Page 1

Copyright © 2019 Sensata Technologies, Inc.

www.sensata.com

AT SERIES | POSITION SWITCHES

SNAP ACTION PRECISION POSITION SWITCHES (RATED 4 AMPS @ 28VDC)

AT Series

• Flight Control Actuators

• Landing Gear Steering

• Landing Gear Down

& Locked

• Engine Start Quadrant

• Helicopter Litter Door Latch

• Helicopter Rotor Brake

• Helicopter Rotor Brake

• APU Valve Indication

• Throttle Grip Control

• Satellite Applications

• Satellite Arm Extended

• Parachute Release

3AT Series

• Engine Start Valves

• Bleed Air Valves

• Env. Control Systems Valve

• Avionics Cooling Valves

• Anti-Icing Valves

• Fuel Valves

• Thrust Reverser

• Flap Assembly

4AT Series

• Liquid Oxygen Valves

• Solar Array Position

• Satellite Antenna Position

• Mars Observer

• International Space Station Applications

• Lunar Rover Release & Power Up

10AT Series

(MIL-PRF-8805)

• Gearbox

• Blade Fold Indication

• Landing Gear Indication

• Steering Wheel Switch

• Ejection Seat Armed

• Cargo Handling Systems

• Helicopter Rotor Condition

• Helicopter Door Indication

• Antenna Position

• Throttle Quadrant

• Thrust Reverser

• Flight Control Actuators

• EVA Space Suit

• Space Capsule Controls

• Inertial Upper Stage

• Weapons Systems

Features

Introduction

Applications

Nomenclature

KLIXON® hermetic snap–action position switches are ideal for

extremely harsh and demanding environments as found in aircraft,

military, aerospace, and aircraft engines applications. KLIXON®

precision hermetic position switches have been used for over 55 years

in a wide range of applications. Our switches are found on virtually all

commercial and military aircraft, as well as various space vehicles and

satellites worldwide.

Our design library has over 2,000 switch package designs which allow

for “off-the-shelf” solutions to meet most application needs. Custom

designs are also available if the customer’s application requires different

form factors, or actuation methods. We offer a wide choice of precision

position switches ideally suited for mission-critical applications that

require accurate switching in extreme temperatures, high vibration

and shock environments, or in the presence of typical aerospace fluids

including but not limited to coolants, oils, hydraulic fluid, fuel, and de-

icing fluids.

• Qualified per MIL-PRF-8805, Enclosure Symbol 5

• Hermetically sealed with dry nitrogen gas backfill

• Proven snap-action switching, reliable performance and long life

• Excellent shock and vibration resistance

• Switching up to 4 amps

• Optimal for low level circuits

• Temperature range between -275°F and 450°F

• Small, lightweight axis–symmetric design for robustness and reliability

• Single and multiple pole designs available

• Various mounting configurations for custom applications

• Sealed and unsealed plunger options

• Wide range of side plate designs for narrow width applications

• PMA Approvals for various commercial aircraft

• Customer approvals for space and military applications

Precision hermetic position switches are sometimes referred to as:

• Position switches

• Aircraft switches

• Miniature switches

• Hermetic switches

• Aerospace switches

• Sensitive switches

• Limit switches

• Military switches

• Switches