Switch Amplifier KFA5-SR2-Ex1.W Assembly Features * * * * * * * 1-channel isolated barrier 115 V AC supply Dry contact or NAMUR inputs Relay contact output Line fault detection (LFD) Reversible mode of operation Up to SIL2 acc. to IEC 61508/IEC 61511 Front view Removable terminal blue 1 2 4 5 LED yellow: Relay output 3 6 LED green: Power supply KFA5-SR2-Ex1.W Function OUT CHK PWR This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area. LED red: LB/SC Switch S1 (mode of operation) S1 S2 S3 I The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The barrier output changes state when the input signal changes state. The normal output state can be reversed using switch S1. Switch S3 is used to enable or disable line fault detection of the field circuit. II Switch S2 (no functions) 7 8 9 10 11 12 13 14 15 Switch S3 (LB/SC-monitoring) Removable terminals green During an error condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE44. 2 Release date 2015-02-19 11:47 Date of issue 2015-02-19 103371_eng.xml Connection KFA5-SR2-Ex1.W 7 8 9 1+ 2+ 10 k 10 k 3400 R 2 k 14 15 115 V AC Zone 0, 1, 2 Div. 1, 2 Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0002 Germany: +49 621 776 2222 www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com Singapore: +65 6779 9091 pa-info@sg.pepperl-fuchs.com 1 Technical data KFA5-SR2-Ex1.W General specifications Signal type Digital Input Supply Connection Rated voltage Power consumption terminals 14, 15 Un 103.5 ... 126 V AC , 45 ... 65 Hz 1W Input Connection terminals 1+, 2+, 3- Rated values acc. to EN 60947-5-6 (NAMUR) Open circuit voltage/short-circuit current approx. 8 V DC / approx. 8 mA Switching point/switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mA Line fault detection breakage I 0.1 mA , short-circuit I > 6 mA Pulse/Pause ratio 20 ms / 20 ms Output Connection terminals 7, 8, 9 Output signal, relay Contact loading 253 V AC/2 A/cos > 0.7; 126.5 V AC/4 A/cos > 0.7; 40 V DC/2 A resistive load Energized/De-energized delay approx. 20 ms / approx. 20 ms 107 switching cycles Mechanical life Transfer characteristics Switching frequency < 10 Hz Electrical isolation Input/Output reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff Input/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff Output/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff Directive conformity Electromagnetic compatibility Directive 2004/108/EC EN 61326-1:2006 Low voltage Directive 2006/95/EC EN 61010-1:2010 Conformity Electromagnetic compatibility NE 21:2006 Degree of protection IEC 60529:2001 Input EN 60947-5-6:2000 Ambient conditions Ambient temperature -20 ... 60 C (-4 ... 140 F) Mechanical specifications Degree of protection IP20 Mass approx. 150 g Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) , housing type B2 Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001 Data for application in connection with Ex-areas EC-Type Examination Certificate PTB 00 ATEX 2081 , for additional certificates see www.pepperl-fuchs.com Release date 2015-02-19 11:47 Date of issue 2015-02-19 103371_eng.xml Group, category, type of protection Input Voltage Current Power Supply Maximum safe voltage Output Ex ia Uo 10.6 V Po 51 mW (linear characteristic) Um 126.5 V AC (Attention! Um is no rated voltage.) Io Contact loading Maximum safe voltage Electrical isolation II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I 19.1 mA 253 V AC/2 A/cos > 0.7; 126.5 V AC/4 A/cos > 0.7; 40 V DC/2 A resistive load Um 253 V AC (Attention! The rated voltage can be lower.) Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V Directive conformity Directive 94/9/EC EN 60079-0:2012 , EN 60079-11:2012 International approvals FM approval Control drawing 116-0035 UL approval Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0002 Germany: +49 621 776 2222 www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com Singapore: +65 6779 9091 pa-info@sg.pepperl-fuchs.com 2 Technical data Control drawing KFA5-SR2-Ex1.W 116-0145 CSA approval Control drawing IECEx approval Approved for 116-0047 IECEx PTB 11.0031 [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I General information EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperlfuchs.com. Release date 2015-02-19 11:47 Date of issue 2015-02-19 103371_eng.xml Supplementary information Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0002 Germany: +49 621 776 2222 www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com Singapore: +65 6779 9091 pa-info@sg.pepperl-fuchs.com 3 Technical data KFA5-SR2-Ex1.W Configuration Switch position S 1 1 4 2 5 Function Mode of operation Output I (relay) energized 2 3 6 3 Position with high input current I with low input current II no function Line fault detection 1 ON I OFF II OUT CHK PWR 3 9 12 15 Operating status 2 3 8 11 14 1 2 7 10 13 S1 S2 S3 1 S1 S2 S3 I II Control circuit Input signal Initiator high impedance/ contact opened low input current Initiator low impedance/ contact closed high input current Lead breakage, lead short-circuit Line fault Release date 2015-02-19 11:47 Date of issue 2015-02-19 103371_eng.xml Factory settings: switch 1, 2 and 3 in position I Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0002 Germany: +49 621 776 2222 www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com Singapore: +65 6779 9091 pa-info@sg.pepperl-fuchs.com 4 Technical data KFA5-SR2-Ex1.W Maximum switching power of output contacts Resistive load DC Resistive load AC I (A) 4 Electrical life max. 105 switching cycles 2 1 Electrical life max. 2.5 x 105 switching cycles 0.5 0.2 20 40 100 200 115 250 U (V) Release date 2015-02-19 11:47 Date of issue 2015-02-19 103371_eng.xml The maximum number of switching cycles is depending on the electrical load and may be higher when reduced currents and voltages are applied. Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0002 Germany: +49 621 776 2222 www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com Singapore: +65 6779 9091 pa-info@sg.pepperl-fuchs.com 5