倍加福安全栅报价快 KFD2-SL2-EX1.B  王 :
• Line fault detection (LFD)
• Housing width 12.5 mm
• Up to SIL 2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications. It 
transfers digital signals (NAMUR sensors/mechanical 

倍加福安全栅报价快 KFD2-SL2-EX1.B  王 :
contacts) from a hazardous area to a safe area.
The proximity sensor or switch controls a form A normally 
open relay contact for the safe area load. The normal output 
state can be reversed using switch S1. Switch S2 allows 
output II to be switched between a signal output and an error 
message output. Switch S3 enables or disables line fault 
detection of the field circuit.
During an error condition, relays revert to their de-energized 
state and LEDs indicate the fault according to NAMUR NE44.
A unique collective error messaging feature is available when 
used with the Power Rail system.
Due to its compact housing design and low heat dissipation, 
this device is useful for detecting positions, end stops, and 

KFD2-SL2-EX1.B  王 :