EN / Mass Sine Ultra
12
4.3.2
DC wiring
Keep in mind that high current will pass through the DC
wiring. Keep the cable length as short as possible, this will
keep the system efficiency as high as possible. The table
shows recommended DC wire size:
Model
Minimum cross section:
24/4000
70 mm²
2/0 AWG
Use M8 cable lugs terminals on the ends of the wires. These
lugs should be crimped with a proper crimping tool. Use the
following wire colours for DC wiring (refer to local rules):
Wire
colour
Meaning
Must be connected to:
Red
Positive
+ (POS)
Black
Negative
– (NEG)
Position the positive and negative cables next to each other
to limit the electromagnetic field around the cables. The
negative cable should be connected directly to the negative
post of the battery bank or the ground side of a current shunt.
Do not use the chassis frame or hull of the ship as the
negative conductor. Tighten the Mass Sine Ultra
connections securely (15 - 20 Nm / 130 - 175 In-Lbs.). The
positive battery cable must be fused and connected to the
positive post of the battery bank. Fuse rating depends on the
applied cable cross section. The fuse with fuse holder is
available from your local Mastervolt distributor or Customer
Service Representative.
4.3.3
AC safety grounding
WARNING
The ground wire offers protection only if the
cabinet of the Mass Sine Ultra is connected to the
safety ground.
The ground stud is positioned at the left foot of the cabinet,
see the overview on page 2, position 7. Connect the earth
terminal (PE / GND) to the hull or the chassis with a minimum
10 mm².
CAUTION!
For safe installation it is necessary to:
•
connect the neutral conductor (N) of the AC output
to the earth (PE / GND);
•
insert a Residual Current Device (earth leakage
switch) of 30 mA in the AC output of the Mass Sine
Ultra.
Refer to local regulations on these issues!
4.4
Things you need
Make sure you have all the parts you need to install the Mass
Sine Ultra:
•
Mass Sine Ultra (included);
•
AC wiring. Double insulated three wire cable with wire
colours according to the locally applicable standards.
The applicable length and wire diameter depend on the
electrical installation. See section 4.3.1;
•
DC-wiring to connect the DC connections of the Mass
Sine Ultra to the DC-distribution. See section 4.3.2;
•
DC-fuse holder with a DC-fuse, to be integrated in the
positive DC-cable. For specifications see section 4.3.2;
•
Screws / bolts (Ø 6 mm) (with plugs) to mount the cabinet
to a surface. Use mounting materials which are suitable
to carry the weight of the Mass Sine Ultra;
•
Batteries. Refer to chapter 8 for specifications;
•
Appropriate and reliable cable terminals, cable lugs,
battery terminals and cord end terminals.
We recommend as a minimum tool kit:
•
Socket wrench 13 mm to fix the DC-input (battery)
cables;
•
Flat blade screw driver 1.0 x 4.0 mm to fix the screw
terminals;
•
Tools to fix the screws / bolts (Ø 6 mm) (with plugs) to
mount the cabinets to a surface;
•
Philips screw driver to open the connection area of the
Mass Sine Ultra.
4.5
Removal of the front lid
Figure 4-5.1: Removal of the front lid
Steps:
1
Loosen the two screws that secure the front cover plate;
2
Lift the front cover plate from the cabinet. See figure
4-5.2.