Power repeater / power supply according to IEC 61158-2
FOUNDATION FieldbusGeneral
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
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
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Total line length = length of the trunk line + total of spurs
The total maximum line length for non-Ex applications is 1900 m.
Fuchs GmbH offers two different power supplies:
1. KLD2-STR-1.24.400.IEC, field bus power supply current with 400 mA current for
non-Ex applications
2. KLD2-STR-NI1.13.225.IEC, field bus power supply with 225 mA supply current in
"Non Incendive“ ignition protection class.
The following table shows an overview of the most important characteristic values:
To determine the exact maximum line length, please refer to the section "Voltage cal-
culation and line length“ on
of this manual. of this manual.
KLD2-STR-1.24.400.IEC KLD2-STR-NI1.13.225.IEC
Rated operational
voltage
Field side
24 V ... 26 V
12.2 V ... 13 V
Rated operational-
field bus instru-
ments current
Field side
400 mA
225 mA
max. number of
field bus instru-
ments
a
a.The actual number of field devices on a bus segment depends on the actual current consumption of the slaves. The specified numbe r of field devices is only
reached if the current consumption for each field device is 10 mA.
32
22
max. line length
b
b.The actual line length depends among other things on the cable that is used and the number and distribution of slaves.
1900 m
1900 m
min. line length
c
c.For max. output current and cable type A [0.8 mm² (18 AWG)]
852 m
323 m
