Manual

3 INSTALLATION

3.3 DC Wiring Connections

RISK OF ELECTRICAL SHOCK. BEFORE PROCEEDING, CAREFULLY CHECK THAT THE INVERTER

IS NOT CONNECTED TO ANY BATTERIES AND THAT ALL WIRING IS DISCONNECTED FROM

ANY ELECTRICAL SOURCES. DO NOT CONNECT THE OUTPUT TERMINALS OF THE INVERTER

TO AN INCOMING AC SOURCE.

DC supply cables should be kept as short as possible whilst still adhering to the above installation

requirements (ideally less than 1.8m / 6ft). Cables should be of an adequate size to handle the

required currents.

Cables which are not of adequate size (too thin) will result in Voltage drop and poor performance

of the inverter (such as poor surge capability, low-input voltage warnings and shutdowns). As the

supply cable increases in length or reduces in size (gets narrower) the voltage drop will increase.

Batteries are capable of providing very large currents in the case of a short circuit. A fuse must

be installed on the positive supply cable as close as practical to the battery. Failure to do so

provides inadequate protection against ﬁre in the case of a short circuit. Only use high quality

copper cable and keep the cable length short, refer to section 2.2.4 for more information.

Reverse polarity connection will blow the internal fuse and may cause permanent damage

to the inverter.

Before making the DC wiring connections, the main switch

(page 12) must be set to “OFF”.

Connect the DC input terminals to an appropriate battery supply or other DC power source.

Power source [ + ] is positive and [ - ] is negative.

Battery

Fuse or

Circuit Breaker

Figure 3.3.1 - DC Wiring Connections