diagrams on page 3
Measurement accuracy .......................................................±2 %
Rated continuous thermal current
I
cth
...................................42 A
Rated short-time thermal current
I
th
............................ 2.4 kA/1 s
Rated dynamic current
I
dyn
.........................................6 kA/40 ms
Measuring ranges
Measuring range 1 ...........................................................5 A rms
Permanent overload capacity ................................10.5 A rms
............................................................................. 14.5 A peak
Scaling ....................................................... 5 A/50 mA, 100:1
Measuring range 2 .........................................................10 A rms
Permanent overload capacity ...................................21 A rms
............................................................................. 29.5 A peak
Scaling ...................................................... 10 A/50 mA, 200:1
Measuring range 3 .........................................................25 A rms
Permanent overload capacity ...................................42 A rms
................................................................................ 59 A peak
Scaling ...................................................... 25 A/50 mA, 500:1
Displays
Multicolour LED ...........................................................red, green
Output
Name ........................................................................S1 (k), S2 (l)
Installation instructions measuring current
transformer
I
C
aution
!
Device damage due to interference
pulses!
The connecting cable (supply, analo-
gue interface, ...) must not be routed directly
past the current transformer core.
i
Do not route any shielded cables through the
measuring current transformer.
The measuring current transformer must be connec-
ted to the corresponding evaluator before the first
use and before commissioning of the monitored ins-
tallation. Pay attention to the following:
The cables must be aligned with the centre of the measuring
current transformer.
All current-carrying cables must be routed through the meas-
uring current transformer.
Never route an existing protective conductor through the
measuring current transformer.
PE
L1
L2
L3
N
P1 (K): YE
P2 (L): GY
*
*
The primary conductors may only be bent from the specified
minimum distance. The minimum bending radius specified by
the manufacturers for the conductors used must be observed.
Distance to 90° angle = 2 * outer diameter
Technical data
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
Definitions
Measuring circuit (IC1) ..primary conductors routed through the
current transformer
Secondary (IC2) ............................................ connections X plug
Rated voltage ......................................................................800 V
Overvoltage category ............................................................... III
Area of application ........................................... ≤ 2000 m AMSL
Rated impulse voltage ( IC1/IC2) ...........................................8 kV
Rated insulation voltage (reinforced insulation; IC1/IC2)
........................................................................................... 800 V
Pollution degree ........................................................................2
Supply voltage CTUB103
Description ...................................................................24 V, GND
Supply voltage
U
s
........................................................... DC 24 V
Operating range of
U
s
........................................................±20 %
Ripple
U
s
............................................................................≤ 1 %
Power consumption ........................................................≤ 5.3 W
Inrush current ...........................................................1 A for 1 ms
Measuring circuit
Internal diameter measuring current transformer see dimension
i
Application in railway vehicles/DIN EN 45545-2:2016!
If the horizontal or vertical distance to adjacent components which do not meet the requirements in table
2 of DIN EN 45545-2 is less than 20 mm or less than 200 mm respectively, they are to be regarded as
grouped. Refer to DIN EN 45545-2 chapter 4.3 Grouping rules.
6
CTUB103_D00410_02_M_XXEN / 09.2022
LINETRAXX® CTUB103
