Mastervolt MASS SYSTEMSWITCH 10 Operating manual

MASS SYSTEMSWITCH
Automatic AC transfer switch
USER AND INSTALLATION MANUAL
10000015201/03
To download this manual in other languages, please
visit our website: www.mastervolt.com

2
Mass Systemswitch 16 kW (230V) –User and Installation Manual
TABLE OF CONTENTS
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 DISCLAIMER................................................... 3
2SAFETY GUIDELINES AND MEASURES................. 4
2.1 Use for intended purpose ................................ 4
2.2 Organisational measures................................. 4
2.3 Warning of special dangers............................. 4
3HOW IT WORKS ........................................................ 5
3.1 Source priority ................................................. 5
3.2 AC inputs......................................................... 5
3.2.1 Only inverter power available ............... 5
3.2.2 Shore power available.......................... 5
3.2.3 Generator power available ................... 5
3.3 AC outputs....................................................... 5
3.3.1 Inverter only output (no break).............. 6
3.3.2 Short break output................................ 6
3.3.3 Power output ........................................ 6
3.3.4 Generator only output........................... 6
3.4 Monitoring and control..................................... 6
3.4.1 Remote control panel (optional)............ 6
3.4.2 MasterBus (optional) ............................ 7
3.5 Load on inverter mode..................................... 7
3.6 Automatic load on inverter mode..................... 7
3.6.1 Traditional remote control panel........... 7
3.6.2 MasterBus ............................................ 7
3.6.3 Example ............................................... 7
4INSTALLATION.......................................................... 9
4.1 General.............................................................9
4.2 Environment.....................................................9
4.3 Tools required for installation ...........................9
4.4 Mounting of the cabinet....................................9
4.5 Opening the connection compartment..............9
4.6 Wire cross section............................................9
4.7 Ground connections .......................................10
4.8 Wiring.............................................................10
4.9 Inputs..............................................................11
4.10 Outputs...........................................................11
4.11 Remote panel (optional).................................12
4.12 MasterBus (optional) ......................................12
4.13 Commissioning after installation.....................12
4.13.1 MasterBus (optional)...........................12
4.14 Decommissioning...........................................12
4.15 Storage and transportation.............................12
4.16 Re-installation.................................................12
5MASTERBUS............................................................13
5.1 What is MasterBus? .......................................13
5.2 Event based commands.................................13
5.3 How to set up a MasterBus network...............14
6SPECIFICATIONS.....................................................15
6.1 Technical data................................................15
6.2 Dimensions.....................................................16
6.3 MasterBus......................................................17
6.3.1 Menu level 2: Monitoring.....................17
6.3.2 Menu level 3: History...........................17
6.3.3 Menu level 3: Configuration.................18
6.3.4 List of event sources ...........................19
6.3.5 List of event commands ......................19
6.3.6 Personal settings and notes................19

Mass Systemswitch 16 kW (230V) –User and Installation Manual
3
1 GENERAL INFORMATION
The MASTERVOLT Mass Systemswitch is the heart of the
AC installation. It is designed to take over manual
switching between three different power sources. The
Mass Systemswitch automatically transfers the available
AC power source to the right outputs. 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 relays, assures that no short-circuiting will occur.
The status of the Mass Systemswitch can be monitored by
means of a Mastervolt remote control panel. The Mass
Systemswitch is also compatible to be used in the
MasterBus network: a decentralized data network, giving
you full control over the entire electrical installation.
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 Mass Systemswitch
16 kW.
It is therefore obligatory that every person who works with
the Mass Systemswitch must be completely familiar with
the contents of this manual, and that he / she carefully
follows the instructions contained herein. The manual must
be immediately accessible to the user.
1.2 GUARANTEE SPECIFICATIONS
Mastervolt guarantees that this unit has been built in
accordance with the legally applicable standards and
specifications. Should work take place, which is not in
accordance with the guidelines, instructions and
specifications contained in the user manual, damage may
occur and / or the unit may not fulfil its specifications. All
these matters may mean that the guarantee may become
invalid.
1.3 QUALITY
During the production and prior to their delivery, all our
units are exhaustively tested and inspected. The
guarantee period is two years.
1.4 VALIDITY OF THIS MANUAL
All the specifications, provisions and instructions contained
in this manual apply solely to the MASTERVOLT-delivered
standard versions of the Mass Systemswitch.
1.5 LIABILITY
MASTERVOLT can accept no liability for:
Consequential damage due to use of the Mass
Systemswitch.
Possible errors in the manuals and the results thereof.
CAUTION!
Never remove the identification label.
Important technical information required for service,
maintenance & secondary delivery of parts can be derived
from the identification label.
1.6 DISCLAIMER
Our products are subject to continual development and
improvement. Therefore, additions or modifications to the
products may cause changes to the technical data and
functional specifications. No rights can be derived from
this document. Please consult our most current Terms &
Conditions of Sale.

