APEM IM Series

Sealed Snap-Action Pushbutton Switches, Bushing Ø 12 mm, Momentary

Harsh, noisy environments, including those involving vibrations, make the use of a sealed switch with a confirming “click” imperative. The APEM IM series, with its strong & audible tactile feedback, respond to those needs. The IM push-button series includes snap-action mechanism: audible tactile feedback, high voltage rating, Matching the “I” range design, diameter 12 mm bushing, round actuator, light plastic case, two bezel diameters (standard 17 mm, reduced 15 mm), and sealed to IP67, and mechanical lifetime of 1 million cycles.

Snap-action: Tactile feedback with an audible click, high-current/voltage rating, sealed to IP67, flat round actuator for optional marking, NO+NC.

  • Specifications
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    • - collapse all


    Panel Thickness 1.5 mm (.059) to 10 mm (.394) -
    Total Travel 1.7 mm (.067) +/- 0.3 mm -
    Low Level or Mechanical Life 1,000,000 cycles -
    Torque (applied to nut) 1 Nm max. with metal nut U166 - 1.5 Nm max. with plastic nut U4248 -


    Max. Current/Voltage Rating With Resistive Load 3 A 28 Vdc -
    Initial Contact Resistance 100 mΩ max. -
    Insulation Resistance 1 GΩ min. at 500 Vdc -
    Dielectric Strength 500 Vrms between terminals -
    Electrical Life at Full Load 25,000 cycles -


    Front Panel Sealing IP67 according to IEC 60529 -
    Shock Resistance 50 g - 11 ms according to IEC 68-2-27 -
    Salt Spray IEC 512-6, test 11f -
    Operating Temperature -40 °C to +85 °C (-40 °F to 185 °F) -
    Storage Temperature -40 °C to +8 5°C (-40 °F to 185 °F) -


    Case Polyamide 4/6 -
    Actuator Polyamide 6/6 -
    Bushing/Bezel Polyamide 6/6 -
    Contacts Silver, gold plated -
    Terminals Epoxy -


    Actuator Shapes Round, curved Round, flat - Actuator marking available on round flat models (symbol 10 mm max.) On request
    Terminals Straight PC Quick-connect
    Actuator Colors Many to choose from -
    Bushing & Bezel Black Other: on request
    Bezel Options Standard bezel Dia. 15 (.590) reduced bezel, front mounting; Dia. 15 (.590) reduced bezel, std mounting
    Actuator Option Std actuator High actuator

    Features & Benefits

    Snap-action mechanism: audible tactile feedback, high voltage rating -
    Enhanced safety, resistance to shocks and vibrations -
    Light plastic case -
    2 bezel diameters -
    Ergonomically adapted for use in tight spaces (handles& vehicles) -
    NC+NO function -
    Highly reliable in the harshest environments -


    Mobile -


    Harsh Environments -
    Noisy Environments -
    Vibration Applications -
    Agriculture -
    Military Vehicles -
    Crane Remote Controls -
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