MICRO SWITCH Miniature Military-Grade Toggle Switch
TW Series
005431
Issue 2
Datasheet
FEATURES
DESCRIPTION
Honeywell MICRO SWITCH TW Series toggle switches are
military qualified to MIL-83731 specifications for sealed
and unsealed toggle switches. Quality construction features
include an available bonded seal between the toggle lever and
bushing for those applications where a sealing-related failure
cannot be tolerated.
The durable design of the TW Series toggle is well-suited for
many military, aerospace and other demanding applications
where space behind the panel is limited. These applications
include environments where the panels are subjected to
mechanical shock, vibration, dust, splashing or hose-directed
water, and temperature extremes.
MICRO SWITCH TW toggles feature a miniature militarygrade design with environmental sealing capabilities and can
be configured with a large selection of circuitries, electrical
terminations, lever and bushing designs, and contact material
options to satisfy a diverse range of applications.
VALUE TO CUSTOMERS
• MIL-DTL-83731 qualified switches available to meet military
specifications
• Environmental sealing availability enables switches to
withstand many demanding indoor and outdoor applications
• Miniature size (small footprint) for applications where
behind-the-panel space is at a minimum
• 2- and 3-position, maintained and momentary toggle action
to meet circuit and actuator requirements
Safety and Productivity Solutions
• MIL-DTL-83731 qualified switches are available to meet
military/aerospace specifications
• 1- and 2- pole options along with 2- and 3-position,
maintained and momentary toggle action
• Wide temperature range: -65 °C to 71 °C [-85 °F to 160 °F]
• 1/4 in and 15/32 in bushing diameters
• Standard, locking, & colored paddle levers
• Optional lever locks (pull-to-unlock) require two separate
actions to actuate
• Three popular termination options: screw, solder, and IWTS
(Integrated Wire Termination System)
• Silver alloy or gold-plated contacts
• Electrical endurance of 20,000 cycles at full load
POTENTIAL INDUSTRIAL APPLICATIONS
•
•
•
•
•
Military and commercial aircraft and helicopters
Aviation ground support equipment
Military land vehicles (track and wheeled vehicles)
Industrial machinery and construction equipment
Process control
DIFFERENTIATION
• Miniature size saves space and weight
• Variety of terminations, circuitries, and lever options for a
number of applications
PORTFOLIO
In addition the the TW Series, Honeywell offers six series of
MICRO SWITCH toggle switches including the TL Series, NT
Series, TS Series, ET Series, and AT Series.
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
Table 1. Specifications
Characteristic
Parameter
Description
miniature military-grade toggle switch
Sealing
qualified to MIL-DTL-83731
Operating temperature
-65 °C to 71 °C [-85 °F to 160 °F]
Actuators
standard, locking, special design, paddle
Action
2- or 3- position; momentary and maintained
Mounting
bushing 15/32 in (0.47 in) Ø; 1/4 in (0.25 in) Ø
Circuitry
SPDT, DPDT, SPST, DPST
Terminations
IWTS, solder (T and T2), quick connect (H58)
Contacts
fine silver or gold-plated
Amp rating
0.1 A to 5.0 A @ 0.5 Vdc to 28 Vdc
0.1 A to 5.0 A @ 0.5 Vac to 115 Vac
Approvals
UL, qualified to MIL-DTL-83781
Measurement
49,78 mm H x 14,61 mm W x 14,61 mm D [1.96 in H x 0.575 in W x 0.575 in D]
Table 2. Electrical Ratings (in amperes)
Volts
Resistive
Inductive
Lamp
30 Vdc
5
2
1
115 Vac
5
2
1
UL Code 117
5 A @ 125 Vac
TERMINAL CIRCUIT IDENTIFICATION
SPECIAL CIRCUITRIES
Terminal identifications are referred to in the order guides to
indicate which circuits are made in each toggle position (i.e.,
1-2 refers to circuit closure through terminals 1 and 2).
Catalog listings with -10, -50, and -70 suffix numbers, as
shown in the order guides, have special “on-on-on” circuits, as
illustrated below.
One Pole
Two Pole
-10 CIRCUITRY
No of
poles
Keyway Side Maint.
Position
Center Maint.
