Bender RCMB300 Series - Page 54

Technical data
54
RCMB300-series_D00372_01_M_XXEN/06.2019
Measuring circuit
Internal diameter measuring current transformer ..............................see dimension diagrams Page 18
Characteristics according to IEC 62020 and IEC/TR 60755 ................................. AC/DC sensitive, type B
Measuring range ...................................................................................................................5 mA…20 A
Response value I
Δn
........................................................... 30 mA…3 A (freely configurable), (30 mA)*
Prewarning ...................................................................50 %…100 % I
Δn
(freely configurable), (60 %)
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
Operating uncertainty .................................................................................................................±17.5 %
Relative uncertainty .................................................................................................................0…–35 %
Test winding.......................................................................................................................................... yes
Possible response values (to be set on the evaluator)
CTBC20, CTBC20P.................................................................................................................10…500 mA
CTBC35, CTBC35P, CTUBC60, CTBC60P ..............................................................................30 mA…10 A
CTBC120P, CTBC210P........................................................................................................100 mA…10 A
CTBC120, CTBC210............................................................................................................300 mA…10 A
Time response
Response delay t
on
............................................................ 50 ms…60 min (freely configurable), (0 s)*
Start-up delay t
an
....................................................................0 s…60 min (freely configurable), (0 s)*
Delay on release t
off
................................................................0 s…60 min (freely configurable), (1 s)*