Pepperl+Fuchs KFD2-SR2-2.2S
Switch Amplifier

Pepperl+Fuchs KFD2-SR2-2.2S
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  • 2-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Dry contact or NAMUR inputs
  • Usable as signal splitter (1 input and 2 outputs)
  • 2 x 2 relay contact outputs with AND logic
  • Line fault detection (LFD)
  • Reversible mode of operation
  • Up to SIL 2 acc. to IEC 61508/IEC 61511
Item Number: KFD2-SR2-2.2S
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Connection sidecontrol side
Mechanical life108 switching cycles
Configurationvia DIP switches
Energized/De-energized delayapprox. 20 ms / approx. 20 ms
Signal typeDigital Input
Power consumption< 1.3 W
Open circuit voltage/short-circuit currentapprox. 8 V DC / approx. 8 mA
Power dissipation1 W
Rated voltage20 ... 30 V DC
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2
Pulse/Pause ratiomin. 20 ms / min. 20 ms
Output I, II, III, IVchannel 1, 2; relay
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Input/inputnot available
Safety Integrity Level (SIL)SIL 2
Connectionoutput I: terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12
Connectionscrew terminals
Ambient temperature-20 ... 60 ?°C (-4 ... 140 ?°F)
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Connectionterminals 1+, 2+, 3-; 4+, 5+, 6-
Labelingspace for labeling at the front
Collective error messagePower Rail
Switching point/switching hysteresis1.2 ... 2.1 mA / approx. 0.2 mA
Output/power supplybasic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff
Ripple≤ 10 %
Line fault detectionbreakage I ≤ 0.1 mA , short-circuit I > 6 mA
Display elementsLEDs
Optional accessories- power feed module KFD2-EB2(.R4A.B)(.SP)
- universal power rail UPR-03(-M)(-S)
- profile rail K-DUCT-GY(-UPR-03)
Rated current≤ 50 mA
Degree of protectionIP20
Electromagnetic compatibilityNE 21:2006
Contact loading50 V AC/1 A/cos φ > 0.7; 40 V DC/1 A resistive load
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Switching frequency≤ 10 Hz
Control elementsDIP-switch
ConnectionPower Rail or terminals 14+, 15-
Output/Outputbasic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff
Minimum switch current1 mA / 24 V DC
Degree of protectionIEC 60529:2001
Massapprox. 150 g
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Connection sidefield side
Rated valuesacc. to EN 60947-5-6 (NAMUR)

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