Switch Amplifier KFA5-SR2-Ex2.W Assembly Features * * * * * * * 2-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 terminals blue 1 2 4 5 LED yellow: Relay output I Function LED red: LB/SC channel I 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. The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit. LED yellow: Relay output II LED red: LB/SC channel II 3 6 LED green: Power supply KFA5-SR2-Ex2.W 1 OUT CHK PWR 2 Switch S1 (Mode of operation channel I) S1 S2 S3 I II Switch S2 (Mode of operation channel II) 7 8 9 10 11 12 13 14 15 Switch S3 (LB/SC-monitoring) Removable terminals green During an error condition, the relays revert to their deenergized state and the LEDs indicate the fault according to NAMUR NE44. 2 Release date 2015-02-19 11:47 Date of issue 2015-03-05 103370_eng.xml Connection KFA5-SR2-Ex2.W 1+ I 10 k 10 k 400 R 2 k 2+ II 400 R 2 k 10 k I 10 11 12 II 3- 4+ 10 k 7 8 9 5+ 6- 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-Ex2.W General specifications Signal type Digital Input Supply Connection Rated voltage Power loss terminals 14, 15 Un Power consumption 103.5 ... 126 V AC , 45 ... 65 Hz 1.2 W 1.3 W Input Connection terminals 1+, 2+, 3-; 4+, 5+, 6- 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 output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12 Output I, II 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 Output/Output 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 2015-03-05 103370_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/input not available 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 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 KFA5-SR2-Ex2.W FM approval Control drawing 116-0035 UL approval Control drawing 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 2015-03-05 103370_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-Ex2.W Configuration Switch position S 1 2 1 4 2 5 3 6 3 1 Function with high input current I with low input current II Mode of operation Output II (relay) energized with high input current I with low input current II Line fault detection OUT CHK PWR 2 Operating status 3 9 12 15 I II 2 3 8 11 14 ON OFF 1 2 7 10 13 S1 S2 S3 1 S1 S2 S3 Position Mode of operation Output I (relay) energized 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 2015-03-05 103370_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-Ex2.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 2015-03-05 103370_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