Fully programmable
The batteryguard can be set to engage/disengage
at several different voltages. The BG is microprocessor
controlled and is having 10 different
program’s (12 and 24Vdc) to be chosen off.
Overvoltage protection
To prevent damage to your sensitive loads due too
over voltage, the load is disconnected whenever the
DC-voltage exceeds 16V or 32V.
Ignition proof
No relay but MOSFET switches, and therefore no
sparks.
Alarm output
The alarm output is activated if the battery drops
below the present disconnect level during more
than 12 seconds. Starting the engine, genset or
battery charger will therefore not activate the alarm.
The alarm output is an open collector output to the
negative (minus) rail, max. current 500mA.
The alarm is typically used to activate a buzzer
and/or lamp.
Load disconnect
Only 1 minute after the alarm has been activated
the load will be disconnected, but if the batteryvoltage
increases to the connect threshold within this
minute (after the engine, genset or batterycharger
has been started for example) the load will not
be disconnected.

Batteryguard                                   BG 10   BG18   BG40
Maximum continous                        10A     18A    40A
load curren
Operating voltage    Autodetect  12 or 24Vdc, 8-19Vdc (12Vdc) 200-35Vdc (24Vdc)
range
Current consumption                            appr. 4mA
Current consumption                            appr. 2mA
in off position
Voltage drop                           0,1@10A  0,1@18A  0,0875@35A
Voltage tolerance                                      -2%
Current output                                         +/-20%
tolerance
Casework                   Seal for BG 10&18, Anodised aluminium for BG 40
Dimensions                             60x20x5  60x20x5  80x60x40
(LxWxH) mm