WAGO TEchDocs 765-4501/0100-0000, Manual

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765-4501/0100-0000 Connection
74 Product manual | Version: 1.1.0
8PORT IOL-A FLD EI DC 24V 2.0A
U = 2 × I × R
where:
U Voltage drop
2 Factor for feed and return lines
I Current
R
L
Cable resistance
For WAGO 4 × 1.5 mm
2
supply cables, the cable resistance R
L
per wire R
L
≤ 13.7 Ω/km.
Example of Voltage Drop for Feed and Return Lines with a Current of 8 A on the
WAGO 4 × 1.5 mm
2
Supply Cable
U = 2 × 8 A × 13.7 Ω/km = 219.2 V/km
This corresponds to a voltage drop of 2.19 V per 10 m of cable length for feed and return
lines.
Example of Voltage Drop per Wire with a Current of 16 A on a 4 × 2.5 mm
2
Supply
Cable
U = 2 × 16 A × 8.22 Ω/km = 263 V/km
This corresponds to a voltage drop of 2.63 V per 10 m of cable length.
If the resistance of the cable used is not known, it can be calculated approximately with
the following formula:
R
L
= l / (K × A)
where:
R
L
Cable resistance
I Cable length
K Cable resistance according to manufacturer’s specifications
A Cable cross-section
9.3 Connecting Cables
WAGO recommends using 765 Series connecting cables, pluggable connectors and ac-
cessories for 756 Series products, which have been tailored specifically to the WAGO I/O
System Field.
The tightening torques given in section
8
Connection Technology [
}
20] apply to the
pluggable connectors of the connecting cables.