# General
Product type: Signal conditioner for digital signals
Brand: Pepperl+Fuchs
Series: K-System
Functions: switch amplifier, timer relay, solenoid driver, frequency converter, speed monitor, electrode relay, trip value converter, transmitter power supply
Channels: 1, 2 or 4
Installation: safe area, non-intrinsically safe circuits
# Certifications
Functional safety: up to SIL 2 (IEC/EN 61508 / IEC/EN 61511)
# Electrical
Supply: 24 V DC (Power Rail), 20–90 V DC / 48–253 V AC, 115 V AC or 230 V AC
Inputs: NAMUR sensors (EN 60947-5-6), dry contacts, level electrodes, logic inputs
Outputs: relay, active transistor or passive transistor
Output current: 600 mA per channel, 1.2 A in parallel (KFD2-SL-4)
Contact rating: 253 V AC / 2 A, 40 V DC / 2 A (KFA6-ER)
Diagnostics: line fault detection (LFD), LEDs to NAMUR NE 44
# Mechanical
Width: 12.5 mm or 20 mm
Terminals: screw, removable screw or push-in spring
{"v":1,"colonne":[{"nome":"Function","valori":["Conductive Switch Amplifier","Current/Voltage Trip Value","Frequency Converter with Direction and Synchronization Monitor","Frequency Converter with Trip Values","Rotation Speed Monitor","SMART Transmitter Power Supply","Solenoid Driver, Power Amplifier","Strain Gauge Converter","Switch Amplifier","Switch Amplifier, Timer Relay","Temperature Converter with Trip Values","Transmitter Power Supply"]},{"nome":"Channels","valori":["1","2","4"]},{"nome":"Output","valori":["Active trans.","Passive trans.","Relay","–"]},{"nome":"Supply","valori":["24 V DC (Power Rail)","115 V AC","230 V AC","Universal AC/DC"]},{"nome":"SIL","valori":["No","SIL 2"]}],"righe":[["KFA6-ER-1.5",0,0,2,2,0],["KFA6-ER-1.6",0,0,2,2,0],["KFD2-SL-4",6,2,3,0,1],["KFA6-ER-1.W.LB",0,0,2,2,0],["KFA6-ER-2.W.LB",0,1,2,2,0],["KFA5-ER-1.W.LB",0,0,2,1,0],["KFD2-SR2-2.2S",8,1,2,0,1],["KFD2-STC5-2",5,1,0,0,1],["KFU8-SR-1.3L.V",9,0,2,3,1],["KCD2-ST-2",8,1,0,0,1],["KCD2-SOT-2",8,1,1,0,1],["KFD2-ER-2.W.LB",0,1,2,0,0],["KFD2-ER-1.W.LB",0,0,2,0,0],["KFD2-UFC-1.D",3,0,2,0,1],["KFU8-UFC-1.D",3,0,2,3,1],["KFD2-UFT-2.D",2,1,2,0,0],["KFU8-UFT-2.D",2,1,2,3,0],["KFD2-DWB-1.D",4,0,3,0,1],["KFU8-DWB-1.D",4,0,3,3,1],["KFD2-WAC2-1.D",7,0,2,0,0],["KFD2-GUT-1.D",10,0,3,0,1],["KFU8-GUT-1.D",10,0,3,3,1],["KFD2-STC5-1",5,0,0,0,1],["KFD2-STC5-1.2O",5,0,0,0,1],["KCD2-ST-1.LB.SP",8,0,0,0,1],["KCD2-ST-2.SP",8,1,0,0,1],["KFD2-CRG2-1.D",11,0,3,0,1],["KFU8-CRG2-1.D",11,0,3,3,1],["KFD2-SR3-2.2S",8,1,2,0,1],["KFD2-GS-1.2W",1,0,2,0,0],["KCD2-STC-1",5,0,0,0,1],["KCD2-STC-1.SP",5,0,0,0,1],["KCD2-SR-1",8,0,2,0,1],["KCD2-SR-1.LB",8,0,2,0,1],["KCD2-SR-2",8,1,2,0,1],["KCD2-SR-1.LB.SP",8,0,2,0,1],["KCD2-SR-2.SP",8,1,2,0,1]],"datasheet":{"base":"https://files.pepperl-fuchs.com/webcat/navi/productInfo/pds/","pn":["096045","096046","112730","115619","115620","115621","181363","203646","213968","214247","214248","217734","217735","231193","231195","231198","231201","231206","231209","231223","231224","231226","239209","239215","242098","242099","255621","255623","262113","292461","321413","321419","70109403","70112146","70112148","70112149","70112150"],"apn":[],"noit":["096045","096046","112730","115619","115620","115621","181363","203646","213968","214247","214248","217734","217735","231193","231195","231198","231201","231223","231224","231226","239209","239215","242098","242099","255621","255623","262113","292461","321413","321419","70109403","70112146","70112148","70112149","70112150"]},"fonte":"Pepperl+Fuchs price list 2026 / official datasheets"}