4
Mass Systemswitch 16 kW (230V) –User and Installation Manual
4May 2007 / Mass Systemswitch / EN
2 SAFETY GUIDELINES AND MEASURES
2.1 USE FOR INTENDED PURPOSE
1. The Mass Systemswitch is constructed as per the
applicable low voltage directive.
2. Use the Mass Systemswitch only:
in a technically correct condition
in a closed room, protected against rain, moisture,
dust and non-condensing circumstances
observing the instructions and specifications in the
manual
as a stand-alone unit or in combination with a
Mastervolt remote control systems.
WARNING
Never use the Mass Systemswitch at
locations where there is danger of gas or dust
explosion!
3. Use other than as mentioned under 2 is not
considered to be consistent with the intended
purpose. MASTERVOLT is not liable for any damage
resulting from the above.
2.2 ORGANISATIONAL MEASURES
The user must always:
have access to the user manual
be familiar with the contents of this manual. This
applies particularly to Chapter 2, Safety Guidelines &
Measures.
2.3 WARNING OF SPECIAL DANGERS
1. Check the wiring at least once a year. Defects such
as loose connections, burnt wiring etc. must be
corrected immediately.
2. Do not work on the Mass Systemswitch or the
electrical system if it is still connected to a power
source. Only allow changes in your electrical system
to be carried out by qualified electricians.
3. Installation must be done in accordance with local
standards.
4. Voltages above 34 V can be dangerous. Use caution
and pay careful attention when installing the Mass
Systemswitch. Avoid short circuiting.

Mass Systemswitch 16 kW (230V) –User and Installation Manual
5
3 HOW IT WORKS
3.1 SOURCE PRIORITY
The Mass Systemswitch switches the right AC power
source to the output(s). Therefore the Mass Systemswitch
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(s).
See figure 1. The generator input has the highest priority:
when generator power is available, all outputs (except the
inverter only output) are supplied by the generator. Power
on the shore input and/or the inverter input will be denied
even when they are available.
The shore input has the second priority. If there is no
generator power available, shore power will be transferred
to the power output and the short break output. Power on
the inverter input will be denied.
The lowest priority is assigned to the inverter. AC power
on the inverter input is transferred to the short break
output only when no other power source is available.
3.2 AC INPUTS
Three AC-sources can be connected to the Mass
Systemswitch:
Inverter power (IN3)
Shore power (IN2)
Generator power (IN1)
3.2.1 Only inverter power available
When there is no AC power available on the generator
input or the shore input, power from the inverter input is
transferred to the short break output only. The power
output and the generator only output are unavailable now.
The Mass Systemswitch is in a neutral state and
consumes no energy itself.
3.2.2 Shore power available
When there is no generator power available but AC power
is available on the shore input, the Mass Systemswitch will
supply both the power output and the Short break output
with AC power from the shore input. The generator only
output is unavailable now.
Figure 1: principle schematics of the Mass Systemswitch
3.2.3 Generator power available
When the generator is started, a control circuit samples its
output voltage and frequency. Only when both are within
allowed limits for approximately 10 seconds, the Mass
Systemswitch transfers the power from the generator input
to all outputs (except for the inverter only output).
Too low generator frequency and voltage may cause
damage to both the generator and the connected load.
Therefore AC power on the generator input is continuously
checked by a control circuit. If the generator frequency or
voltage is too low, generator power is immediately cut off
from the load.
The 10 seconds time delay provides an ‘easy start up’ for
the generator. This increases the generator’s lifetime.
3.3 AC OUTPUTS
The Mass Systemswitch has the following AC-outputs:
Inverter only output
Short break output
Power output
Generator only output

