Isolated Switch Amplifier | KFD2-SRA-Ex2
Артикул: KFD2-SRA-Ex2 Isolated Switch Amplifier | KFD2-SRA-Ex2 Pepperl-Fuchs
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Control circuit EEx ia IIC 24 V DC nominal supply voltage Reversible mode of operation Lead monitoring (short-circuit LK and interruption LB) with LED indicator (red flashing), switching output and signal on Power Rail 50 % less wiring, 2:1 technology 2 relay outputs, 1 NO contact per channel, grouped into single-pole pairs EMC acc. to NAMUR NE 21
Datasheet as PDF in following languages:
Technical Data: KFD2-SRA-Ex2 Product Description 2-channel Supply Connection Power Rail or terminals 14+, 15- Rated voltage 20 ... 30 V DC Ripple ≤ 10 % Rated current 45 ... 70 mA Power loss approx. 1.26 W Input Connection terminals 1-, 2+, 3- Rated values acc. to EN 60947-5-6 (NAMUR), see system description for electrical data 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 Pulse/Pause ratio min. 20 ms / min. 20 ms Line fault detection breakage I ≤ 0.15 mA Output Connection output I: terminals 7, 8 ; output II: terminals 8, 9 Output I, II Signal I/II ; relay Contact loading 253 V AC/2 A /cos φ > 0.7; 40 V DC/2 A resistive load; Energized/De-energized delay approx. 20 ms / approx. 20 ms Mechanical life 5 x 106 switching cycles Collective error message Power Rail Transfer characteristics Switching frequency ≤ 10 Hz (non-AC operation) ≤ 3 Hz (AC operation) Directive conformity Electromagnetic compatibility Directive 89/336/EEC EN 61326 Conformity Insulation coordination EN 50178 Electrical isolation EN 50178 Electromagnetic compatibility NE 21 Protection degree IEC 60529 Ambient conditions Ambient temperature -20 ... 60 °C (-4 ... 140 °F) Mechanical specifications Protection degree IP20 Mass approx. 150 g Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) Data for application in connection with Ex-areas EC-Type Examination Certificate ZELM 99 ATEX 0009 Group, category, type of protection Directive conformity Directive 94/9/EC EN 50014, EN 50020
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II (1)G [EEx ia] IIC
