2

Subject to reasonable modifications due to technical advances.

Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com

Technische Daten

KFD2-SRA-Ex4

KFD2-SRA-Ex2

Power supply

Connection type

Power Rail or terminals 14+, 15-

20 ... 30 V DC

40 V DC

Ripple

≤ 10 %

Rated operational current

45 ... 70 mA

Power loss

approx. 1.26 W

Input (intrinsically safe)

Connection type

terminals 1-, 2+, 3-; 4-, 5+, 6-

terminals 1-, 2+, 3-

Nominal data

in accordance with IEC 60947-5-6 (NAMUR,

DIN 19234); see system description for electri-

cal data

in accordance with IEC 60947-5-6 (NAMUR,

DIN 19234); see system description for electri-

cal data

Input pulse length/Input pulse interval

≥ 20 ms /≥ 20 ms

≥ 20 ms /≥ 20 ms

Lead monitoring

breakage J

≤ 0.15 mA

breakage J

≤ 0.15 mA

Details of certificate of conformity

Certification number

ZELM 99 ATEX 0009

Group, category, ignition protection method

¬ II (1) G [EEx ia] IIC

10 V

14 mA

35 mW (linear characteristic)

Allowable circuit values

Ignition protection class, category [EEx ia]

Explosion group

IIC

External capacitance

3

µF

External inductance

180 mH

Output (not intrinsically safe)

Connection type

output I: terminals 7, 8; output II: terminals 8,

9; output III: terminals 10, 11; output IV: termi-

nals 11, 12

output I: terminals 7, 8; output II: terminals 8, 9

Output I and II

Signal I/II; relay

Output I up to IV

Signal I ... Signal IV; relay

Contact loading

253 V AC / 2 A / cos

ϕ > 0.7; 40 V DC /

1 A resistive load

253 V AC / 2 A / cos

ϕ > 0.7; 40 V DC /

1 A resistive load

Mechanical life

5 x 10

5 x 10

Energized/De-energized delay

approx. 20 ms / approx. 20 ms

approx. 20 ms / approx. 20 ms

Collective error message

Power Rail

Power Rail

Transfer characteristics

Switching frequency

≤ 10 Hz (non-AC operation) ≤ 3 Hz (AC operation)

Galvanic isolation

Input/Output

safe galvanic isolation acc. to EN 50020, vol-

tage peak value 375 V

safe galvanic isolation acc. to EN 50020, vol-

tage peak value 375 V

Input/Power supply

safe galvanic isolation acc. to EN 50020, vol-

tage peak value 375 V

safe galvanic isolation acc. to EN 50020, vol-

tage peak value 375 V

Output/Power supply

safe isolation acc. to DIN VDE 0106, design

basic isolation acc. to EN 50178, design isola-

Ambient conditions

Ambient temperature

-20 ... 60 °C (253 ... 333 K)

Standard conformity

Input

in accordance with IEC 60947-5-6 (NAMUR, DIN 19234); see system description for electrical

data

Coordination of insulation

accord. to DIN EN 50178

Galvanic isolation

accord. to DIN EN 50178

Climatic conditions

accord. to DIN IEC 721

Electromagnetic compatibility

accord. to EN 50081-2 / EN 50082-2

Mechanical specifications

Mass

approx. 150 g

Accessories

Power Rail

UPR-05

Power feed module 24 V DC

KFD2-EB ...

Notes

KFD2-SRA-Ex*