Manual Mastervolt Mass Sine Ultra 24 4000 (page 12 of 27) (English, German, Dutch, French, Italian, Spanish)

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EN / Mass Sine Ultra

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.

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Mastervolt Mass Sine Ultra 24 4000 Manual

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