Position
Opposite Keyway
Maint. Position
2
TERMINALS
In addition to the solder terminal listings in the order guides,
IWTS (Integrated Wire Termination System) and quick connection versions are also available.
IWTS provides a reliable, serviceable unit and promotes maintainability since wiring bundles need not be disturbed. Leads
are quickly and easily assembled or removed with an insert-extract tool. A unique three-rib (grommet style) elastomer seal
protects the lead connections without potting. There are no
exposed metal terminals. Versions available that will accept
No. 20 wire with MS39029/1-101 contact pins. Connections
are resistant to shock, vibration, and high pull-out force.
2 sensing.honeywell.com
-50 CIRCUITRY
No of
poles
Keyway Side Maint.
Position
Center Maint.
Position
Opposite Keyway
Maint. Position
Center Maint.
Position
Opposite Keyway
Maint. Position
2
-70 CIRCUITRY
No of
poles
2
Keyway Side Maint.
Position
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
TW SERIES TWO-POSITION ORDER GUIDE
Table 3. Two-Position TW Series with 15/32 in Bushing
Circuits Made with
Toggle At:
No. of
poles
1
2
Terminals
Keyway
Position
Sealed Standard Toggle
Opposite
Keyway
Colored Paddle Lever***
Pull-to-Unlock Toggle
Catalog
Listing
Military
Number
Add
Suffix to
Standard
Toggle
Listing D
Military
Number**
Add Paddle
Color Suffix
to _
solder
OFF
2-3 ON
11TW1-2
MS27718-22-1
D, F, G
MS27720-22-1
11TW19-2_
solder
2-1 ON
2-3 ON
11TW1-3
MS27718-23-1
D, F, G
MS27720-23-1
11TW19-3_
solder
2-1 ON*
2-3 ON
11TW1-8
MS27718-26-1
F
MS27720-26-1
11TW19-8_
IWTS
2-1 ON
2-3 ON
111TW1-3
–
D, F, G
–
–
ITWS
2-1 ON*
2-3 ON
111TW1-8
–
F
–
–
solder
OFF
2-3, 5-6 ON
12TW1-2
MS27719-22-1
D, F, G
MS27721-22-1
12TW19-2_
solder
2-1, 5-4 ON
2-3, 5-6 ON
12TW1-3
MS27719-23-1
D, F, G
MS27721-23-1
12TW19-3_
solder
2-1, 5-4 ON*
2-3, 5-6 ON
12TW1-8
MS27719-26-1
F
MS27721-26-1
12TW19-8_
IWTS
2-1, 5-4 ON
2-3, 5-6 ON
112TW1-3
–
D, F, G
–
–
IWTS
2-1, 5-4 ON*
2-3, 5-6 ON
112TW1-8
–
F
–
–
* These positions are momentary. All others are maintained.
** Also add the appropriate suffix to the military number.
*** See page 8 for paddle lever colors
D
See page 8 for locking configurations.
Table 4. Two-Position TW Series with 1/4 in Bushing
Circuits Made with Toggle At:
No. of
poles
1
2
Terminals
Keyway Position
Opposite
Keyway
Unsealed Standard Toggle
Sealed Standard Toggle
Catalog Listing
Military Number
Catalog Listing
solder
OFF
2-3 ON
1TW1-2
MS27716-22-1
1TW101-2
solder
2-1 ON
2-3 ON
1TW1-3
MS27716-23-1
1TW101-3
solder
2-1 ON*
2-3 ON
1TW1-8
MS27716-26-1
1TW101-8
solder
OFF
2-3, 5-6 ON
2TW1-2
MS27717-22-1
2TW101-2
solder
2-1, 5-4 ON
2-3, 5-6 ON
2TW1-3
MS27717-23-1
2TW101-3
solder
2-1, 5-4 ON*
2-3, 5-6 ON
2TW1-8
MS27717-26-1
2TW101-8
* These positions are momentary. All others are maintained.
