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

RFID Non-Contact Safety Interlock Switch (LPF)

The LPF is a machine guard safety switch that uses RFID technology to detect the presence of a guard and ensure safe operation of machinery. The rectangular design features a low profile, industry standard mounting arrangement that is robust and resistant to chemical cleaning.


  • Housing/Fixing: Narrow design for flush mounting
  • Contacts: 2 N/C + 1 N/O
  • Sensing Distance: 8mm ON / 20mm OFF
  • Connection: Pre-Wired or M12 8-Pole Quick Connect
  • Indication: Single LED for Guard and RFID Code Status
  • Switching capability: 0.2A (Requires 24Vdc supply to operate)

 

Part No. Part Description
404001 LPF-U-RFID 2M Unique Coded
404002 LPF-U-RFID 5M Unique Coded
404003 LPF-U-RFID 10M Unique Coded
404004 LPF-U-RFID QC M12 8way Unique Coded
404101 LPF-M-RFID 2M Master Coded
404102 LPF-M-RFID 5M Master Coded
404103 LPF-M-RFID 10M Master Coded
404104 LPF-M-RFID QC M12 8way Master Coded
404201 LPF Replacement Actuator

Technical Data
ApprovalsTUV, cULus
Coding Level according to EN ISO 14119M = Medium / U = High
TechnologyRFID
Housing MaterialRed, Polyester
Normally Closed ContactsUp to 2 N/C Safety (When the Guard is Closed)
Normally Open ContactsUp to 1 N/O Auxiliary (When the Guard is Closed)
Switching Distance Sao 8mm / Sar 20mm
Tolerance to Misalignment5mm in any Direction from 5mm Setting Gap
IndicationGreen LED when Guard is Closed
Connectivity2m, 5m, 10m, M12 QC
Length88mm
Width25mm
Height13mm
IP RatingIP67
Ambient Temperature-25 ... +55 °C
Storage Temperature-25 ... +55 °C
Supply24VDC +/- 10%
Maximum Switched Current (Outputs)200mA (Minimum Internal Resistance 8.5ohms)
Switching Frequency1.0 Hz Maximum
Approach Speed200mm/m. to 1000mm/s.
CablePVC 6mm O.D. Conductors 0.25 sq.mm

Characteristic Data according to IEC62061 (used as a sub system)
Safety Integrity LevelSIL3
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 combination with a SIL3/PLe control device)
Category Cat4
MTTFd 1100a
Diagnostic Coverage DC99% (high)

Information with regard to UL 508
EnclosureType 1
Maximum Temperature+50 °C
Maximum Output24V.dc 100mA
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