Serviceline Industriële Sensoren
Serviceline Explosiebeveiliging

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This product has been replaced.Go to replacement product KFD2-SR2-Ex2.W
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Isolated Switch Amplifier KFD2-SR2-Ex2.W

  • 2-channel
  • Control circuit EEx ia IIC
  • Reversible mode of operation
  • 1 signal output with 1 changeover contact per channel
  • EMC acc. to NAMUR NE 21

De complete datasheet als PDF downloaden:

Technische gegevens KFD2-SR2-Ex2.W

24 V DC:
ConnectionPower Rail or terminals 14+, 15-
Rated voltage20 ... 30 V DC
Ripple≤ 10 %
Rated current≤ 50 mA
Power dissipation0.7 W
Power consumption< 1.3 W
Connectionterminals 1+, 3-; 4+, 6-
Rated valuesacc. to EN 60947-5-6 (NAMUR), see system description 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. 20 ms / min. 20 ms
Line fault detectionbreakage I ≤ 0.1 mA
Connectionoutput I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12
Output I, IIsignal ; relay
Contact loading253 V AC/2 A /cos φ > 0.7; 40 V DC/2 A resistive load;
Energized/De-energized delayapprox. 20 ms / approx. 20 ms
Mechanical life107 switching cycles
Transfer characteristics
Switching frequency≤ 10 Hz
Directive conformity
Electromagnetic compatibilityStandards
Directive 89/336/EECacc. to EN 50081-2 / EN 50082-2
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Massapprox. 150 g
Data for application in connection with hazardous areas
EC-Type Examination CertificatePTB 00 ATEX 2080 ; for additional certificates see
Group, category, type of protectionEx-Hexagon II (1)GD [EEx ia] IIC [circuit(s) in zone 0/1/2]
Directive conformityStandards
Directive 94/9/ECEN 50014, EN 50020

Documents: KFD2-SR2-Ex2.W

Manual Isolated Barriers K-systemENGPDF760 KB
Manuel pour Barrières Isolées de Système KFRAPDF759 KB
Handbuch Trennbarrieren K-SystemGERPDF745 KB
Manual Isolated Barriers K-systemRUSPDF4107 KB

Approvals+Certificates: KFD2-SR2-Ex2.W

Europe PTB ATEX Category (1) GDPTB 00 ATEX 2080PDF2272 KB
USA FMFM Listed (Approval Guide)LINK---
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