PULL-TO-UNLOCK OPTION
When ordering pull-to-unlock toggle listings (See page 8 for configurations), add the suffix letter shown in the chart on page 11 to the standard
toggle listing or the MS part number. For example, to order a 11TW1-2 pull-to-unlock toggle switch with the lever locked out of the center position,
Safety and Productivity Solutions
3
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
add the letter D (i.e., 11TW1-2D, MS27718-22-1D)
TW SERIES THREE-POSITION ORDER GUIDE
Table 5. Three-Position TW Series with 15/32 in Bushing
Circuits Made with Toggle At:
No. of
poles
1
Terminals
solder
2
Keyway
Position
2-1 ON
Center
Position
OFF
Sealed Standard Toggle
Opposite
Keyway
2-3 ON
Pull-to-Unlock Toggle
Colored Paddle Lever***
Add
Suffix to
Standard
Toggle
Listing D
Military
Number**
Add Paddle
Color Suffix
to _
Catalog
Listing
Military
Number
11TW1-1
MS27718-21-1
ALL
MS27720-21-1
11TW19-1_
MS27720-31-1
11TW19-5_
solder
2-1 ON*
OFF
2-3 ON
11TW1-5
MS27718-31-1
E, F, K, L,
M, N
solder
2-1 ON*
OFF
2-3 ON*
11TW1-7
MS27718-26-1
E, L, N
MS27720-27-1
11TW19-7_
IWTS
2-1 ON
OFF
2-3 ON
111TW1-1
–
ALL
–
–
–
E, F, K, L,
M, N
–
–
IWTS
2-1 ON*
OFF
2-3 ON
111TW1-5
IWTS
2-1 ON*
OFF
2-3 ON*
111TW1-7
–
E, L, N
–
–
solder
2-1, 5-4 ON
OFF
2-3, 5-6 ON
12TW1-1
MS27719-21-1
ALL
MS27721-21-1
12TW19-1_
solder
2-1, 5-4 ON*
OFF
2-3, 5-6 ON
12TW1-5
MS27719-31-1
E, F, K, L,
M, N
MS27721-31-1
12TW19-5_
solder
2-1, 5-4 ON*
OFF
2-3, 5-6 ON*
12TW1-7
MS27719-27-1
E, L, N
MS27721-27-1
12TW19-7_
IWTS
2-1, 5-4 ON
OFF
2-3, 5-6 ON
112TW1-1
–
ALL
–
–
IWTS
2-1, 5-4 ON*
OFF
2-3, 5-6 ON
112TW1-5
–
E, F, K, L,
M, N
–
–
IWTS
2-1, 5-4 ON*
OFF
2-3, 5-6 ON*
112TW1-7
–
E, L, N
–
–
* These positions are momentary. All others are maintained.
** Also add the appropriate suffix to the military number.
*** See page 8 for paddle lever colors
D
See page 8 for locking configurations.
Table 6. Three-Position TW Series with 1/4 in Bushing
Circuits Made with Toggle At:
No. of
poles
1
2
Keyway
Position
Center
Position
Opposite
Keyway
Unealed Standard Toggle
Sealed Standard Toggle
Catalog
Listing
Military
Number
Catalog Listing
2-1 ON
OFF
2-3 ON
1TW1-1
MS27716-21-1
1TW101-1
2-1 ON*
OFF
2-3 ON
1TW1-5
MS27716-31-1
1TW101-5
2-1 ON*
OFF
2-3 ON*
1TW1-7
MS27716-27-1
1TW101-6
2-1, 5-4 ON
OFF
2-3, 5-6 ON
2TW1-1
MS27717-21-1
2TW101-2
2-1, 5-4 ON*
OFF
2-3, 5-6 ON
2TW1-5
MS27717-31-1
2TW101-3
2-1, 5-4 ON*
OFF
2-3, 5-6 ON*
2TW1-7
MS27717-26-1
2TW101-8
* These positions are momentary. All others are maintained.
PULL-TO-UNLOCK OPTION
When ordering pull-to-unlock toggle listings (See page 8 for configurations), add the suffix letter shown in the chart on page 11 to the standard
toggle listing or the MS part number. For example, to order a 11TW1-7 pull-to-unlock toggle switch with the lever locked in the center position,
add the letter E (i.e., 11TW1-7E, MS27720-27-1E)
4 sensing.honeywell.com
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
Table 7. TW Series Switches with Special Circuitries
All two-pole, three-position TW switches are available with special “on-on-on” -10, -50, -70 circuitry options as shown below.