6
Mass Systemswitch 16 kW (230V) –User and Installation Manual
3.3.1 Inverter only output (no break)
The Inverter only output is directly powered by the inverter.
This means that this output will never be transferred to one
of the other AC sources. Critical loads, like a computer or
navigations equipment which are sensitive for voltage
drops, should be connected to this output.
3.3.2 Short break output
The Short break output is transferred between the
generator input, shore input and inverter input, depending
on the availability. In principle, AC-power is always
available on this output.
CAUTION!
During transfer between the AC inputs, users
are not supplied with power for a short time.
Because of this, computers etc. connected to
this output might lose data.
Due to the source priority, this output is supplied by shore
power if available. And also, if generator power is
available, this output will be supplied by the generator
input. This means that the generator input has a higher
priority than shore input and the shore input has a higher
priority than inverter input. This preferent behaviour is not
always wanted. For instance if the external shore power
breaker is only 4A, it is not possible to power the whole
electrical system at the same time. It is however possible
to override this preference manually by means of the load
on inverter mode. See section 3.5 for additional
information.
3.3.3 Power output
Depending on its availability, the power output is powered
by the generator input or the shore input. The generator is
the highest in priority and therefore overrules the shore
power. Medium power loads like the battery charger must
be connected to this output.
3.3.4 Generator only output
Finally the generator only output is powered by the
generator only. Larger loads like a water maker or an
electric cooking appliance should be connected to this
output.
Figure 2: Indicator lights on front of the Mass Systemswitch
3.4 MONITORING AND CONTROL
The LED indicators on the front of the cabinet indicate the
status your AC installation. The meaning of the LEDs is
explained in figure 2.
3.4.1 Remote control panel (optional)
For remote operation Mastervolt offers a wide range of
intelligent remote control panels that can be connected to
the Mass Systemswitch, giving you a status overview of
the available AC-power sources. Besides when a remote
control panel is applied, a very useful feature of the Mass
Systemswitch can be used: the load on inverter mode.
Incoming AC power is available on
the generator input.
Incoming shore power is available
on the Shore input.
Incoming AC power from the inverter
is available on the Inverter input.
Load on inverter illuminates if the
load on inverter mode is activated.
See section 3.5.
AC power is available on the
Generator only output
AC power is available on the Power
output
AC power is available on the
Shortbreak output
AC power is available on the
Inverter output

