INSTALLATION
DC Wiring
● The inverter is designed to operate on a battery supply only.
● For best performance, the unit should be placed as close as possible, but not directly on top
of the battery supply.
● The inverter d.c. input voltage is stated on the identication label of the inverter. Check that it
is the same voltage as the battery supply.
● Ensure the inverter is switched OFF before connecting the d.c. supply. Turn the circuit
breaker switch to the OFF position.
● Connect the inverter DIRECTLY to the battery terminals for best performance.
● Input leads marked RED = (positive), & BLACK = (negative).
● The inverter is tted with a circuit breaker in line with the battery positive lead, which can
negate the need for a battery fuse. (Check regulations)
● Maximum input current is limited by inbuilt circuit breaker. Please check nameplate for
rating of circuit breaker.
● Interruption capacity of inbuilt circuit breaker is 4.5kA.
● Ensure you check the short circuit current of the battery bank. If the short circuit current is
more than 4.5kA you must install an appropriately rated external circuit protection device.
OBSERVE POLARITY
Cables connecting the inverter to the battery are designed to achieve
maximum eciency and output power:
DC CABLES SHOULD NOT BE EXTENDED
Battery Sizing
● To ensure peak performance, it is important to choose the right battery for your inverter.
The battery size required will depend on the load and intended running time. Use this
formula as a general guide:
● Recommended battery size= Inverter rating in watts ÷ input voltage × 10
e.g. ( 2000W ÷ 12V ) x 10 = 1666Ah
● Minimum battery size = Inverter rating in watts ÷ input voltage × 3
e.g. ( 2000W ÷ 12V ) x 3 = 500Ah.
● Do not use an undersized battery as this may result in an inverter that does not start or that
will rapidly discharge the battery and may cause damage to the battery.
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