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  6. KFD2-SRA-Ex4

KFD2-SRA-Ex4 Switch Amplifier

Key Benefits at a Glance

  • 4-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Dry contact or NAMUR inputs
  • 50 % less wiring, 2:1 technology
  • Relay contact output
  • Line fault detection (LFD)
  • Reversible mode of operation

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In stock624.00 USD Net price—your individual price will be shown during checkout process.
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Product photo: Switch Amplifier KFD2-SRA-Ex4
Product photo: Switch Amplifier KFD2-SRA-Ex4
Approval
Approval
Product Compliance: Europe – CE
Product Compliance: USA - cULus
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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DatasheetFunctionClassificationInformative LiteratureProduct DocumentationDesign / SimulationApprovalsRelated Products

Technical data of KFD2-SRA-Ex4

Signal typeDigital Input
ConnectionPower Rail or terminals 14+, 15-
Rated voltageUr19 ... 30 V DC
Ripple≤ 10 %
Rated currentIr45 ... 70 mA
Power dissipation1.2 W
Connection sidefield side
Connectionterminals 1-, 2+, 3-; 4-, 5+, 6-
Rated valuesacc. to EN 60947-5-6 (NAMUR), see manual for electrical data
Open circuit voltage/short-circuit currentapprox. 8 V DC / approx. 8 mA
Switching point/switching hysteresis1.2 ... 2.1 mA / approx. 0.2 mA
Pulse/Pause ratiomin. 35 ms / min. 35 ms (non-AC operation) min. 70 ms / min. 70 ms (AC operation)
Line fault detectionbreakage I ≤ 0.15 mA , short-circuit I > 6 mA
Connection sidecontrol side
Connectionoutput I: terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12
Output I ... IVSignal I ... Signal IV ; relay
Contact loading253 V AC/2 A /cos φ > 0.7; 40 V DC/2 A resistive load;
Energized/De-energized delayapprox. 30 ms / approx. 30 ms
Mechanical life5 x 106 switching cycles
Collective error messagePower Rail
Switching frequency≤ 10 Hz (non-AC operation) ≤ 3 Hz (AC operation)
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/Outputbasic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Display elementsLEDs
Control elementsDIP switch
Configurationvia DIP switches
Labelingspace for labeling at the front
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529:2001
InputEN 60947-5-6:2000
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 150 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
Height119 mm
Width20 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
EU-type examination certificateZELM 99 ATEX 0009
MarkingEx-Hexagon II (1)G [Ex ia Ga] IIC
[exsign] II (1)D [Ex ia Da] IIIC
[exsign] I (M1) [Ex ia Ma] I
InputEx ia IIC
VoltageUo10 V
CurrentIo14 mA
PowerPo35 mW (linear characteristic)
Supply
Maximum safe voltageUm40 V DC (Attention! Um is no rated voltage.)
Output
Contact loading230 V AC + 10 % / 2 A / 100 VA / cos φ ≥ 0.7; 40 V DC / 2 A resistive load
Fault indication output
Maximum safe voltageUm40 V DC
Galvanic isolation
Input/inputnot available
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supplysafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 50303:2000
UL approval
Control drawing116-0145
IECEx approval
IECEx certificateIECEx TUN 04.0003
IECEx marking[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
General Notes
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