Mass Systemswitch 16 kW (230V) –User and Installation Manual
7
3.4.2 MasterBus (optional)
The Mass Systemswitch is compatible with the MasterBus
network: a fully decentralized data network for
communication between Mastervolt devices such as the
inverter, battery charger, generator, batteries and many
more. See section 5 for details.
3.5 LOAD ON INVERTER MODE
The Short break output is transferred between the
generator input, shore input and inverter input, depending
on its availability. However, to prevent the generator from
an overload situation or to prevent the shore fuse from
tripping, the load that is connected to the Short break
output can be switched either manually or automatically
from the generator or shore power to the output of the
inverter. We call this the “load on inverter mode” or the
“force to inverter mode”.
When the load on inverter mode is switched OFF (figure
3), the Mass Systemswitch is in normal state. This means
that the Short break output is transferred between the
generator input, shore input and inverter input, depending
on the availability.
When the load on inverter mode is switched ON (figure 4),
power from the generator or the shore can no longer be
used to supply the Short break output. The Short break
output will only be supplied by the inverter. See the
manual of the remote operation panel to toggle the load on
inverter mode manually.
Figure 3: Load on inverter mode is OFF, while power from
the generator or the shore is available
Figure 4: Load on inverter mode is ON, while power from
the generator or the shore is available
3.6 AUTOMATIC LOAD ON INVERTER MODE
It is also possible to toggle the load on inverter mode
automatically. Then the load on inverter mode will be
switched ON when the current on the shore input or the
generator input exceeds a predefined set point. Then we
call it the “automatic load on inverter mode” or the
“automatic force to inverter mode”.
3.6.1 Traditional remote control panel
If a traditional remote control panel is applied, the
“automatic load on inverter mode” can be triggered by:
- The generator current (delayed)
- The shore current (not delayed)
To adjust the settings of the automatic load on inverter
mode refer to ADVANCED A-menu of the manual of the
remote operation panel.
3.6.2 MasterBus
If the Mass Systemswitch is controlled by MasterBus,
operation of the “automatic load on inverter mode” can be
programmed by means of an event-based command. See
section 6.3 for details. Refer to the manual of the
MasterBus remote panel for details about programming of
event-based commands.
3.6.3 Example
See figure 5. A coffee machine is switched on, causing an
extra load on the shore/generator. When the total load that
is connected to the shore or the generator exceeds its
maximum current level, first a time delay is triggered. After
this delay time the automatic load on inverter mode will be
activated: a part of the total load is switched from the
generator/ shore to the AC output of the inverter. When
the automatic load on inverter mode is activated, it is
switched off again when the adjusted time has elapsed.
Generator
or shore
Generator
or Power
Inverter
Short break
Generator
or shore
Generator
or Power
Inverter
Short break

8
Mass Systemswitch 16 kW (230V) –User and Installation Manual
Figure 5: Settings of the “Automatic load on inverter”- mode
Load on inverter mode active
Actual shore or generator load
Inverter load
Load
Time
Switching on delay time
(shore load only)
Maximum available shore or
generator power
Switching on level of the load
on inverter mode
Run time of the load on
inverter mode

Mass Systemswitch 16 kW (230V) –User and Installation Manual
9
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 Mass Systemswitch.
4.1 GENERAL
During installation and commissioning of the Mass
Systemswitch the Safety Guidelines and Measurements
are applicable at all times. See section 2 of this manual.
After unpacking, check the Mass Systemswitch for
possible damage. Do not use the Mass Systemswitch if
the cabinet is damaged.
4.2 ENVIRONMENT
Obey the following stipulations during installation:
The Mass Systemswitch is designed for indoor use
only.
Humidity: 0-95% non-condensing.
Mount the Mass Systemswitch on a solid surface, with
the connecting cables downwards.
4.3 TOOLS REQUIRED FOR INSTALLATION
We recommend as a minimum tool kit:
Flat blade screw driver 1.0 x 4.0 mm to fix the screw
terminals of the AC wiring.
Flat blade screw driver 0.6 x 3.5 mm for connection of
the remote panel.
Tools to fix the screws / bolts (Ø 6mm) with plugs to
mount the cabinets to a surface.
Phillips screw driver number 2 to open the connection
area of the Mass Systemswitch.
4.4 MOUNTING OF THE CABINET
Take the following steps to mount the cabinet:
1. Determine for the four mounting spots on the basis of
the outline drawings (section 6.2 Dimensions).
2. Fix the screws (Ø 6mm) into the surface but do not
tighten them entirely.
3. Place the housing over the screws.
4. Fix the housing by fastening the screws securely.
Figure 6: mounting of the cabinet
4.5 OPENING THE CONNECTION COMPARTMENT
See figure 7. Steps:
1. Loosen the two Phillips screws A and B that secure
the front cover plate two turns.
2. Slide the front cover plate from the cabinet (C)
(downwards).
3. The terminals and cable glands are now accessible.
Note: If necessary you can also remove the gland plate
by loosening screws D, E and F. Read section 4.13
carefully to close the connection compartment
again.
Always close the connection compartment prior to
commissioning of the Mass Systemswitch.
4.6 WIRE CROSS SECTION
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 A
2.5 mm²
AWG 13
16-32 A
4 mm²
AWG 11
32-48 A
6 mm²
AWG 9
48-80 A
10 mm²
AWG 7
WARNING
Use cables with the right wire cross section!
Under-sized wires and/or loose connections can cause
dangerous overheating of the wires and/or terminals.
Therefore use the proper size and tighten all connections
well, in order to limit transition resistance as far as
possible.
TRA