Circuits Made with Toggle At:
No. of
poles
2
Sealed Standard Toggle
Unsealed
Standard
Toggle
Sealed
Paddle Lever
Keyway
Position
Center
Position
Opposite
Keyway
15/32
Bushing
Catalog
Listing
1/4 Bushing
Catalog
Listing
1/4 Bushing
Catalog
Listing
15/32
Bushing
Catalog
Listing***
solder
2-1, 5-4 ON
2-1, 5-6 ON
2-3, 5-6 ON
12TW1-10
2TW101-10
2TW1-10
12TW19-10_
solder
2-1, 5-4 ON*
2-1, 5-6 ON
2-3, 5-6 ON
12TW1-50
2TW101-50
2TW1-50
12TW19-50_
solder
2-1, 5-4 ON*
2-1, 5-6 ON
2-3, 5-6 ON*
12TW1-70
2TW101-70
2TW1-70
12TW19-70_
Terminals
* These positions are momentary. All others are maintained.
*** Add color suffix from Table 8 on page 11.
Safety and Productivity Solutions
5
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
MICRO SWITCH TW SERIES 1-POLE STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
11TW1: Single pole, standard lever,
15/32 bushing, solder terminals
111TW1: Single pole, standard lever,
15/32 bushing, IWTS
14,6 [0.575]
max.
1TW1: Single pole, standard lever,
1/4 bushing, solder terminals
14,6 [0.575]
max.
28° ±4° total travel
Ø 6,1 [Ø 0.24]
Ø 6,1 [Ø 0.24]
Ø 2,79 [Ø 0.11]
13,6 [0.535]
max.
17,27 [0.68]
28° ±4° total travel
Sealed to prevent
entrance of liquid
or dust
1,83 x 0,76
[0.072 x 0.03]
deep keyway
15/32-32 UNS thread
to within 1,58 [0.062]
of shoulder
11,94 [0.47]
Sealed to prevent
entrance of liquid
or dust
17,27 [0.68]
1,83 x 0,76
[0.072 x 0.03]
deep keyway
12,95 [0.51] dia.
shoulder on bushing
15/32-32 UNS thread
to within 1,58 [0.062]
of shoulder
11,94 [0.47]
18,8 [0.74]
max.
32,5 [1.28]
max.
Ø 1,02 [Ø 0.04]
4,57 [0.175]
4,57 [0.175]
2,79 [0.11]
4,57 [0.175]
2,54 [0.10]
6,6 [0.26]
13,6 [0.535]
max.
14,6 [0.575]
max.
13,6 [0.535]
max.
3X termination
Colored paddle dimensions for
single pole TW toggles
3,56 [0.14]
Ø 9,53
[Ø 0.375]
Ø 10,87 [Ø 0.428]
17,0 [0.67]
25,4 [1.0]
28° ±4° total travel
2,29 [0.09] approx.
pullout to
change position
29,46 [1.16]
max.
6 sensing.honeywell.com
2,54 [0.10]
Ø 6,35
[Ø 0.25]
4,57 [0.175]
4,57 [0.175]
2,03 [0.08]
2,54 [0.10]
4,32 [0.17]
6,6 [0.26]
14,6 [0.575]
max.
Ø 7,87 [Ø 0.31]
shoulder on bushing
0,51 [0.02]
Ø 1,78 [Ø 0.07]
Ø 1,02 [Ø 0.04]
2,03 [0.08]
Locking lever dimensions for
single pole TW toggles
1/4-40 UNS thread
to within 1,27 [0.05]
of shoulder
Environmental
seal
2,54 [0.10]
4,57 [0.175]
10,67 [0.42]
0.055 wide x
0.03 deep
keyway
16,26 [0.64]
max.
0,51 [0.02]
Ø 1,78 [Ø 0.07]
35° ±5° total travel
17°
6,35 [0.25]
12,95 [0.51] dia.
shoulder on bushing
8,76 [0.345]
max.
26,67 [1.05]
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
MICRO SWITCH™ TW SERIES 2-POLE STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS
Note: Three-position switches shown
12TW1: Single pole, standard lever,
15/32 bushing, solder terminals
1,83 x 0,76
[0.072 x 0.03]
deep keyway
112TW1: Single pole, standard lever,
15/32 bushing, IWTS
2TW1: Single pole, standard lever,
1/4 bushing, solder terminals
14,6 [0.575]
max.
14,6 [0.575]
max.
