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E-Mail: [email protected] • www.bender.de
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Bender GmbH & Co. KG
PO Box 1161 • 35301 Grünberg • Germany
Londorfer Str. 65 • 35305 Grünberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-mail: [email protected] • www.bender.de
MRCDB300-series_D00343_05_Q_XXEN/01.2022
/ pdf / © B
ender G
mbH & C
o. K
G, G
erman
y – S
ubjec
t t
o change!
The specified standar
ds tak
e in
to ac
coun
t the edition v
alid un
til
02/2022
unless other
wise indic
at
ed
.
Technical data
Rated voltage .................................................................... 800 V
Overvoltage category ............................................................... III
Nominal supply voltage
U
s
...............................................DC 24 V
Operating range
U
s
............................................................±20 %
Power consumption ........................................................≤ 2.5 W
Measuring circuit
Characteristics acc. to IEC/TR 60755 ....... AC/DC sensitive, type B
Response values
I
Δn
.............refer to intended purpose on page 2
Prewarning .......................................................50 %
…100 %
I
Δn
Rated current
I
n
CTBC20 when
I
Δn
≥ 30 mA ....................................................40 A
CTBC20 when
I
Δn
≥ 300 mA ..................................................63 A
CTBC20P ................................................................................80 A
CTBC35 when
I
Δn
≥ 30 mA ....................................................80 A
CTBC35 when
I
Δn
≥ 300 mA ................................................125 A
CTBC35P ..............................................................................160 A
CTBC60 when
I
Δn
≥ 30 mA ..................................................160 A
CTBC60 when
I
Δn
≥ 300 mA ................................................250 A
CTBC60P ..............................................................................320 A
CTBC120 when
I
Δn
≥ 100 mA ..............................................330 A
CTBC120P when
I
Δn
≥ 100 mA ............................................630 A
CTBC210 when
I
Δn
≥ 300 mA ..............................................630 A
CTBC210P when
I
Δn
≥ 100 mA ............................................630 A
CTBC210P when
I
Δn
≥ 300 mA ..........................................1000 A
Measurement accuracy .......................... ±1 % of full scale value
Test winding .......................................................................... yes
Rated continuous thermal current
I
cth
...................................30 A
Rated short-time thermal current
1)
I
th
......................... 2.4 kA/1 s
Rated dynamic current
1)
I
dyn
......................................6 kA/40 ms
1)
refers to the residual current
Operating uncertainty ...................................................±17.5 %
Relative uncertainty ................................................... 0…-35 %
Outputs
Outputs .....................................................2 changeover contacts
Operating principle ..............................configurable, see manual
Switching outputs (K1, K2) .........................................250 V, 5 A
Switching capacity ..............................................1500 VA/144 W
Contact data acc. to IEC 60947-5-1
Rated operational voltage AC.................................. 250 V/250 V
Utilisation category ................................................ AC-13/AC-14
Rated operational current AC ..........................................5 A/3 A
Rated operational voltage DC ............................... 220/110/24 V
Utilisation category ..............................................................DC12
Rated operational current DC ....................................0.1/0.2/1 A
Minimum current ............................................... 10 mA at DC 5 V
Ordering details
Suitable measuring current transformer cores
ø
current
transformers
Type
Art. No.
20 mm
CTBC20
B98120001
CTBC20P
B98120002
35 mm
CTBC35
B98120003
CTBC35P
B98120004
60 mm
CTBC60
B98120005
CTBC60P
B98120006
120 mm
CTBC120
B98120007
CTBC120P
B98120020
210 mm
CTBC210
B98120008
CTBC210P
B98120021
System components
max. connected
current transformers
Type
Art. No.
14
STEP-PS/1 AC/24 DC/1.75 B94053111
34
STEP-PS/1 AC/24 DC/4.2 B94053112
Accessories
Type
Art. No.
USB to RS-485 interface converter
B95012045
Terminal set for RCMB module (spare part)
B74043124
