Protective Features - Vector MAXX SST VEC049D User's Manual & Warranty Information

operating time at full load. To extend operating time in general, reduce the heavy
appliance load to a minimum. Remember, you are operating on stored energy and
probably under power loss conditions.
Note:
All operating time curves assume permanent installation with the appropriate
DC input wire (See the "Specifications" section on page 16) and a full charge
on the batteries.
Battery Operating Times
Power
Watts
100 10
200 20
300 30
400 40
500 50
600 60
700 70
800 80
900 90
1000 100
Minutes 15 30 45 80 75 90 105 120 135 150 165 180 195 210 235 240
For example, as shown in the above graph, using a 400 A/h battery (batteries), if the
average power usage will be 1000 watts, the operating time will be about 150
minutes. A larger capacity battery will deliver more operating time between recharges.
Note:
The manufacturer recommends conservative estimates when selecting a battery.
More amp hours will deliver a reserve capacity, and a larger capacity battery
will not be subject to deep discharges. Ideally, the number of amp hours (A/h)
you expect to use should be less than 50% of the battery's rated capacity.

Protective Features

LOW BATTERY ALARM
An audible alarm will sound when the 12 volt DC power supply voltage drops down
to 10.5 ± 0.3 volts. This indicates that the battery needs to be charged or there is an
excessive voltage drop between the battery power source and the inverter.
Notes:
It is normal for the alarm to sound when the inverter is being connected to,
or disconnected from, a 12 volt DC power source. This does not indicate a
problem. However, if this alarm sounds continuously, discontinue inverter
operation and charge the battery before resuming operation. If the voltage
drops to 10.0 volts DC, the inverter will automatically shut down.
If the low voltage alarm sounds when the battery is fully charged (refer to
the "Fault Protection and Troubleshooting Guide" on pages 15).
CIRCUIT PROTECTION
The inverter has electronic circuit protection against overload or short circuit
conditions.
Level
OPERATING TIME CHART FOR LOAD AND BATTERY CAPACITY AVAILABLE
Amps
9
50 A/h
120 A/h
200 A/h
400 A/h