BÜTTNER ELEKTRONIK – Batterie-Control-Booster MT BCB 30/30, MT BCB 40/40, MT BCB 60/40
EN
17
MT BCB 40/40
Cable
cross-
section
Cable
length
+ START
at isolated
construc-
tions:
Cable
length
-Batt.
Si. II
Cable
protection
Cable length
– Com.
to board
battery
Cable
length
+ BORD
Si. I
Cable
protection
6 mm
2
–
–
–
0,5 – 1.5 m 0.5 – 1.5 m
60 A
10 mm
2
to 5 m
to 5 m
80 A
1.0 – 2.5 m 1.0 – 2.5 m
60 A
16 mm
2
to 9 m
to 9 m
80 A
2.0 – 4.0 m 2.0 – 4.0 m
60 A
MT BCB 60/40
Cable
cross-
section
Cable
length
+ START
at isolated
construc-
tions:
Cable
length
-Batt.
Si. II
Cable
protection
Cable length
– Com.
to board
battery
Cable
length
+ BORD
Si. I
Cable
protection
6 mm
2
–
–
–
–
–
–
10 mm
2
–
–
–
0.5 – 2.0 m 0.5 – 2.0 m
80 A
16 mm
2
to 7 m
to 7 m
100 A
1.5 – 3.0 m 1.5 – 3.0 m
80 A
The plug-in connector is used to connect
control and measurement inputs, switching
outputs and the CI bus adaptation and can
be removed for pre-wiring (see also 3.2.
Device overview and 5. Technical data).
Protection: All inputs and outputs on this
connector are protected against overvolta-
ge, reverse polarity and overload. The ma-
ximum load of all outputs is up to 1 A and
protected by a self-resetting thermal fuse.
Terminal spec.: 0.75 mm
2
– max. 1.5 mm
2
Stripping length: approx. 6 mm.
T T: Measurement input for the tempera-
ture of the BORD supply battery
Connect the strands of the battery tempe-
rature sensor to any of the terminals “TT”.
Preferably connect the temperature sensor
to the negative battery terminal.
Note
i
BÜTTNER ELEKTRONIK LiFePO
4
batteries offer internal temperature
sensors which can be used for a more precise
measurement! A twin wire (2 x 0.75 mm
2
)
between the BCB and the temp.sensor
connector of the battery is sufficient for
this (see also BÜTTNER ELEKTRONIK
LiFePO
4
battery instructions).
S – / S +: Inputs for measuring / sense
wiring for measuring the battery voltage.
With the sense wires, the device can mea-
sure and regulate the precise charging vol-
tage on the battery, regardless of the volta-
ge losses on the charging cables!
3.7. Connections on 9-pin plug-in connector
