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Product overview
Pepperl Fuchs Isolated Barriers K-System KFD2-SOT3-Ex2.IO-Y1
K-System interface technology
Solving a wide range of applications in one system, our K-System guarantees a reliable and economical signal transmission between your field device and the control system. Whether your plans include a single isolating module or a large scale system integration, application-oriented solutions characterize the entire K-System product range.

KFD2-SOT3-Ex2.IO-Y1
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, Isolated passive transistor output, TTL level, Line fault detection (LFD), Reversible mode of operation, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex1.R1
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs (resistive), Application-specific outputs, Line fault transparency (LFT), Usable as signal splitter (1 input and 2 outputs), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex1.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2.R1
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive), Application-specific outputs, Line fault transparency (LFT), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2.SP
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SOT-Ex1.LB.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs, Usable as signal splitter (1 input and 2 outputs), Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-ST-Ex1.LB.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 active transistor outputs, Usable as signal splitter (1 input and 2 outputs), Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-ST-Ex2.SP
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 active transistor outputs, Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KFA4-SR2-Ex2.W
Switch Amplifier
2-channel, Control circuit EEx ia IIC, Reversible mode of operation, 1 relay output with 1 changeover contact per channel, EMC acc. to NAMUR NE 21, LB/SC monitoring, Up to SIL 2 acc. to IEC 61508/IEC 61511, Input: NAMUR sensor, Rated voltage: 90 ... 110 V AC , 45 ... 65 Hz, Output: relay, SIL/IEC 61508
Other selection model for Pepperl Fuchs safe barrier K-system as below:
If you have any other question, please send me an inquiry!
Pepperl Fuchs Isolated Barriers K-System KFD2-SOT3-Ex2.IO-Y1
K-System interface technology
Solving a wide range of applications in one system, our K-System guarantees a reliable and economical signal transmission between your field device and the control system. Whether your plans include a single isolating module or a large scale system integration, application-oriented solutions characterize the entire K-System product range.

KFD2-SOT3-Ex2.IO-Y1
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, Isolated passive transistor output, TTL level, Line fault detection (LFD), Reversible mode of operation, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex1.R1
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs (resistive), Application-specific outputs, Line fault transparency (LFT), Usable as signal splitter (1 input and 2 outputs), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex1.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2.R1
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive), Application-specific outputs, Line fault transparency (LFT), Housing width 12.5 mm, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SON-Ex2.SP
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs (resistive acc. to EN 60947-5-6), Line fault transparency (LFT), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-SOT-Ex1.LB.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 passive transistor outputs, Usable as signal splitter (1 input and 2 outputs), Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-ST-Ex1.LB.SP
Switch Amplifier
1-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR input, 2 active transistor outputs, Usable as signal splitter (1 input and 2 outputs), Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KCD2-ST-Ex2.SP
Switch Amplifier
2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 active transistor outputs, Reversible mode of operation, Line fault detection (LFD), Housing width 12.5 mm, Connection via spring terminals, Up to SIL 2 acc. to IEC 61508, Input: NAMUR sensor, Rated voltage: 19 ... 30 V DC, Output: Transistor, SIL/IEC 61508
KFA4-SR2-Ex2.W
Switch Amplifier
2-channel, Control circuit EEx ia IIC, Reversible mode of operation, 1 relay output with 1 changeover contact per channel, EMC acc. to NAMUR NE 21, LB/SC monitoring, Up to SIL 2 acc. to IEC 61508/IEC 61511, Input: NAMUR sensor, Rated voltage: 90 ... 110 V AC , 45 ... 65 Hz, Output: relay, SIL/IEC 61508
Other selection model for Pepperl Fuchs safe barrier K-system as below:
• 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-DU-Ex1.D
• 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-Ex1.W.LB
• 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-SOT-Ex2.SP
• 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-SH-Ex1.T
• 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
• KFA4-SR2-Ex2.W
• KFA5-DU-Ex1.D
• KFA4-SR2-Ex1.W
• KFA4-SR2-Ex1.W.LB
• KFD2-SOT2-Ex1.LB
• KFD2-SOT2-Ex1.LB.IO
• KFD2-SOT2-Ex2
• KFD2-SOT2-Ex2.IO
• KFD2-SOT2-Ex2.IO-Y181008
• KFD2-SR2-Ex2.2S
• KFD2-ST2-Ex1.LB
• KFD2-ST2-Ex2
If you have any other question, please send me an inquiry!