COMMERCIAL & MIL MINIATURE TOGGLES
FEATURING OTTO’S UNIQUE SNAP-ACTION MECHANISM
MINIATURE
TOGGLES
T3
These miniature toggles are rugged, highly reliable switches
offering positive detent action for safe switching operation.
Featuring the unique OTTO snap-action switch mechanism in
conjunction with a unique toggle actuator design, the T3 series
offers snap-action contact actuation.
High contact pressure and superior wiping action of the OTTO
design makes the T3 series an excellent choice for switching
loads from logic level up to 5 amps.
Choose sealed one or two pole circuitry, 15/32-32 sealed
or 1/4-40 unsealed bushing construction, momentary and/or
maintained operation. The 15/32-32 bushing model is also
available with lever lockout toggle feature or thumb
button actuators.
Molded-in terminals seal the contacts against moisture and
solder flux wicking. The front-panel side of 15/32-32 bushing
models are sealed against water and other liquids per
MIL-DTL-83731.
In addition to the single turret solder terminal specified in
MIL-DTL-83731, we also offer two different lengths of pins
for printed circuit soldering.
Mounting hardware provided includes two hex nuts, one
lockwasher and one keyway washer.
T3-1
Style
T3-5
Style
T3-3
Style
T3-4
Style
T3-1
Style
T3-2 Style
TOGGLE SWITCHES
Standard Characteristics/Ratings:
ELECTRICAL RATINGS:
Load
Resistive
Inductive
Lamp
DWV
Electrical Life:
Mechanical Life:
Seal:
Sea Level @ 28VDC
or 115VAC, 400Hz
5A
2A
1A
1050Vrms
30,000 cycles
100,000 cycles
MIL-DTL-83731 (15/32-32 bushing style only)
@ 65,000 Feet
5A
2A
N/A
400Vrms
Features:
•
•
•
•
•
•
•
•
•
Snap-action contact actuation
Shorter behind panel depth
Superior wiping action keeps contacts clean
Positive tactile response prevents operating errors
Weighs up to 25% less than competitive products
More contact/terminal plating choices
Highly reliable, simpler design, fewer parts
Black matte finish available. Contact factory.
RoHS/WEEE/Reach compliant
Operating Temp Range:
-65°C to +85°C
MATERIALS:
Handle:
Bushing:
Body:
Terminal Hardware:
Mounting Hardware:
303 Stainless
Per MIL-DTL-83731
Per MIL-DTL-83731
None required
Hex nuts, lockwasher and keyway washer
T3 – X X X X X X – or X
Bushing Style
1.
15/32-32
2.
1/4-40
3.
15/32-32 With
Lockout
➀
4.
15/32-32 With
Convex Button
➁
5.
5/32-32 With
1
Concave Button➁
T3 PART NUMBER CODE
Circuit Made With Lever At:
Keyway
Center
Opposite
Side
Keyway
1.
ON
OFF
ON
2.
OFF
NONE
ON
3.
ON
NONE
ON
4. (ON)
NONE
ON
5. (ON)
OFF
(ON)
6. (ON)
OFF
ON
NOTE: ( ) denotes momentary action.
Terminal Style
1.
Single Turret
4.
PC Pin 0.150” lg.
5.
PC Pin 0.270” lg.
Circuitry
1.
Single Pole
2.
Double Pole
Contact Material
1.
Silver/Gold Flash
2.
Gold Plate
Lockout Feature
Lockout feature
configuration code
letters A–P for
bushing style 3 only.
Otherwise omit.
Button Color
1.
Red
2.
Black
8.
Grey
(for bushing styles 4 & 5 only)
➀
Add appropriate lockout feature configuration code letter (A thru P) for bushing style 3 only.
➁
Button color codes (1, 2 and 8) for bushing styles 4 and 5 at end of Part Number.
Special Note: For black levers and
bushings, please contact factory.
