1 KFD2-SR2-Ex1.W

Isolated switch amplifierKFD2-SR2-Ex1.WConnectionInput I EEx ia IIC• 1-channel• Control circuit EEx ia IIC• Reversible mode of operation• 1 relay output with 1 changeovercontact• EMC acc. to NAMUR NE 21• LB/SC monitoring• LB/SC collective error message viaPower Rail• Up to SIL2 acc. to IEC 61508KFD2-SR2-Ex1.WFunctionThe transformer isolated barriertransfers digital signals from thehazardous area. Sensors perEN 60947-5-6 (NAMUR) andmechanical contacts may be used asalarms. Control circuits are monitoredfor lead breakage (LB) and short circuit(SC). The external faults are indicatedaccording to NAMUR NE44 by a redflashing LED.For type KFD2-SR2-Ex1.W, an LB/SCcollective error message is in additiontransferred through the Power Rail tothe power feed module.The intrinsically safe input is perEN 50020 safely isolated from theoutput and the power supply. The relayoutput is in accordance with IEC 61140safely isolated from the power supply.without SCwithout LB, SCComposition1+ 3-10 kΩ1+ 3-1+1+S12+Iyellow400 Ω ≤ R ≤ 2 kΩ10 kΩ2+ 3-&3-LBSCII3-redS37 8 9Outputgreen+ -14 15PowersupplySwitch S3 in position ISwitch S3 in position ISwitch S3 in position ISwitch S3 in position II+-PowerRailLB/SCcollectiveerror messageonlyKFD2-SR2-Ex1.WHazardous areaRelease date 2005-09-29 16:06 Date of issue 2005-12-06 132958_ENG.xmlSafe areaSubject to reasonable modifications due to technical advances.Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com1

Technical dataKFD2-SR2-Ex1.WRelease date 2005-09-29 16:06 Date of issue 2005-12-06 132958_ENG.xmlSupplyConnection Power Rail or terminals 14+, 15-Rated voltage20 ... 30 V DCRipple ≤ 10 %Rated current≤ 30 mAPower loss0.7 WPower consumption< 0.9 WInputConnection terminals 1+, 2+, 3-Rated valuesacc. to EN 60947-5-6 (NAMUR), see system description for electrical dataOpen-circuit voltage/short-circuit current approx. 8 V DC / approx. 8 mASwitching point/Switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mAPulse/Pause ratio≥ 20 ms / ≥ 20 msLead monitoringbreakage I ≤ 0.1 mA , short-circuit I > 6 mAOutputConnection terminals 7, 8, 9OutputContact loadingsignal ; relay253 V AC / 2 A / cos ϕ > 0.7; 126.5 V AC / 4 A / cos ϕ > 0.7; 40 V DC / 2 A resistive loadMinimum switch current2 mA / 24 V DCEnergized/de-energized delayapprox. 20 ms / approx. 20 msMechanical life10 7 switching cyclesTransfer characteristicsSwitching frequency< 10 HzElectrical isolationOutput/power supplyreinforced insulation acc. to IEC 61140, rated insulation voltage 300 V effDirective conformityElectromagnetic compatibilityDirective 89/336/EC EN 61326Low voltageDirective 73/23/EEC IEC 62103ConformityElectromagnetic compatibility NE 21Protection degree IEC 60529Protection against electric shock IEC 61140Ambient conditionsAmbient temperature -20 ... 60 °C (253 ... 333 K)Mechanical specificationsProtection degreeIP20Massapprox. 150 gDimensions20 x 118 x 115 mm (0.8 x 4.6 x 4.5 in)Data for application in conjunctionwith hazardous areasEC-Type Examination Certificate PTB 00 ATEX 2080 , for additional certificates see www.pepperl-fuchs.comGroup, category, type of protection ¬ II (1) G D [EEx ia] IIC [circuit(s) in zone 0/1/2]InputEEx ia IICVoltage U 0 10.5 VCurrent I 0 13 mAPower P 0 34 mW (linear characteristic)SupplySafety maximum voltage U m253 V AC / 125 V DC (Attention! U m is no rated voltage.)Type of protection [EEx ia and EEx ib]Explosion group IIA IIB IICExternal capacitance 75 µF 16.8 µF 2.41 µFExternal inductance 1 H 840 mH 210 mHOutputContact loading253 V AC / 2 A / cos ϕ > 0.7; 126.5 V AC / 4 A / cos ϕ > 0.7; 40 V DC / 2 A resistive loadSafety maximum voltage U m253 V AC (Attention! The rated voltage can be lower.)Statement of conformity Pepperl+Fuchs starting from february 2005Group, category, type of protection ¬ II (3) G (EEx nL) IIC X [circuit(s) in zone 2]Input[EEx nL] IICVoltage U o 10.5 VCurrent I o 13 mAPower P o 34 mW (linear characteristic)Type of protection [EEx nL]Subject to reasonable modifications due to technical advances.Copyright Pepperl+Fuchs, Printed in GermanyPepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com2