10
Mass Systemswitch 16 kW (230V) –User and Installation Manual
Figure 7: opening of the connection compartment
4.7 GROUND CONNECTIONS
The ground wire offers protection only if the cabinet of the
Mass Systemswitch is connected to the system ground.
Connect the inverter’s earth terminal (PE) to the hull or the
chassis.
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/vehicle. Improper ground connections might lead to
life threatening situations. A reliable ground connection is
made by connecting the sources and the consumers to the
ground terminal (ref. 10) of the Mass Systemswitch. 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.
4.8 WIRING
The wiring is connected inside the connection
compartment. If necessary, the cabling can be fed from
the top to the bottom side of the cabinet along the back of
the cabinet. Always feed the wiring through the cable
glands of the cabinet, and then connect the wiring to the
terminals.
Fix the phase line wire to the L terminal, the neutral wires
to the N terminal. Fix the ground wires (PE) to the ground
terminal bus bar (ref. 10).
A
B
C
D
E
F
Front cover plate
Gland plate

Mass Systemswitch 16 kW (230V) –User and Installation Manual
11
Figure 8
4.9 INPUTS
See figure 8 and the table below to connect the AC power
sources. Refer to section 3.2 for additional information
about the AC inputs.
Terminals
AC source

Generator

Shore power connection

Inverter
Figure 9: Connections to the AC sources
This Mass Systemswitch is provided with a ground
bonding terminal (ref 8) which is indicated by “N-INV”. It
allows you to connect the Safety Ground (PE) of the
inverter to the neutral conductor (N) of electrical
installation. Refer to local regulations on this issue.
4.10 OUTPUTS
The output terminals are situated on the right hand side.
Connect the load to the terminals as indicated in figure 8
and figure 10.
Terminals
AC output

Inverter only

Short break

Power

Generator only
Figure 10: Connections to the AC output groups
Refer to section 3.3 for additional information about the
use of the above mentioned AC output groups.

