Mastervolt MASTERSWITCH 0 User manual

INSTALLATION AND USERS MANUAL
MASTERSWITCH 0
Automatic AC transfer switch

CONTENTS
2
CONTENTS: v 4.0. November 2006
1GENERAL INFORMATION.............................................................................................................................................. 3
1.1 Use of this manual..............................................................................................................................................3
1.2 Guarantee Specifications ...................................................................................................................................3
1.3 Quality................................................................................................................................................................3
1.4 Validity of this manual ........................................................................................................................................3
1.5 Liability ...............................................................................................................................................................3
1.6 Identification label...............................................................................................................................................3
2SAFETY GUIDELINES AND MEASURES ...................................................................................................................... 4
2.1 Warnings and symbols.......................................................................................................................................4
2.2 Use for intended purpose...................................................................................................................................4
2.3 Organizational measures ...................................................................................................................................4
2.4 Warning of special dangers................................................................................................................................4
3HOW IT WORKS.............................................................................................................................................................. 5
3.1 Source priority....................................................................................................................................................5
3.2 INPUT 1: generator or shore input .....................................................................................................................5
3.3 INPUT 2: inverter input.......................................................................................................................................5
4INSTALLATION............................................................................................................................................................... 6
4.1 General ..............................................................................................................................................................6
4.2 Cable diameter...................................................................................................................................................6
4.3 Ground connections...........................................................................................................................................6
4.4 Inputs .................................................................................................................................................................8
4.5 Outputs...............................................................................................................................................................8
4.6 Settings ..............................................................................................................................................................8
4.7 Commissioning after installation.........................................................................................................................8
4.8 Decommissioning...............................................................................................................................................8
4.9 Transportation....................................................................................................................................................8
4.10 Re-installation.....................................................................................................................................................8
5SPECIFICATIONS ........................................................................................................................................................... 9
6OUTLINE DRAWINGS................................................................................................................................................... 10
7EC DECLARATION OF CONFIRMITY.......................................................................................................................... 11

GENERAL INFORMATION
3
1 GENERAL INFORMATION
The MASTERVOLT Masterswitch 0 is the heart of the AC
installation. The Masterswitch 0 is designed to take over
manual switching between two different power sources.
The Masterswitch 0 automatically transfers the available
AC power source to the output. Automatic switching
between the power sources doesn’t only offer you more
comfort; it also improves the safety on board. The
switching between the power sources which is done by
means of a relay, assures that no short-circuiting will
occur. The Masterswitch 0 has two inputs and one output.
1.1 USE OF THIS MANUAL
This manual serves as a guideline for the safe and
effective operation, installation, maintenance and possible
correction of minor malfunctions of the Masterswitch 0.
It is therefore obligatory that every person who works with
the Masterswitch 0 must be completely familiar with the
contents of this manual, and that he / she carefully follows
the instructions contained herein.
Installation of, and work on the Masterswitch 0, may be
carried out only by qualified, authorised and trained
personnel, consistent with the locally applicable standards
and taking into consideration the safety guidelines and
measures (chapter 2 of this manual).
The manual must be immediately accessible to the user.
This manual has 7 chapters.
Keep this manual at a secure place!
1.2 GUARANTEE SPECIFICATIONS
Mastervolt guarantees that this unit has been built
according to the legally applicable standards and
specifications. Should work take place, which is not in
accordance with the guidelines, instructions and
specifications contained in this users manual, then
damage may occur and/or the unit may not fulfil its
specifications. All of these matters may mean that the
guarantee becomes invalid.
The guarantee is limited to the costs of repair and/or
replacement of the product. Costs for installation labor or
shipping of the defective parts are not covered by this
guarantee.
1.3 QUALITY
During their production and prior to their delivery, all of our
units are exhaustively tested and inspected. The standard
guarantee period is two years after date of purchase.
1.4 VALIDITY OF THIS MANUAL
All of the specifications, provisions and instructions
contained in this manual apply solely to standard versions
of the Masterswitch 0 delivered by Mastervolt.
This manual is valid for the following models:
Part number Description
55006010 Masterswitch 0 - 5kW 230V/20A
55006015 Masterswitch 0 - 10kW 230V/40A
55106000 Masterswitch 0 – 3.5kW 117V/32A
55106100 Masterswitch 0 – 7kW 117V/60A
55106200 Masterswitch 0–9kW 117V/80A
1.5 LIABILITY
MASTERVOLT can accept no liability for:
•Consequential damage due to use of the
Masterswitch 0.
•Possible errors in the manuals and the results thereof.
1.6 IDENTIFICATION LABEL
CAREFUL!
Never remove the identification label.
Important technical information required for service,
maintenance and delivery of parts can be found on the
identification label

