Bender LINETRAXX CTUB103 Series User manual

Manual ENCTUB103_D00410_02_M_XXEN / 09.2022
LINETRAXX® CTUB103
AC/DC sensitive measuring current transformer

Intended use
The AC/DC sensitive measuring current transformers
of the CTUB103 series convert system leakage and
fault currents into an evaluable measurement signal.
The devices are suitable for detecting fault currents
with smooth DC components. They consist of a
CTBC… measuring current transformer core and a
CTUB103 electronic module, which can be combined
to suit the application. The measuring current trans-
formers can be used in DC, AC and 3(N)AC systems as
well as in high-resistance grounded systems for mo-
nitoring the star point. The evaluation in resistance
grounded systems is carried out with devices of the
NGRM… series, to which the measuring current
transformers are connected.
General safety instructions
Part of the device documentation in addition to this
manual is the enclosed „Important safety instructions
for Bender products“.
Mounting, connection and commissioning are to be
carried out by electrically skilled persons only! It is es-
sential to follow the existing safety instructions.
I Danger! Indicates a high risk of danger that
will result in death or serious injury if not
avoided.
I Caution! Indicates a low-level risk that can
result in minor or moderate injury or dama-
ge to property if not avoided.
i
Information can help to optimise the use of
the product.
Device features
• Multicolour LED for operation, fault and status
messages
• Electronic module can be exchanged without me-
chanical separation of the primary conductors
• Monitoring of the connection to the measuring
current transformer
• Evaluator: NGRM500, NGRM700
2 CTUB103_D00410_02_M_XXEN / 09.2022
LINETRAXX® CTUB103

Dimension diagrams
Mountings
Assembly
Slide the electronic module onto the plug contacts of the measuring current transformer.
Dimensions [mm (in)],
Tolerance: ±0,5 mm
Typ a b c d e f g
A
CTUB103-CTBC35
97 (3.82) 130 (5.12) 47 (1.85) ø 35 (ø 1.38) 46 (1.81) 61 (2.40) -
B
CTUB103-CTBC60
126 (4.96) 151 (5.94) 57 (2.24) ø 60 (ø 2.36) 56 (2.20) 78 (3.07) -
C
CTUB103-CTBC120
188 (7.40) 225 (8.86) 96 (3.78) ø 120 (ø 4.72) 65 (2.56) 96 (3.78) 139 (5.47)
DCTUB103 74 (2.91) 44 (1.73) 30 (1.18) 32 (1.26) 4,6 (0.18)
b
c
d
a
e
d
e
f
c
b
a
d
e
f
c
b
a
g
a
d
e
c
f
b
a
b
c
CTBC35
a
b
c
CTBC60
a
b
c
CTBC120
Dimensions [mm (in)],
Tolerance: ±0,5 mm
Typ a b c
CTBC35 49
(1.93)
49,80
(1.96)
2 x ø 5,5
(2 x ø 0.22)
CTBC60 56
(2.20)
66
(2.60)
3 x ø 6,5
(3 x ø 0.26)
CTBC120 103
(4.05)
81
(3.19)
4 x ø 6,5
(4 x ø 0.26)
2
1
A B C
D
LINETRAXX® CTUB103
CTUB103_D00410_02_M_XXEN / 09.2022 3

Index Action LED
6 Release the "T" button (9). ashes
red
quickly
7
Calibration successful lights
green
Calibration not successful: repeat calibration ashes
red
Device view
No. CTUB103 Note
1
Terminal X
S1 (k) Connection measuring current
transformer core/NGRM…
2S2 (l)
3-Not in use
4-
524V Supply voltage US
6GND
7-Not in use
8-
9ButtonT Oset calibration (see below)
10 Combined LED
lights green normal operation
ashes red device error; USis connected, no connection to CTBC.
Check the connection between CTUB and CTBC, if necessary, snap on the electronic module
again. If LED still ashes red: Contact Service please.
11
Potentiometer
for adjusting the
measuring range
Measuring range
Scaling
5 A 5 A/50 mA 100:1
10 A 10 A/50 mA 200:1
25 A 25 A/50 mA 500:1
1
11
10 9
2 3 4
5678
Offset-Calibration
i
For measuring current transformer cores with an internal diameter ≥ 120 mm, an offset calibration should
always be carried out before the first commissioning. Note that during the offset calibration the system is
switched off and no current flows through the measuring current transformer. For safety reasons, offset
calibration cannot be performed if a current > 15 mA flows through the measuring current transformer
during offset calibration.
Index Action LED
1 Disconnect X plug (1…8) or interrupt US (24V). o
2 Press and hold the "T" button (9). o
3 Connect X plug (1…8) or switch on US (24V).
Continue to hold the "T" button (9) down. lights red
4 Continue to hold the "T" button (9) down. ashes
red
5 Continue to hold the "T" button (9) down. ashes
red
quickly
4 CTUB103_D00410_02_M_XXEN / 09.2022
LINETRAXX® CTUB103

