7
Chart 2
5. AC Input Connection
5-1. Preparation
Before connecting to AC input power source, please install a
separate
AC
circuit breaker
between inverter and AC power source. 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 a fuse (F6 point on PCB, 250VAC/30A), it’s
still necessary to install a separate circuit breaker for safety consideration. Please use
250VAC/30A circuit breaker.
WARNING!
It's very important for system safety and efficient operation to use appropriate
cable for AC connection. To reduce risk of injury, please use the proper recommended cable
size as below.
Suggested cable requirement for AC wire
Conductor cross-section (mm
2
)
AWG no.
≥3.35
10 - 12
5-2. Connecting to the AC Power Source
Step 1: Check the AC voltage and frequency with an AC voltmeter. It should be the same to
“VAC” value on the product label.
Step 2: Turn off the circuit breaker.
Step 3: Remove insulation sleeve 8 mm for three
conductors. And shorten phase L and neutral conductor
N 3 mm. Refer to chart 1.
Step 4: Connect wires according to polarities indicated on terminal block. Be sure to connect
PE protective conductor (
)
first.
L
→
LINE (brown or black)
→
Ground (yellow-green)
N
→
Neutral (blue)
Step 5: Make sure the wires are securely
connected.
CAUTION:
To prevent risk of electric shock, ensure the ground wire is properly earthed
before operating this inverter
no matter the AC input is connected or not
.
Chart 1
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