12
Mass Systemswitch 16 kW (230V) –User and Installation Manual
4.11 REMOTE PANEL (OPTIONAL)
See figure 8. If a Mastervolt remote control panel is
applied, you can fix the wires of the 10x0.5 mm² cable
from the remote panel to the remote control connector (ref
9 in figure 11) See also section INSTALLATION of the
manual of the remote control panel. These signals are
galvanically isolated from the mains grid.
Note: for an easy installation you can pull the screw
connector from the holder on the printed circuit board.
Pin
Function
1
- load on inverter
2
+ load on inverter
3
GND
4
U Generator
5
U shore
6
U inverter
7
System voltage
8
+ 12V power
9
GND
10
AC current
Figure 11: Pin configuration of the 10-pole connector to
the remote control panel
4.12 MASTERBUS (OPTIONAL)
See figure 8. The Mass Systemswitch can be connected to
the MasterBus network by means of the two data ports
(figure 8, reference 11). See also section 5.3 for details.
Note: For remote operation of the Mass Systemswitch
you have to choose between either the MasterBus
network or a remote panel as described in section
4.11. You cannot use both.
4.13 COMMISSIONING AFTER INSTALLATION
Follow the steps described below to switch on the Mass
Systemswitch.
1. Tighten all cable glands to ensure the pull relief.
2. Check all wiring and connections.
3. Close the front cover plate of the connection
compartment.
Note: If the gland plate was removed during installation,
be sure to slide back the cover plate before you fix
screws D and E (see figure 7).
4. Switch on the AC power sources.
Now the Mass Systemswitch is ready for operation.
4.13.1 MasterBus (optional)
During first commissioning the Mass Systemswitch will be
recognized by the MasterBus network automatically. The
remote control panel of the MasterBus network will
indicate that a new device was found.
The factory settings of the Mass Systemswitch are optimal
for most installations. In some applications however, it is
desirable to change settings. See section 6.3 for an
overview of all available settings. Refer to the user manual
of the remote control panel to change these settings.
Note: Some settings can only be changed via the
MasterBus interface. If changes were made to the
factory settings, all LEDs will flash three times
during powering of the Mass Systemswitch, i.e.
when either generator or shore input comes
available or when the MasterBus is powered.
4.14 DECOMMISSIONING
If it is necessary to put the Mass Systemswitch 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 connection compartment of the Mass
Systemswitch (see paragraph 4.5).
4. Check with a suitable voltage meter whether the
inputs and the outputs of the Mass Systemswitch are
voltage free.
5. Disconnect all wiring.
Now the Mass Systemswitch can be demounted in a safe
way.
4.15 STORAGE AND TRANSPORTATION
When not installed, store the Mass Systemswitch in the
original packing, in a dry and dust free environment.
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.
4.16 RE-INSTALLATION
To reinstall the Mass Systemswitch, follow the instructions
as described in section 4.

Mass Systemswitch 16 kW (230V) –User and Installation Manual
13
5 MASTERBUS
5.1 WHAT IS MASTERBUS?
All devices that are suitable for MasterBus are
marked by the MasterBus symbol.
MasterBus is a fully decentralized data network for
communication between the different Mastervolt system
devices. It is a CAN-bus based communication network
which has proven itself as a reliable bus-system in
automotive applications. MasterBus is used as power
management system for all connected devices, such as
the inverter, battery charger, generator and many more.
This gives the possibility for communication between the
connected devices, for instance to start the generator
when the batteries are low.
MasterBus reduces complexity of electrical systems by
using UTP patch cables. All system components are
simply chained together. Therefore each device is
equipped with two MasterBus data ports. When two or
more devices are connected to each other through these
data ports, they form a local data network, called the
MasterBus. The results are a reduction of material costs
as only a few electrical cables are needed and less
installation time.
For central monitoring and control of the connected
devices Mastervolt offers a wide range of panels which
show full status information of your electrical system at a
glance and a push of a button.
New devices can be added to the existing network in a
very easy way by just extending the network. This gives
the MasterBus network a high degree of flexibility for
extended system configuration, not only today, but in the
future as well! Mastervolt also offers several interfaces,
making even non-MasterBus devices suitable to operate in
the MasterBus network.
5.2 EVENT BASED COMMANDS
With MasterBus each device can be programmed to
initiate an action at another connected device. This is done
by means of event based commands.
Example: if the shore power is almost in overload, the
generator must be started. As the shore power is
measured by the Mass Systemswitch, this device is
considered as the command source. The generator is the
device that should initiate an action (start the generator),
and is therefore considered to be the target. This means
that the Mass Systemswitch must be programmed as
follows:
Event
source:
Shore pre
overload
Select from list of events
sources (see Mass
Systemswitch manual)
Event
target:
Generator
Select from the device list
(devices connected to
MasterBus)
Event
command:
Status
Select event command from
the list of event commands of
the target (see Generator
manual)
Event
data:
On
Select event data from the
list of event commands of the
target (see Generator
manual)
See section 6.3.4 for the list of events sources and section
6.3.5 for the list of event commands of the Mass System-
switch.

