SP60/SP80 User Manual V1.3
TBB Power Co.,Ltd
22
4.4.4 Battery connection
Please always wiring the battery first before wiring to PV array
Please ensure the circuit breaker was switched OFF or fuse was open
Install the SP as close to the batteries as possible reducing the voltage drop on cable for the
better performance of the equipment.
Do not install SP in a sealed compartment containing batteries.
Choose the right cable size (refer to Tab4-2) and follow polarity guide marked on the panel
An over current protection devices DC fuse or circuit breaker needs to be installed on
positive cable, of which rated for 125% of the nominal rating.
-
SP60-150: 75A
-
SP80-150 : 100A
Wiring need to be protected against any potential physical damage
Pull through the DC cables through the holes at front panel, clamping the cable terminal on
cable.
Secure the battery cable on BAT+ and BAT- terminals respectively making sure it is tightly
screwed
Please double confirm the polarity of battery input. SP will not be able to switch
on with reverse polarity connection.