Specifications Subject To Change Without Notice
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180
T3
MINIATURE
TOGGLES
COMMERCIAL & MIL MINIATURE TOGGLES
MEETS MIL-DTL-83731, COMMERCIAL & MILITARY GRADES
Center
Position
OFF
None
None
None
OFF
OFF
OFF
None
None
None
OFF
OFF
Opposite
Keyway
2-3 5-6
ON
ON
ON
ON
(ON)
ON
ON
ON
ON
ON
(ON)
ON
MIL-SPEC
Part
Number
MS27718-21-1
MS27718-22-1
MS27718-23-1
MS27718-26-1
MS27718-27-1
MS27718-31-1
MS27719-21-1
MS27719-22-1
MS27719-23-1
MS27719-26-1
MS27719-27-1
MS27719-31-1
No. Keyway
Poles Side
1-2 4-5
1
ON
1
OFF
1
ON
1
(ON)
1
(ON)
1
(ON)
2
2
2
2
2
2
ON
OFF
ON
(ON)
(ON)
(ON)
Circuit Made With Lever At
15/32” Bushing (Sealed)
OTTO
Part
Number
T3-11111
T3-11121
T3-11131
T3-11141
T3-11151
T3-11161
T3-11211
T3-11221
T3-11231
T3-11241
T3-11251
T3-11261
1/4-40” Bushing (Unsealed)
MIL-SPEC
Part
Number
MS27716-21-1
MS27716-22-1
MS27716-23-1
MS27716-26-1
MS27716-27-1
MS27716-31-1
MS27717-21-1
MS27717-22-1
MS27717-23-1
MS27717-26-1
MS27717-27-1
MS27717-31-1
OTTO
Part
Number
T3-21111
T3-21121
T3-21131
T3-21141
T3-21151
T3-21161
T3-21211
T3-21221
T3-21231
T3-21241
T3-21251
T3-21261
MIL-SPEC
Part
Number
MS27720-21-1_
MS27720-22-1_
MS27720-23-1_
MS27720-26-1_
MS27720-27-1_
MS27720-31-1_
MS27721-21-1_
MS27721-22-1_
MS27721-23-1_
MS27721-26-1_
MS27721-27-1_
MS27721-31-1_
Lever Lock-15/32” Bushing (Sealed)
OTTO
Suffix for
Part
Lockout
Number
Feature
T3-31111_
All
T3-31121_
D, F, G
T3-31131_
D, F, G
T3-31141_
F
T3-31151_
E, L, N
T3-31161_ E, F, K, L, M, N
T3-31211_
All
T3-31221_
D, F, G
T3-31231_
D, F, G
T3-31241_
F
T3-31251_
E, L, N
T3-31261_ E, F, K, L, M, N
NOTE: ( ) denotes momentary action.
Standard Toggle,
15/32-32 Bushing
Sealed front panel construction.
Standard Toggle,
1/4-40 Bushing
Unsealed front panel construction. Optional
front panel seal P/N 700223.
Thumb Actuators, 15/32-32 Bushing
Sealed front panel construction. Behind-panel
dimensions same as 15/32-32 Bushing style.
Lever Lockout Toggle, 15/32-32 Bushing
Sealed front panel construction.
Lever Lockout Configuration Codes
Figures A thru P are schematics to illustrate lockout
configurations and momentary positions. They do
not represent details of construction.
A
Locked in all three positions
B
Locked in Center and Keyway Side position
D
Locked out of Center position
E
Locked in Center position
F
Locked in Opposite Keyway position
G
Locked in Keyway Side position
H
Locked out of Center and Keyway Side Position
J
Locked out of Center and Opposite Keyway position
K
Locked in Center and Opposite Keyway position
L
Locked out of Keyway Side position
M
Locked out of and into Opposite Keyway position
N
Locked out of Opposite Keyway position
P
Locked out of and into Keyway Side position
181
OTTO Full Line Catalog
Specifications Subject To Change Without Notice
