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

Guard Locking Safety Switch with RFID up to 3000N (KLTM-RFID)

The KLTM-RFID guard locking safety interlock with RFID features a low profile body and with industry standard 73mm fixing centre, to enable easy retrofitting to new or existing guards. The robust design allows for a holding force of up to 3000N to keep medium to large guard doors closed until the hazard/s have been removed.

  • Body Material: Red Painted Die-Cast
    Head Material: Mirror Polished 316 Stainless Steel
  • Ingress Protection: IP67
  • RFID Coding: Unique (can be retaught if lost or damaged)
  • Safety Configuration: 4 N/C Safety Outputs and 2 N/O Auxiliary Outputs


Part No.Part Description
450201KLTM-RFID (Uniquely coded) M20 24v (Front/End Lower)
450202KLTM-RFID (Uniquely coded) ½”NPT 24v (Front/End Lower)
450203KLTM-RFID (Uniquely coded) QC M23 24v (Front/End Lower)
450301KLTM-RFID (Uniquely coded) M20 24v (Rear/Front Upper)
450302KLTM-RFID (Uniquely coded) ½”NPT 24v (Rear/Front Upper)
450303KLTM-RFID (Uniquely coded) QC M23 24v (Rear/Front Upper)

Technical Data
ApprovalsTUV, cULus
Classification and Coding Level according to EN ISO 14119Type 4, High
TechnologyRFID, Power to Unlock
Housing MaterialPainted Die-Cast Metal
Head Material316 Grade Stainless Steel
Supply Voltage24Vdc (+/- 10%)
Power ConsumptionR+ 1.2W (50mA Max.) / S+ 12W (500mA Max.)
Safety Circuits24Vdc 200mA max. switching
Auxiliary Circuits (34 & 44)24Vdc 200mA max. Output feed
Rated Insulation Voltage500VAC
Rated Impulse withstand1000VAC
Holding ForceF1Max 3000N Fzh 2307N
Assured locking distance5mm
Sao (RFID)10mm
Sar (RFID) 20mm
Max operating frequency1Hz
Actuator entry minimum radius175mm
Enclosure ProtectionIP67
Operating Temperature -25 ... +40 °C
Mechanical Life Expectancy (B10d)2.5 x 106 cycles at 100mA load
VibrationIEC68-2-6, 10-55Hz+1Hz Excursion: 0.35mm, 1 octave/min

Characteristic data according to IEC62021 (used as a subsystem)
Safety Integrity LevelSIL 3
PFH (1/h)4.77E-10 (Corresponds to 4.8% of SIL3)
PFD4.18E-05 (Corresponds to 4.2% of SIL3)
Proof Test Interval T120a

Characteristic data according to EN ISO13849-1
Performance Levele (If both channels are used in conjunction with a SIL 3 / PL e control Device).
Diagnostic Coverage DC99% (High) (If both channels are used in conjunction with a SIL 3 / PL e control Device).
CategoryCat 4.

Information with regard to UL standards
Type 1 enclosure. Maximum temperature 40°C. Use 16-28AWG copper conductors (rated 90°C). Terminal Torque 6 lb ins. (0.7Nm). Intended for same polarity use. Safety Circuits (11-31 & 21-41) A300 Pilot Duty. 240V. 3A. (PF 0.38 or greater tested for 6,000 cycles endurance). Use one polymeric conduit connection. Not suitable for connection to rigid metal conduit. (Earth bonding terminal inside enclosure if required – use 16-12AWG conductors)