2
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com
Technical Data
KFD2-SR2-Ex1.W
103367_ENG.xml 2003-03-25
Supply
Connection Power Rail or terminals 14+, 15-
Rated voltage 20 ... 30 V DC
Ripple ≤ 10 %
Rated current 20 ... 23 mA
Input
Connection terminals 1+, 2+, 3-
Rated values acc. to IEC 60947-5-6 (NAMUR, DIN 19234), 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 ≥ 20 ms / ≥ 20 ms
Lead monitoring breakage I ≤ 0,1 mA , short-circuit I > 6 mA
Output
Connection terminals 7, 8, 9
Output signal ; relay
Contact loading 253 V AC / 2 A / cos ϕ > 0.7; 126.5 V AC / 4 A / cos ϕ > 0.7; 40 V DC / 2 A resistive load
Energised/De-energised delay approx. 20 ms / approx. 20 ms
Mechanical life
10
7
switching cycles
Transfer characteristics
Switching frequency < 10 Hz
Electrical isolation
Output/Power supply reinforced insulation according to IEC 61140, rated insulation voltage 300 V
eff
Standard conformity
Climatic conditions acc. to DIN IEC 721
Directive conformity
Electromagnetic compatibility standards
Directive 89/336/EG EN 61326, EN 50081-2, NE 21
Ambient conditions
Ambient temperature -20 ... 60 °C (253 ... 333 K)
Mechanical specifications
Protection degree IP20
Mass approx. 150 g
Data for application in conjunction
with hazardous areas
EC-Type Examination Certificate PTB 00 ATEX 2080 , for additional certificates see www.pepperl-fuchs.com
Group, category, type of protection ¬ II (1) G D [EEx ia] IIC [circuit(s) in zone 0/1/2]
Input EEx ia IIC
Voltage U
0
10,5 V
Current I
0
13 mA
Power P
0
34 mW (linear characteristic)
Type of protection [EEx ia and EEx ib]
Explosion group IIA IIB IIC
External capacitance 75 µF 16,8 µF 2,41 µF
External inductance 1 H 840 mH 210 mH
Statement of conformity TÜV 99 ATEX 1493 X , observe statement of conformity
Group, category, type of protection,
Temperature classification
¬ II 3 G EEx nAC IIC T4 [device in zone 2]
Supply
Safety maximum voltage U
m
253 V AC / 125 V DC (Attention! U
m
is no rated voltage.)
Output
Contact loading 253 V AC / 2 A / cos ϕ > 0.7; 126.5 V AC / 4 A / cos ϕ > 0.7; 40 V DC / 2 A resistive load (PTB 00 ATEX 2080)
50 V AC / 4 A / cos ϕ > 0.7; 40 V DC / 2 A resistive load (TÜV 99 ATEX 1493 X)
Safety maximum voltage U
m
253 V AC (Attention! The rated voltage can be lower)
Electrical isolation
Input/Output safe electrical isolation acc. to EN 50020, voltage peak value 375 V
Input/Power supply safe electrical isolation acc. to EN 50020, voltage peak value 375 V
Directive conformity standards
Directive 94/9 EU EN 50014, EN 50020, EN 50021
Entity parameter
Certification number J.I.3002773
FM control drawing No. 116-0035
Suitable for installation in division 2 yes
Connection terminals 1, 3; 2, 3; 4, 6; 5, 6
Input I
Voltage V
OC
12,9 V
Current I
t
19,8 mA
