KDS Series
Intrusion Switch

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KDS series intrusion switches are used to power intrusion/alarm switches in network desktop PCs, in cellular base stations and in telecommunications equipment. C&K’s KDS series are RoHS compliant, available in either N.O. or N.C. configurations and have an easily customizable wire harness length and connector. In addition, these switches are designed to slot mount directly into the chassis, helping to reduce installation costs.

Features and Benefits

  • Slot mount into chassis to reduce installation cost
  • Wire harness length & connector easily customized
  • Available in N.O. or N.C. configuration

Typical Applications

  • Intrusion/Alarm switch in network desktop PC
  • Intrusion/Alarm switch in telecommunication equipment
  • Intrusion/Alarm switch in cellular base station


  • Contact Rating:

    0.4 VA max. @ 20 V AC or DC

  • Electrical Life:

    10,000 actuations min. at full load

  • Contact Resistance:

    200 milliohms max. initial @ 2-4 V DC, 100 mA

  • Insulation Resistance:

    109 ohms min.

  • Dielectric Strength:

    500 Vrms min. @ sea level

  • Operating Temperature:

    –40ºC to +85ºC

= Most Common

Current Rating Circuit Mounting Type Sealing Illumination Switch Function Electrical Life Cycles Voltage Rating - AC Voltage Rating - DC Actuator Type Termination Style Operating Force, Torque Release Force Pretravel Overtravel Packaging
0.4VA (AC/DC) SPST-NO Chassis Mount Unsealed No/None Off-Mom 10,000 20V 20V Overtravel Plunger Wire Leads 0.180" (4.6mm) 0.224" (5.7mm) Bulk
0.4VA (AC/DC) SPST-NC Chassis Mount Unsealed No/None On-Mom 10,000 20V 20V Overtravel Plunger Wire Leads Bulk