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

Compact Tongue Interlock Safety Switch (INCH-3)

The compact body is only 25mm wide with 18mm fixing centres, ideal for restricted spaces. The rotatable head provides up to 8 actuator entry positions. In addition to the INCH-1, the INCH-3 has three M16 conduit entries and 3-Pole contact blocks.

  • Housing/Fixing: Compact, 18mm fixing profile
  • Contacts: 2 N/C + 1 N/O
  • Connection: Wired or M12 Quick Connect

NOTE: Replaceable contact blocks.

Part No.Part Description
223001INCH-3 M16 2NC 1NO
223001AINCH-3 M16 2NC 1NO – std actuator
223001FINCH-3 M16 2NC 1NO – flat actuator
223001PFINCH-3 M16 2NC 1NO – PF actuator
223002INCH-3 QC M12 8way 2NC 1NO
223002AINCH-3 QC M12 8way 2NC 1NO – std actuator
223002FINCH-3 QC M12 8way 2NC 1NO – flat actuator
223002PFINCH-3 QC M12 8way 2NC 1NO  – PF actuator

Technical Data
CertificatescULus
TechnologyTongue Interlock (Non Locking)
Housing MaterialPolyester
Head MaterialStainless Steel
Contact Configuration2 NC + 1 NO
Thermal Current (lth)10A
Overload protection fuse (fuse externally)10A. (FF)
Rated Insulation/Withstand Voltages600VAC/2500VAC
Actuator Travel/Force for Positive Opening6mm/12N
Actuator Entry Minimum Radius150mm Standard 100mm Flexible
Maximum Approach Withdrawal Speed600mm/s
Enclosure Protection IP67
Operating Temperature-25 ... +80 °C
VibrationIEC 68-2-6 10-55Hz+1Hz Excursion: 0.35mm, 1 octave/min
Fixing2 x M4
Pollution Degree3
Short Circuit Overload ProtectionFuse externally 10A (FF)

Information with regard to UL Standards
EnclosureType 1
Electrical RatingPilot Duty A300 240V.ac 3A. 6,000 cycles
Maximum Ambient Temperature+40 °C
Use 16 - 12AWG stranded copper insulated conductors rated 90ºC minimum. (75C. ampacity).
Terminal tightening torque 7ibs ins (0.8Nm)
Intended for same polarity use and one polymeric conduit connection
Not suitable for connection to a rigid metal conduit system