PEPPERL+FUCHS KFD2-SR2-Ex1.W Brand New Intrinsic Safety Barriers Isolated Barriers K-System Switch Amplifier

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PEPPERL+FUCHS KFD2-SR2-Ex1.W Brand New Intrinsic Safety Barriers Isolated Barriers K-System Switch Amplifier
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PEPPERL+FUCHS Switch Amplifier KFD2-SR2-Ex1.W


1-channel isolated barrier

24 V DC supply (Power Rail)

Dry contact or NAMUR inputs

Relay contact output

Line fault detection (LFD)

Reversible mode of operation

Up to SIL 2 acc. to IEC 61508/IEC 61511


Function :

This isolated barrier is used for intrinsic safety applications. It transfers digital signals 

(NAMUR sensors/mechanical contacts) from a hazardous area to a safe area. 

The proximity sensor or switch controls a form C changeover relay contact for the safe area load. 

The barrier output changes state when the input signal changes state. The normal output state can be reversed using switch S1. Switch S3 is used to 

enable or disable line fault detection of the field circuit. During an error condition, the relay reverts to its de-energized state and the 

LEDs indicate the fault according to NAMUR NE44. A unique collective error messaging feature is available when used with the Power Rail system.


KFD2-SR2-Ex1.W .jpg


Selection models:

KCD2-SR-Ex1.LB                                      KCD2-SR-Ex2                                KFA6-DU-Ex1.D

KFA6-ER-Ex1.W.LB                                  KFA6-SOT2-Ex2                             KFA6-SR2-Ex1.W

KFA6-SR2-Ex1.W.LB                                KFA6-SR2-Ex2.W                           KFA6-SR2-Ex2.W.IR



KFD2-ELD-Ex16                                       KFD2-ER-Ex1.W.LB                         KFD2-SH-Ex1

KFD2-SH-Ex1.T.OP                                  KFD2-SOT3-Ex1.LB                         KFD2-SOT3-Ex1.LB.IO

KFD2-SOT3-Ex2                                       KFD2-SOT3-Ex2.IO                         KFD2-SR2-Ex1.W



KFD2-SR2-Ex2.W                                    KFD2-SR3-Ex2.2S                           KFD2-SRA-Ex4

KFD2-ST3-Ex1.LB                                   KFD2-ST3-Ex2                                 KHA6-SH-Ex1

KCD2-SON-Ex1                                       KCD2-SOT-Ex1.LB                           KCD2-SOT-Ex2



KCD2-SR-Ex1.LB.SP                               KCD2-SR-Ex2.SP                             KCD2-ST-Ex1.LB

KCD2-ST-Ex2                                          KFA5-SOT2-Ex2                               KFA5-SR2-Ex1.W

KFA5-SR2-Ex1.W.LB                               KFA5-SR2-Ex2.W                             KFA5-SR2-Ex2.W.IR



KFD2-SOT3-Ex2.IO-Y1                          KCD2-SON-Ex1.R1                         KCD2-SON-Ex1.SP

KCD2-SON-Ex2                                      KCD2-SON-Ex2.R1                         KCD2-SON-Ex2.SP

KCD2-SOT-Ex1.LB.SP                           KCD2-ST-Ex1.LB.SP                        KCD2-ST-Ex2.SP


KFD2-SR2-Ex1.W details


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