Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Tongue Interlock Safety Switch with OSSD (KM-Z)

The KM-Z combines internal self-monitoring and OSSD outputs with a robust, slimline body for reliable position interlock detection on medium to heavy duty moving guards.

The head can be rotated to give 8 actuator entry positions. (Actuator sold separately, see accessories section)

  • Material: Diecast, Red Painted
  • Housing/Fixing: 118mm Long Body with 30mm Fixing
  • Contacts: 2 OSSD Outputs (PNP) + 1 Auxiliary Output (PNP)
  • Connection: Wired or M12 Quick Connect

NOTE: Replaceable contact blocks.

Part NumberPart DescriptionSafety ChannelsAuxiliaryConnection
203300-ZKM 2NC 1NO QC-M12 8way OSSD2 OSSD PNP1 PNP250mm Pigtail 8way M12 Quick Connect

Technical Data
CertificatescULus (TUV on Internal Contact Block)
TechnologyTongue Interlock (Non Locking)
Housing MaterialPainted Die-Cast
Contact Configuration2 OSSD PNP + 1 PNP Auxiliary
Rated Operating Voltage24V DC -15% +10% (Use SELV/PELV)
Power Consumption0.7W
Outputs Rated Voltage24V DC
Outputs max. / min.Current0.2 A / 1mA
Inputs Rated Voltage / Current24V DC / 2mA
Auxiliary Signalling Output Rated Voltage24V DC
Auxiliary Signalling Output Max. Current0.2 A PNP
Response Time Guard Open60ms max.
Response Time Inputs Off20ms max.
Operating Temperature-20 ... +50 °C

Characteristic Data according to IEC62061 (used as a sub system)
Safety Integrity LevelSIL3
PFH (1/h)1.0 E-09 (Corresponds to 1% of SIL3)
PFD8.8 E-05 (Corresponds to 9% of SIL3)
Proof Test Interval T120a

Characteristic Data according to EN ISO13849-1
Performance Levele
Category4
MTTFd771a
Diagnostic Coverage DCHigh

Information with regard to U.L. Standards
EnclosureType 1
Maximum temperature+50 °C
Maximum output24V DC 100mA
Powered by Class 2 or equivalent.