SamplexPower SAM Series, Owner'S Manual

Page: 19 / 40

SAMLEX AMERICA INC. | 19
noteS:
1. cable Size
• As per NEC, size is based on Ampacity ≥ 1.25 times the rated DC Input Current
• Conductor / Insulation rating : 105 °C
2. fuse Size
• Type: Class-T or Marine Rated Battery Fuse (MRBF)
• The rating of the fuse should not exceed the Ampacity of the Cable
3. Distance between inverter and Battery and % voltage Drop
• Voltage drop is calculated based on length of cable = 2 x Distance to consider
total length of Positive and Negative cables
• % drop is calculated with respect to rated battery voltage of 12.5V
!
caution!
• Please ensure that the recommended external fuse specified in Table 4.1
above (fuse is not supplied) is installed in series with the positive cable and
is as close to the Battery (+) terminal as possible (preferably within 7”).
• Please ensure that all the connections are tight. Loose connections may
cause overheated wires and melted insulation.
4.6.8 connecting Batteries
Series connection
6V Battery 6V Battery
Battery 2 Battery 1
Cable “A”
Cable “B”
12V
Inverter/
Charger
Fig. 4.2 Series Connection
When two or more batteries are connected in series, their voltages add up but their
Ah capacity remains the same. fig. 4.2 above shows 2 pieces of 6V, 200 Ah batteries
connected in series to form a battery bank of 12V with a capacity of 200 Ah. The Positive
terminal of battery 2 becomes the Positive terminal of the 12V bank. The Negative
terminal of battery 2 is connected to the Positive terminal of battery 1. The Negative
terminal of battery 1 becomes the Negative terminal of the 12V battery bank.
SeCTIOn 4 | Installation