BÜTTNER ELEKTRONIK – Batt erie-Control-Booster MT BCB 30/30, MT BCB 40/40, MT BCB 60/40
8
Remark:
De-nude cable ends only:
- Signal cable 0.75 – 1.5 mm
2
: 9 mm
- Charging cables – 12 mm
Don’t use bootlace ferrules!
negativ/ground
chassis
Option:
To be used for
mains detection signal,
for example CBE electrics
(conn. J10), if charger will
be de-activated
Comply with recommended cable
diametres, lengths and fuse
dimensioning according table 1!
General all negative wirings
on negative-terminal of
BORD-Battery!
NOTE:
The fuses protect the
cabling (cable fire), therefore
place them as close as
possible to the batteries.
NOTE:
If the BCB is not activated via D + of the alternator but via
terminal 15 (ignition/on), there is a possibility that the
starter battery will discharge if the ignition is accidentally
switched on (without the engine running). If there is no D +
available, it is also possible to use the D + active simulator.
See also information in the manual.
to D+
Si.
5A
Si.
I
Si.
II
Temperature Sensor
-Batt.
separate wiring acc.
table 1, if needed
negativ/ground
chassis
negativ/ground
chassis
negativ/ground
chassis
to consumers
red
red
black
Remarks:
• The BCB takes care of charging the on-board battery while driving and is galvanically isolating
the starter battery when the vehicle is stationary. (no battery separator relay required!)
• The maximum charging current while driving can be 30 A, 40 A or 60 A depending on the BCB
model. For higher currents caused by consumers - see installation type 2.
• When connected to the mains, the board battery will be charged as well as the starter battery
be maintained in charge with 4 A, 5 A or 10 A, depending on the BCB model.
• Cable cross-sections and corresponding fuses need to be dimensioned adequately according to
table 1.
3.4. Types of Installati on
Installation type 1 – DIY (Do-it-yourself) builders
Perfect for vehicles that need to be equipped
with a board battery and charging unit.