Wiring diagram CTUB103
IDanger of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
- An electric shock
- Damage to the electrical installation
- Destruction of the device
Before installing and connecting the device, make sure that the installation has been de-ener-
gised. Observe the rules for working on electrical installations. Observe the information on no-
minal voltage and supply voltage specified in the technical data!
Connect the device according to the wiring diagram. Please observe the technical data.
CTUB103
NGRM …
24V GND
S1(k)S2(l)
24V GNDC50m
24V GND
S1(k)S2(l)
NGR
Rs (G1)
E (G)
N
CD...
N
L1
L2
L3
CTBCx
LINETRAXX® CTUB103
CTUB103_D00410_02_M_XXEN / 09.2022 5

diagrams on page 3
Measurement accuracy.......................................................±2 %
Rated continuous thermal current Icth ...................................42 A
Rated short-time thermal current Ith............................ 2.4 kA/1 s
Rated dynamic current Idyn .........................................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 Caution! 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 Us........................................................... DC 24 V
Operating range of Us........................................................±20 %
Ripple Us............................................................................≤ 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

Max. voltage......................................................................±10 V
Max. current..................................................................±100 mA
Max. cable length ................................................................30 m
Load......................................................................................68 Ω
Environment/EMC
EMC ..........................................................................IEC 61000-6
Operating temperature ............................................ -25…55 °C
Classification of climatic conditions acc. to IEC 60721 (ex-
cept condensation and formation of ice)
Stationary use (IEC 60721-3-3) .............................................3K5
Transport (IEC 60721-3-2) ...................................................2K11
Long-term storage (IEC 60721-3-1) ...................................1K22
Classification of mechanical conditions acc. to IEC 60721
Stationary use (IEC 60721-3-3).............................................3M4
Transport (IEC 60721-3-2) ................................................... 2M4
Long-term storage (IEC 60721-3-1) .................................. 1M12
Connection
Use 60 °C/75 °C copper lines only.
X plug
Manufacturer .................................................... Phoenix Contact
Type .........................................................DFMC 1.5/4-ST-3.5 BK
The connection conditions of the manufacturer apply.
Connection properties
rigid ......................................0.2…1.5 mm² (AWG 24…16)
flexible ..................................0.2…1.5 mm² (AWG 24…16)
with ferrule ............................................... 0.25…0.75 mm²
Mounting CTBC…
Screw type
CTBC35, CTBC60................................... DIN EN ISO 7045 - M5
CTBC120 .............................................. DIN EN ISO 7045 - M6
Washer type
CTBC35, CTBC60............................. DIN EN ISO 7089/7090 - 5
CTBC120 ........................................ DIN EN ISO 7089/7090 - 6
Tightening torque
CTBC35........................................................................ 0.6 Nm
CTBC60, CTBC120 .......................................................... 1 Nm
Other
Operating mode ........................................continuous operation
Mounting ................................................................ any position
Degree of protection, built-in components (DIN EN 60529)..IP40
Degree of protection, terminals (DIN EN 60529)...................IP20
Flammability class ....................................................... UL94 V-0
Software .............................................................................D591
Weight
CTUB103- CTBC35......................................................≤ 310 g
CTUB103- CTBC60......................................................≤ 530 g
CTUB103- CTBC120 ................................................ ≤ 1460 g
Odering information
CTUB103-Sets
ø CT Set Zulässiger Mess-
bereich Art.-No.
35 mm CTUB103-CTBC35 5 A, 10 A B78120030
60 mm CTUB103-CTBC60 5 A, 10 A, 25 A B78120031
120 mm CTUB103-CTBC120 5 A, 10 A, 25 A B78120032
Accessories
Power supplies
max. CTs Type Art. No.
4
STEP-PS/1 AC/24 DC/0.5
B94053110
14
STEP-PS/1 AC/24 DC/1.75
B94053111
34
STEP-PS/1 AC/24 DC/4.2
B94053112
Replacement parts
Measuring current transformer cores
ø Wandler
Typ
Art. No.
35 mm
CTBC35
B98120003
CTBC35P
B98120004
60 mm
CTBC60
B98120005
CTBC60P
B98120006
120 mm
CTBC120
B98120007
CTBC120P
B98120020
Electronic-Modules
U
sType Art. No.
DC 24V
CTUB103
B78120052
Required terminals are optionally available.
The variant B78120052 of the CTUB10x series meets
the requirements of DIN EN 45545-2.
LINETRAXX® CTUB103
CTUB103_D00410_02_M_XXEN / 09.2022 7

LINETRAXX® CTUB103
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Nachdruck und Vervielfältigung
nur mit Genehmigung des Herausgebers.
Bender GmbH & Co. KG
Postfach 1161 • 35301 Grünberg • Deutschland
Londorfer Str. 65 • 35305 Grünberg • Deutschland
Tel.: [phone] • Fax: [phone]
E-Mail: [email protected] • www.bender.de
All rights reserved.
Reprinting and duplicating
only with permission of the publisher.
Bender GmbH & Co. KG
PO Box 1161 • 35301 Grünberg • Germany
Londorfer Str. 65 • 35305 Grünberg • Germany
Tel.: [phone] • Fax: [phone]
E-Mail: [email protected] • www.bender.de
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