Statpower Portawattz 3000, Owner'S Manual, Page: 23 / 36

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CAUTION!
Loose connectors result in excessive voltage drop and may
cause overheated wires and melted insulation.
CAUTION!
We recommend a Main Fuse in the battery positive cable to protect against
DC wiring short circuits (external to the inverter). The fuse should be as
close to the battery as possible. We recommend an approved class R or
class J fuse, such as Bussman JJN or FRN, Littelfuse JLLN or FLN or
equivalent. The specific fuse ampere rating should be sized to allow operation
of all your DC powered equipment and to properly protect your battery cables.
WARNING!
You may observe a spark when you make the following connection since
current may flow to charge capacitors in the Portawattz 3000. Do not make
this connection in the presence of flammable fumes. Explosion or fire may
result.
WARNING!
Do not operate the Portawattz 3000 without connecting it to ground. Electrical
shock may result.
ground in the same way that the neutral conductor from the
utility line is tied to ground at the AC breaker panel.
5.4.3 DC Wiring
STEP 1 - Ensure the ON/OFF switch on the Portawattz 3000
is in the OFF position. If you are using a battery
selector switch, switch it off as well.
STEP 2 - Connect the cables to the power input terminals
on the rear panel of the Portawattz 3000. The red
terminal is positive (+) and the black terminal is
negative (-). Tighten the wire connections
securely.
STEP 3 - Connect the cable from the negative (black)
terminal of the Portawattz 3000 to the negative
terminal of the battery. Make a secure connection.
STEP 4 - Before proceeding further, carefully check that the
cable you have just attached connects the
negative terminal of the Portawattz 3000 to the
negative terminal of the battery. Power
connections to the Portawattz 3000 must be
positive to positive and negative to negative.