Samil Power SP-SR-V5-EN Product Manual page 21

SR series inverters (SR3K3TLA1/SR4K4TLA1/SR4K4TLA1-PT/SR5KTLA1 ) can be connected in
series into 2-strings PV modules. Please select PV modules with excellent function and reliable
quality. Open-circuit voltage of module arrays connected in series should be ＜Max. DC (Table 3)
input voltage; operating voltage should be conformed to MPPT voltage range.
Model SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1
Max. DC voltage
Please use PV cable to connect modules to inverter. From junction box to inverter, voltage drop is
about 1-2%. So we suggest the inverter install near PV module, in order to save cable and reduce
DC loss.
Note !
Please don't connect the PV panel positive or negative to ground.
Figure 9
Table 3
Max. DC Voltage Limitation
Use multimeter to measure module array voltage
Warning !
PV module voltage is very high which belongs to dangerous voltage
range, please comply with electric safety rules when connecting.
Warning !
When there is something wrong with module arrays, modules can be
connected with PV grid-tied inverter only after eliminating these problems.
SR4K4TLA1-PT
550 V
Installation
SR5KTLA1
19