14
Mass Systemswitch 16 kW (230V) –User and Installation Manual
5.3 HOW TO SET UP A MASTERBUS NETWORK
Each device that is suitable for the MasterBus network is
equipped with two data ports. When two or more devices
are connected to each other through these ports, they
form a local data network, called the MasterBus.
Keep the following rules in mind:
Connections between the devices are made by
standard straight UTP patch cables. Mastervolt can
supply these cables.
OK
As with all high speed data networks, MasterBus
needs a terminating device on both ends of the
network.
OK
The electric power for the network comes from the
connected devices.
At least one device in the network should have
powering capabilities (see specifications).
One powering device can power up to three non-
powering devices.
As all powering devices are galvanically isolated,
multiple powering devices are allowed.
OK
Do not make ring networks.
Do not make T-connections in the network.

Mass Systemswitch 16 kW (230V) –User and Installation Manual
15
6 SPECIFICATIONS
6.1 TECHNICAL DATA
Model
Mass Systemswitch 16
Part number:
55008205
Function of the product:
Automatic transfer switch system between single phase 230V power sources and output
groups. Additional external circuit breakers must be applied (installation dependent)
Manufacturer:
Mastervolt, Amsterdam, the Netherlands
System voltage:
Single phase 200 –250 VAC / 50-60Hz
Nominal input current
- Generator input:
63A
- Shore input:
40A
- Inverter input:
25A
Earth leakage breaker (RCCB):
N/A, must be applied externally (installation dependent)
Nominal output current
- Inverter only output:
25A
- Short break output:
25A
- Power output:
40A
- Generator only output:
63A
Automatic circuit breakers:
N/A, must be applied externally (installation dependent)
General
Power consumption:
(AC available on all inputs)
33VA ± 10%
Power consumption:
(only inverter power available)
< 1VA
Connection for optional
Mastervolt remote panel:
Yes, see www.mastervolt.com for an overview of available models
Compatible with MasterBus
Yes, see section 6.3 for settings
LED indications:
AC source present for each input, AC output present for each output and Load on inverter
Switching time:
On: 12…22ms / Off: 4…19ms
Standard settings threshold values Generator input pass through (adjustable via MasterBus, see section 6.3)
- Voltage:
On: > 205V ± 5% / Off: < 150V
- Frequency:
On: > 48Hz ± 5% / Off: < 43 Hz
- Delay time:
Approximately 10 sec.
Environment
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
Enclosure
Dimensions, H x W x D:
340x261x144 mm / 13.4x10.3x5.7 inch. See also section 6.2.
Approximate weight:
5.0 kg / 11.1 Lbs ± 5%
Protection degree:
IP23
Terminals
Wire size:
Recommended torque:
AC inputs and outputs:
0.5 - 10mm² / AWG 20 - 7
1.2 –1.5 Nm / 11 –13 In Lbs
Recommended strip length: 12mm / 0.5 inch
Remote control panel:
0.14 –2.5mm² / AWG 26 - 13
0.5 –0.6 Nm / 4.4 –5.3 In Lbs
All specifications are subject to change without prior notice.

16
Mass Systemswitch 16 kW (230V) –User and Installation Manual
6.2 DIMENSIONS
Figure 12: dimensions of the Mass Systemswitch
All dimensions are in millimeters.

