Sima Products STP-3000 - Manual (Page 6)

5. Cable Hook-up
CAUTION! Loose connectors result in excessive voltage drop and may cause overheated wires and melted insulation.
CAUTION! Reverse polarity connection (positive to negative) will blow the fuses in the Sima STP-3000 and may permanently
damage the inverter. Damage caused by reverse polarity connection is not covered by your warranty.
WARNING! Spark may be observed when connection is first made as current starts to charge up capacitors in the Sima STP-3000.
Do not make this connection in the presence of flammable fumes. Explosion or fire may result.
Cables connecting the inverter to the DC power source must be as short as possible and sufficiently large for the required current flow so as to
minimize the voltage drop and to maintain high efficiency of the overall system.
Sima’s STP-3000 comes with a basic wiring kit to permanently install your inverter to a single battery. Multiple battery installation like the examples
that follow in our manual require additional cables and connectors that are not supplied and have to be purchased before installation.
The supplied cables come with pre-installed ring terminals for connection from the STP-3000 to your battery. The cable kit includes the following
items.
1. 1pc RED (+ POS) wire (80mm^2) 1.0 meter in length
2. 1pc RED (+ POS) wire (80mm^2) 0.5 meter in length
3. 1pc BLACK (- NEG) wire (80mm^2) 1.5 meters in length
4. 1pc GREEN (- ground) wire.
5. Fuse block assembly
6. 2 pieces 250 Amp fuses
NOTE: Installation requires an open workspace free from obstructions or obstacles. Wear
proper eye protection. If you are not qualified to install high power devices or if you are
unsure of the proper safety precautions needed to install a high power device like the
STP-3000 then STOP RIGHT HERE! CONTACT A LOCAL INSTALLATION EXPERT TO
INSTALL YOUR INVERTER.
Mounting the inverter and fuse block assembly:
1. Make sure the inverter is turned off. Select an inverter location that is free from water and combustible fumes. You will need to purchase the
necessary hardware bolts/nuts, screws…etc for your particular installation.
2. Select fuse block location. Location must be less than 0.5 meters from battery and less than 1.0 meters from the inverter. Assemble fuse
block assembly with supplied bolts/nuts. Make sure you install and secure the fuse. Mount fuse block with supplied sheet metal screws to
your chosen location.
Connecting the wires – refer to Fig. 4 at right:
3. Connect one end of the supplied GREEN wire to the Earth Ground
connection on the DC side of the inverter.
4. Connect the other end of the GREEN wire to a secure location on
vehicle chassis.
5. Connect one end of the BLACK wire to the – NEG connection on
your battery. Most MARINE type batteries have a STUD type mount
in addition to a CLAMP type mount that can be used with the ring
terminal. If your battery only has the CLAMP type connections you
will need to purchase an adapter from your local auto parts or
battery supply store to use the supplied cables. Secure with
supplied lock washer and nut that came with your battery or adapter.
6. Connect the other end of the BLACK wire to the – NEG connection
on the inverter. Secure with supplied lock washer and nut.
7. Connect one end of the shorter 0.5 meter RED wire to the end of
the supplied fuse block that is closest to your battery. Secure with
supplied lock washer and nut
Fig. 4
8. Connect the other end of the shorter 0.5 meter RED wire to the +
POS connection on your battery. Most MARINE type batteries have
a STUD type mount in addition to a CLAMP type mount that can be used with the ring terminal. If your battery only has the CLAMP type
connections you will need to purchase an adapter from your local auto parts or battery supply store to use the supplied cables Secure with
supplied lock washer and nut that came with your battery or adapter.
NOTE: Steps 9 & 10 are your final connections to supply power to your inverter. Making this connection will
create a spark. Make sure the last connection is to the supplied fuse block. Make sure the inverter is turned off
before you continue. Make sure you are wearing adequate eye protection.
9. Connect one end of the longer 1.0 meter RED wire to the + POS connection on the inverter. Secure with supplied lock washer and nut.
10. This connection will create a spark: Connect the other end of the longer 1.0 meter RED wire to the end of the supplied fuse block that is
closest to the inverter. Secure with supplied lock washer and nut.
Safe operation of the Sima STP-3000 requires a solid, low resistance connection to the DC power
source.
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