Pepperl+Fuchs isolated barrier KFD2-ST2-EX2

Switch Amplifier KFD2-ST2-EX2

Pepperl+Fuchs isolated barrier KFD2-ST2-EX2

Features
• 2-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Active transistor output
• Line fault detection (LFD)
• Reversible mode of operation
• Up to SIL 2 acc. to IEC 61508


Function
This isolated barrier KFD2-ST2-EX2 is used for intrinsic safety applications. The device transfers digital signals (NAMUR sensors or dry contacts) from a hazardous area to a safe area. A proximity sensor or switch controls an active transistor output for the safe area load. The output changes state when
the input signal changes state. Pepperl+Fuchs isolated barrier KFD2-ST2-EX2
The output state can be reversed using switches S1 and S2. Switch S3 enables or disables line fault detection of the field circuit. Pepperl+Fuchs isolated barrier KFD2-ST2-EX2
During an error condition, the transistor reverts to its deenergized state.
A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.


Detailed Models
KFD2-SR2-Ex2.W
KFD2-SL2-Ex1
KFD2-SR2-Ex1.W
KFD2-STC4-Ex1
KFD2-SR2-EX.1.W.LB
KFD2-EB2.R4A.B
KFD2-SCD2-EX1.LK
KFD2-SR2-EX2.W
KFD2-SL2-EX2.B
KFD0-TT-EX1
KFD0-TR-EX1
KFD2-STC4-EX2
KFD2-UFC-EX1.D
KFD2-SCD2-EX2-LK
KFD2-CD-EX1.32-15
KFD2-STC4-EX1.2O
KFD2-SH-EX1.T.OP
KFD2-SR2-EX2.2S
KFD2-BR-1.PA.93
KFD2-UT2-EX2
KFD2-UFC-EX1.D
KFD0-SD2-EX1.1045
KFD2-SOT2-EX1.LB
KFD2-STC4-EX1.20
KFD2-STC4-1.20
KFD2-SCD2-EX2.LK
KFD2-SCD2-2.LK
KFD2-SH-EX1
KFD0-SD2-Ex2.1245
KFD2-SL2-Ex1.LK
KFD2-BR-Ex1.3PA.93
KFD2-CD2-EX2
KFD2-UT2-EX2
KFD2-STC4-EX1.2O
KFD2-CR4-1.2O
KFD2-CD2-EX1
KFD2-SL2-EX2
KLD2-PR-1.IEC
KFD2-WAC2-EX1.D
KFD2-UFT-EX2.D
KFD2-UFC-1.D
KFD-STC4-EX1.2O.DE
KFD2-SCD2-EX1
KFD2-PT2-Ex1
KFD2-SR2-EX2.2S
KFD0-SD2-EX1.1045
KCD2-E2L 
KCD2-STC-EX1
KFD2-SR2-EX1.W
KFD2-SCD2-EX1-LK
KCD2-SCD-EX1
KFD2-UT2-EX1
KFD2-VR4-EX1.26
KFD2-SR2-EX1.W.LB
KFDO-RSH-1
KFD2-GS-1.2W 
KFD2-EB.R4A.B
KFD0-SCS-EX1.55
KFD2-EX1.32
KFD2-STC4-Ex1-Y1.
KFD2-SR2-EX2.2S
KFD2-SCD2-EX2.LK
KFA5-SR2-EX1.W.LB
KFD2-RR-EX1
KFD2-SCD-EX1.LK
KFA6-STR-1.24.500
Z787.H
KFD0-CS-EX2.50P
KFD0-CS-EX2.51P
KFA6-SR2-EX1.W.LB
KFA5-SR2-EX1.W
KFD2-ST2-EX2
KFD2-DWB-1.D
KFD2-UT-EX1
KFD2-SR2-2.2S
HD2-FBPS-1.500
HD2-DM-B
KFD2-GU-Ex1.D
KFD2-PT2-EX1-5
KFD2-DWB-Ex1.D
KFA6-DWB-EX1.D
KFD2-STV4-EX2-2
Z728
Z828
KFD0-CS-Ex1.54P
KFU8-DW-1.D
KFD0-RO-Ex2
S1SD-1TI-1U
KFD2-GUT-1.D
KFD0-SCS-1.55
KFD2-DWB-Ex1.D
KFD2-PT2-EX1-5
KFA6-DWB-EX1.D
KFD2-STV4-EX2-2
Z728
Z828
KFD0-CS-Ex1.54P
KFD0-RO-Ex2
KFD2-GUT-1.D
KFD2-SCD2-1.LK
KFD2-GU-Ex1
Pepperl+Fuchs isolated barrier KFD2-ST2-EX2