SAFETY GUIDELINES AND MEASURES
4
2 SAFETY GUIDELINES AND MEASURES
2.1 WARNINGS AND SYMBOLS
Safety instructions and warnings are marked in this
manual by the following pictograms:
A procedure, circumstance, etc which
deserves extra attention.
CAUTION!
Special data, restrictions and rules with regard
to preventing damage.
WARNING
A WARNING refers to possible injury to the
user or significant material damage to the
charger if the user does not (carefully) follow
the procedures.
2.2 USE FOR INTENDED PURPOSE
1 The Masterswitch 0 is constructed as per the
applicable safety-technical guidelines.
2 Use the Masterswitch 0 only:
•in a technical correct condition;
•observing the instructions in the users manual.
WARNING
Never use the Masterswitch 0 in situations
where there is danger of gas or dust explosion
or potentially flammable products!
3 Use of the Masterswitch 0 other than mentioned in
point 2 is not considered to be consistent with the
intended purpose. Mastervolt is not liable for any
damage resulting from the above.
2.3 ORGANIZATIONAL MEASURES
The user must always:
•have access to the user's manual;
•be familiar with the contents of this manual. This
applies in particular to chapter 2, Safety
Guidelines and Measures.
2.4 WARNING OF SPECIAL DANGERS
•Check the wiring at least once a year. Defects such as
loose connections, burned cables etc. must be
corrected immediately.
•Connection and protection must be done in
accordance with local standards.
•Do not work on the Masterswitch 0 or system if it is still
connected to a power source. Only allow changes in
your electrical system to be carried out by qualified
electricians.

HOW IT WORKS
5
3 HOW IT WORKS
3.1 SOURCE PRIORITY
The Masterswitch 0 switches the right AC power source to
the output. Therefore the Masterswitch 0 is equipped with
a source priority. If more than one AC power source is
available, the source with the highest priority is switched to
the output.
3.2 INPUT 1: GENERATOR OR SHORE INPUT
See figure 1. INPUT 1 has the highest priority, which
means that the output is connected to INPUT 1 when grid
is available on INPUT 1. At the same time, INPUT 2 is
denied. The generator or the shore power should be
connected to INPUT 1.
When power is available on INPUT 1, the output is
transferred to INPUT 1 after a delay of approximately 10
seconds. The 10 seconds delay time provides an ‘easy
start up’ for the generator. In normal situations the
generator is stabilized after app. 3 sec. To make sure no
voltage and frequency variations will occur the delay time
is set to 10 sec. This increases the generator’s lifetime
If INPUT 1 is used to connect the shore, the delay time
can be adjusted to 0 seconds. See chapter 4.6
3.3 INPUT 2: INVERTER INPUT
INPUT 2 has the second priority. If there is no power
available on INPUT 1, the output is transferred to INPUT
2. INPUT 2 is used to connect the inverter.
In this case, the Masterswitch 0 is in a neutral state and
consumes no energy it self.
CAUTION!
During transfer between one of the power-
sources, users are not supplied with power for
a short time. Because of this, computers etc.
connected to this group might loose data.
Figure 1: Electrical diagram