13,6 [0.535]
max.
Ø 6,1 [Ø 0.24]
Ø 2,79 [Ø 0.11]
28° ±4° total travel
Ø 6,1 [Ø 0.24]
28° ±4° total travel
Sealed to prevent
entrance of liquid
or dust
17,27 [0.68]
15/32-32 UNS thread
to within 1,58 [0.062]
of shoulder
18,8 [0.74]
max.
17,27 [0.68]
Sealed to prevent
entrance of liquid
or dust
1,83 x 0,76
[0.072 x 0.03]
deep keyway
11,94 [0.47]
15/32-32 UNS thread
to within 1,58 [0.062]
of shoulder
10,67 [0.42]
1/4-40 UNS thread
to within 1,27 [0.05]
of shoulder
0.055 wide x
0.03 deep
keyway
6,35 [0.25]
12,95 [0.51] dia.
shoulder on bushing
Ø 7,87 [Ø 0.31]
shoulder on bushing
16,26 [0.64]
max.
32,5 [1.28]
max.
0,51 [0.02]
2,03 [0.08]
Ø 1,78 [Ø 0.07]
Ø 1,02 [Ø 0.04]
4,57 [0.175]
35° ±5° total travel
17°
12,95 [0.51] dia.
shoulder on bushing
11,94 [0.47]
13,6 [0.535]
max.
0,51 [0.02]
2,54 [0.10]
Environmental
seal
2,54 [0.10]
2,54 [0.10]
4,57 [0.175]
4,57 [0.175]
6,9 [0.27]
13,6 [0.535]
max.
6,9 [0.27]
2,54 [0.10]
3,05 [0.12]
2,79 [0.11]
3,05 [0.12]
6,9 [0.27]
4,57 [0.175]
2,03 [0.08]
4,57 [0.175]
4,57 [0.175]
3,05 [0.12]
Ø 1,78 [Ø 0.07]
Ø 1,02 [Ø 0.04]
14,99 [0.590]
max.
Locking lever dimensions for
double pole TW toggles
3,56 [0.14]
Ø 9,53
[Ø 0.375]
14,6 [0.575]
max.
13,6 [0.535]
max.
Colored paddle dimensions for
double pole TW toggles
Ø 10,87 [Ø 0.428]
17,0 [0.67]
25,4 [1.0]
28° ±4° total travel
26,67 [1.05]
2,29 [0.09] approx.
pullout to
change position
29,46 [1.16]
max.
Ø 6,35
[Ø 0.25]
Safety and Productivity Solutions
7
MICRO SWITCH Miniature Military-Grade Toggle Switch, TW Series
MICRO SWITCH TW SERIES LOCKING CONFIGURATIONS
Table 8. Paddle Lever Colors
Color
Suffix
Paddle Lever Color
A001
White
A002
Black
A003
Blue
A004
Red
A005
Green
A006
Orange
A007
Light Grey
8 sensing.honeywell.com
m WARNING
ADDITIONAL MATERIALS
The following associated literature is available on the Honeywell
web site at sensing.honeywell.com:
• Product installation instructions
• Product range guide
• Product application-specific information
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
– Flight deck toggle switches
– Sensors and switches in front loaders
– Sensors and switches in mobile cranes
– Sensors and switches in oil rig applications
m WARNING
MISUSE OF DOCUMENTATION
•
•
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
Warranty/Remedy
Find out more
Honeywell serves its customers
through a worldwide network
of sales offices, representatives
and distributors. For application assistance, current specifications, pricing or name of the
nearest Authorized Distributor,
contact your local sales office.
To learn more about Honeywell’s sensing and control
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing;
please refer to your order acknowledgement or consult your
local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge
those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all
other warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While Honeywell may provide application assistance personally,
through our literature and the Honeywell web site, it is buyer’s
sole responsibility to determine the suitability of the product in
the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this writing.
However, Honeywell assumes no responsibility for its use.
products, call +1.815.235.6847
or 1.800.537.6945,
visit sensing.honeywell.com,
or e-mail inquiries to
info.sc@honeywell.com
Honeywell Safety and Productivity Solutions
9680 Old Bailes Road
Fort Mill, SC 29707
www.honeywell.com
002310-4-EN IL50 GLO
September 2016
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