locked In
Three Positions
Locked In
Center Positions
Locked In
Keyway Side
Locked Out Of
Center Position
Locked In Center And
Side Opposite Keyway
Q
For pictoral representation only — keyway on right hand side.
2.28
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