INSTALLATION
6
4 INSTALLATION
WARNING
Be sure that all AC power sources are
switched off or disconnected during
installation.
WARNING
External fuses and earth leakage switches
must be integrated in the wiring of all inputs
and outputs of the Masterswitch 0.
4.1 GENERAL
During installation and commissioning of the Masterswitch
0the Safety Guidelines and Measurements are applicable
at all times. See chapter 2 of this manual.
After unpacking, check the Masterswitch 0 for possible
damage. Do not use the Masterswitch 0 if the cabinet is
damaged.
Check from the type number plate whether the AC voltage
of the power sources is equal to the input voltage of the
Masterswitch 0.
Use the provide cable-glands to pass the cables through
the cabinet.
4.2 CABLE DIAMETER
For a safe installation the correct wire cross section must
be applied. Don’t use a cross section that is smaller than
indicated. See table below to select the appropriate cross
section for the AC wiring:
AC-Current Minimum cross section:
in mm² AWG
0-16 Amp 2.5 mm² AWG 13
16-32 Amp 4 mm² AWG 11
32-48 Amp 6 mm² AWG 9
48-80 Amp 10 mm² AWG 7
WARNING
Use cable with the right cable diameter!
Under-sized cables and/or loose connections can cause
dangerous overheating of the cables and/or terminals.
Therefore use the proper size and tighten all connections
well, in order to limit transition resistance as far as
possible. See chapter 5 for recommended torques.
4.3 GROUND CONNECTIONS
For safety reasons it is very important that all ground
connections of the power sources and power consumers
are connected to the central ground connection of the
ship. Improper ground connections might lead to life
treating situations. A reliable ground connection is made
by connecting the sources and the consumers to the
ground terminal of the Masterswitch 0. This ground
terminal must be connected to the central ground
connection of the ship, which is connected to the hull of
the ship.
When the ship lies in sea water (salt) while using shore
power, corrosion can occur. This corrosion is caused by
potential differences between shore ground and ships
ground. Using an isolation transformer will solve this
problem. Mastervolt can provide a suitable transformer

INSTALLATION
7
1
INPUT 2
INPUT 1
PE L N PE L N
OUTPUT
PE L N
1R1 R3
3
2R2 R4
4
Figure 2: Installation of the Masterswitch 0
Masterswitch 0 – 7kW 117V/60A
Masterswitch 0–9kW 117V/80A Masterswitch 0 - 5kW 230V/20A Masterswitch 0 - 10kW 230V/40A
Masterswitch 0 – 3.5kW 117V/32A
Delay time INPUT1
INPUT 2
INPUT 1
OUTPUT
PE L N PE L N
PE L N
1
R1 R31 3
R2 R42 4
Delay time
INPUT1

INSTALLATION
8
4.4 INPUTS
See figure 2 and figure 3 to connect the AC power
sources.
Wire INPUT 1 INPUT 2
L (phase) 1 R1
N (neutral) 3 R3
PE (ground)
Figure 3:
Connections to the AC sources
4.5 OUTPUTS
Connect the load to the terminals as indicated in figure 2
and figure 4.
Wire OUTPUT
L (phase) 2 + R2
N (neutral) R4 + 4
PE (ground)
Figure 4:
Connections to the AC output
4.6 SETTINGS
Under normal circumstances adjustment of the
Masterswitch 0 is not recommended: after installation the
Masterswitch 0 is immediately ready for use. However
specific circumstances may require adjustment of the
switch-on delay time of INPUT 1.
See figure 2. Use a small flat blade screw driver to adjust
the delay time
4.7 COMMISSIONING AFTER INSTALLATION
Follow the steps described below to switch on the
Masterswitch 0.
1. Tighten all cable glands to ensure the pull relief
2. Check all wiring and connections.
3. Close the cabinet.
4. Switch on the AC power sources.
4.8 DECOMMISSIONING
If it is necessary to put the Masterswitch 0 out of
operation, follow the instructions in order of succession as
described below:
1. Switch off all loads
2. Switch off the AC power sources. These power
sources should be secured against unexpected and
unintended switching on.
3. Open the casing of the Masterswitch 0
4. Check with a suitable voltage meter whether the
inputs of the Masterswitch 0 are voltage free.
5. Disconnect all the wiring
Now the Masterswitch 0 can be demounted in a safe way.
4.9 TRANSPORTATION
Always use the original packing for transportation. Contact
your local Mastervolt Service Centre for further details if
you want to return the apparatus for repair.
4.10 RE-INSTALLATION
To reinstall the Masterswitch 0, follow the instructions as
described in chapter 4

