FSP HySpirit series User Manual
8
http://www.fsp-group.com.tw/en/product/PVInverter.html
6.
Grid (Utility) Connection
6-1. Preparation
Before connecting to AC utility, please install a separate AC circuit breaker between surge
protection device (SPD) and AC utility. This will ensure the inverter can be securely disconnected
during maintenance and fully protected from over current of AC input.
NOTE1: Although this inverter is equipped with 250Vac/40A fuse, it’s still necessary to install a
separate circuit breaker for safety consideration. Please use 250Vac/40A circuit breaker between
surge protection device (SPD) and AC utility.
NOTE2: The overvoltage category of the AC input is III. It should be connected to the power
distribution.
WARNING! For safety and efficiency, it's very important to use appropriate cables for grid (utility)
connection. To reduce risk of injury, please use the proper cable size recommended below.
Suggested cable requirement for AC wire
Model
5.5KW
Nominal Grid Voltage
230Vac
Conductor cross-section (mm
2
)
6
AWG no.
10
6-2. Connecting to the AC Utility
Step 1: Check the grid voltage and frequency with an AC voltmeter to see if it’s same as the
“Vac” value on the product label.
Step 2: Turn off the circuit breaker.
Step 3: Remove insulation sleeve 10 mm from three
conductors and shorten phase L and neutral
conductor N for 3 mm. Refer to chart 1.
Step 4: Connect wires according to the polarities indicating on terminal block. Be sure to connect
PE protective conductor (G) first.
L→LINE (brown or black)
N→Neutral (blue or white)
G→Ground (yellow-green)
Step 5: Make sure the wires are securely connected.
The reference tightening torque is 1.4~1.6N.m.
7.
PV Module (DC) Connection
CAUTION: Before connecting to PV modules, please install separately DC circuit breakers
L
N
Chart 1
Chart 2
