Kamstrup M-Bus Master MultiPort 250D User Manual

19Kmstrup A/S • 5512853_C1_GB_01.2017
M-Bus Mster MultiPort 250D
4.3.1 Cble
The cble resistnce nd cpcity must be s low s possible. The thicker the cble, the lower the resistnce. The
thicker the cble, the higher the cpcity.
An M-Bus cble must s  minimum be ble to hndle 50 V nd 500 mA.
Dimeter (mm ø) Cross section (mm
2
)
Resistnce in Ohm
per 1,000 metres
Length in metres per Ohm
0.5 0.20 90 11
0.65 0.33 53 19
0.8 0.50 35 29
1.0 0.79 23 45
1.13 1.00 18 57
1.26 1.25 14 71
1.39 1.52 12 87
1.6 2.0 8.7 115
Exmples of resistnce in copper cble.
Plese note tht the resistnce in copper depends on its purity. The purer the copper, the lower its resistnce.
LiYY 2x0.34 mm
2
2x0.50 mm
2
2x0.75 mm
2
2x1.0 mm
2
2x1.5 mm
2
Current lod Mx 4.5 A Mx 6 A Mx 10 A Mx 12 A Mx 18 A
Cble resistnce 56 /km 39 /km 26 /km 20 /km 12 /km
Cpcity 110 nF/km 120 nF/km 120 nF/km 120 nF/km 120 nF/km
J-Y(St)YY 2x0.60 mm
2
2x0.80 mm
2
Current lod - -
Cble resistnce 65 /km 37 /km
Cpcity 120 nF/km 100 nF/km
Exmples of cble types.

Kamstrup M-Bus Master MultiPort 250D Specifications

General

Brand	Kamstrup
Model	M-Bus Master MultiPort 250D
Category	Industrial Equipment
Language	English