Part# 11-00788
MFR Model# T3-21151
# of PolesMIL No.OTTO No.CircuitOur Part No.


Note: ( ) denotes Momentary action.

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.

1/4-40 unsealed bushing construction, momentary and/or maintained operation.

Mounting hardware provided includes two hex nuts, one lockwasher and one keyway washer.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov


  • 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





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Great quality and quick shipping

Les H
August 31, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Which ones are for 24 volt?

All of these switches can be used in a 24 Volts system. Another key aspect to consider for proper switch selection is the current of the system, if the current is less than 250 mA, then the Gold plate option should be selected, otherwise the Silver/Gold Flash can be used. If the system current is unknown, then the Gold Plate version can be used for both low and high current systems.

Q: On-None-ON is only 2 position? or have center position?

This is a momentary switch and does not have a middle position.

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