SPECIFICATIONS
9
5 SPECIFICATIONS
GENERAL
Function of the product: Automatic transfer switch between two single phase AC power sources and one output.
Additional external circuit breakers must be applied (installation dependent).
Manufacturer: Mastervolt, Amsterdam, the Netherlands
Specified operation temperature -5…+60 °C (will meet specified tolerances)
Allowed operating temperature: -40…+70 °C (may not meet all specified tolerances)
None operating temperature: -60…+80 °C (storage temperature)
Relative humidity: 95% max., non-condensing
Earth leakage breaker (RCCB): N/A, must be applied externally (installation dependent)
Automatic circuit breakers: N/A, must be applied externally (installation dependent)
230V VERSIONS Masterswitch 0 - 5kW 230V/20A Masterswitch 0 - 10kW 230V/40A
Part number: 55006010 55006015
Nominal voltage: Single phase 200 – 250 VAC / 50-60Hz
Nominal current INPUT 1: 20A 40A
Nominal current INPUT 2: 20A 40A
Nominal current OUTPUT: 20A 40A
Switching current (I eff, IEC947): 250A 450A
Power consumption:
(AC available on INPUT 1) 7 VA ± 10% 7 VA ± 10%
Power consumption:
(only AC available on INPUT 2) 0 VA 0 VA
Transfer time by making 12-22 msec 12-22 msec.
Transfer time by braking 4-19 msec 4-19 msec.
Delay time INPUT1: Approximately 10 sec. (adjustable, see chapter 4.6)
Dimensions, H x W x D:
(see also chapter 6) 200 x 123 x 111.5 mm 7.9 x 4.8 x 4.4 inch. 200 x 123 x 111.5 mm 7.9 x 4.8 x 4.4 inch.
Approximate weight: 1.2 kg / 2.6 Lbs ± 5% 1.3 kg / 2.9 Lbs ± 5%
Protection degree: IP55 (IEC-529) IP55 (IEC-529)
Recomm. torque connections: 1.7 Nm / 15 In-Lbs 2.5 Nm / 22 In-Lbs
117V VERSIONS Masterswitch 0 – 3.5kW
117V/32A Masterswitch 0 – 7kW 117V/60A Masterswitch 0–9kW 117V/80A
Part number: 55106000 55106100 55106200
Nominal voltage: Single phase 100 – 125 VAC / 50-60Hz
Nominal current INPUT 1: 32A 60A 80A
Nominal current INPUT 2: 32A 60A 80A
Nominal current OUTPUT: 32A 60A 80A
Switching current (I eff, IEC947): 300 A 1000 A 1000 A
Power consumption:
(AC available on INPUT 1) 7 VA ± 10% 26 VA ± 10% 26 VA ± 10%
Power consumption:
(only AC available on INPUT 2) 0 VA 0 VA 0 VA
Transfer time by making 12-22 msec 20-26 msec 20-35 msec
Transfer time by breaking 4-19 msec 8-12 msec 6-20 msec
Delay time INPUT1: Approximately 10 sec. (adjustable, see chapter 4.6)
Dimensions, H x W x D:
(see also chapter 6) 200 x 123 x 111.5 mm 7.9 x 4.8 x 4.4 inch. 214 x 162 x 128 mm 8.4 x 6.4 x 5.0 inch. 214 x 162 x 128 mm 8.4 x 6.4 x 5.0 inch.
Approximate weight: 1.2 kg / 2.6 Lbs ± 5% 2.6 kg / 5.7 Lbs ± 5% 2.7 kg / 6.0 Lbs ± 5%
Protection degree: IP55 (IEC-529) IP66 (IEC-529) IP66 (IEC-529)
Recomm. torque connections: 1.7 Nm / 15 In-Lbs 6 Nm / 53 In-Lbs 6 Nm / 53 In-Lbs
All specifications are subject to change without prior notice.

OUTLINE DRAWINGS
10
6 OUTLINE DRAWINGS
All dimensions are in millimeters.
Figure 5: dimensions of the Masterswitch 0
Masterswitch 0 - 5kW 230V/20A
Masterswitch 0 - 10kW 230V/40A
Masterswitch 0 – 3.5kW 117V/32A
Masterswitch 0 – 7kW 117V/60A
Masterswitch 0–9kW 117V/80A

EC DECLARATION OF CONFIRMITY
7 EC DECLARATION OF CONFIRMITY
Herewith declares that:
Product:
55006010 Masterswitch 0 – 5kW 230V/20A
55006015 Masterswitch 0 – 10kW 230V/40A
55106000 Masterswitch 0 – 3.5kW 117V/32A
55106100 Masterswitch 0 – 7kW 117V/60A
55106200 Masterswitch 0 – 9kW 117V/80A
Is in conformity with the provision of the EC, EMC directive 89/336/EEC and amendments 92/31/EEC, 93/68/EEC
The following harmonized standards have been applied:
Generic emission standard EN 50081-1:1992,
Generic immunity standard EN 50082-1:1997,
And the safety directive 73/23/EEC and amendment 93/68/EEC, with the following standard:
Low voltage standard EN 60950:2000,
Amsterdam,
R.J. ter Heide,
General Manager MASTERVOLT
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