Mass Systemswitch 16 kW (230V) –User and Installation Manual
17
6.3 MASTERBUS
6.3.1 Menu level 2: Monitoring
Value
Meaning
Default
Adjustable
range
Load on inverter
See section 3.6
Auto
Auto/On/Off
Short break src
Shows name of the input that supplies electric power to the short
break output of the Mass Systemswitch at this moment.
Generator/
Shore/ Inverter
(read only)
Power source
Shows name of the input that supplies electric power to the power
output of the Mass Systemswitch at this moment.
Generator/
Shore
(read only)
Gen. voltage
Actual voltage of the generator (V)
(read only)
Gen. Frequency
Actual frequency of the generator (Hz)
(read only)
Generator load
Actual power of the generator (kVA)
(read only)
Shore voltage
Actual voltage of the shore power (V)
(read only)
Shore fuse
Setting of the shore fuse. This setting is used as threshold for the
“automatic load on inverter mode” function
40A
(25A)
0-40A
(0-25A)
Pwr src current
Actual input current (Amps) of the AC-source that feeds the Power
output of the Mass Systemswitch. The actual AC-source is either
the generator or shore, depending on its availability (see “Power
source” above).
(read only)
Pwr src limit
Maximum allowed input current (Amps) of the AC-source that feeds
the Power output of the Mass Systemswitch. The actual AC-source
is either the generator or shore, depending on its availability (see
“Power source” above).
Shore: see
Shore fuse;
section 6.3.1.
Generator: see
Generator
Power; section
6.3.3
(read only)
6.3.2 Menu level 3: History
This menu shows the absolute maximum readings
Value
Meaning
Factory
setting
Adjustable.
range
Generator
Gen power max
Maximum recorded power supplied at the generator input.
--
(read only)
Gen freq. min
Lowest frequency recorded at the generator input.
--
(read only)
Gen freq. max
Highest frequency recorded at the generator input.
--
(read only)
Gen voltage min
Lowest voltage recorded at the generator input. This value is always
above Gen. U low off (see section 6.3.3).
--
(read only)
Gen voltage max
Highest voltage recorded at the generator input.
--
(read only)
Shore
Shore power max
Maximum recorded power supplied at the shore input
--
(read only)
Shore freq. min
Lowest frequency recorded at the shore input.
--
(read only)
Shore freq. max
Highest frequency recorded at the shore input.
--
(read only)
Shore volt. min
Lowest voltage recorded at the shore input.
--
(read only)
Shore volt. max
Highest voltage recorded at the shore input.
--
(read only)
Inverter
Inv freq. min
Lowest frequency recorded at the inverter input.
--
(read only)
Inv freq. max
Highest frequency recorded at the inverter input.
--
(read only)
Inv. volt. min
Lowest voltage recorded at the inverter input.
--
(read only)
Inv. volt. max
Highest voltage recorded at the inverter input.
--
(read only)

18
Mass Systemswitch 16 kW (230V) –User and Installation Manual
6.3.3 Menu level 3: Configuration
Value
Meaning
Factory
setting
Adjustable. range
General
Language
Language that is displayed on a monitoring device connected
to the MasterBus
English
English/ Nederlands/
Deutsch/ Français
Device
name
Name of this device. This name will be recognized by all
connected devices
Systemswitch
0-12 chars
Generator
Gen. U low
on
Lower acceptance voltage for pass through of AC power at the
generator input
205V
191-223V
Gen. U low
off
Lower rejection voltage for pass through of AC power at the
generator input
150V
124-177V
Gen. F low
on
Lower acceptance frequency for pass through of AC power at
the generator input
48Hz
41-60Hz
Gen. F low
off
Lower rejection frequency for pass through of AC power at the
generator input
43Hz
35-55Hz
Ignore gen
freq.
If set to On, the generator input ignores the frequency of AC
power at the generator input
Off
Off/On
Generator
Power
Maximum power of the AC-source that is connected to the
Generator input. In general, this is the nominal output power of
the generator set.
16kVA
0-16.0kVA
Names
Shore
name
Name of the AC input Shore
Shore
0-16 characters
Generator
name
Name of the AC input Generator
Generator
0-16 characters
Auto load
on inv.
LOI gen
load
The automatic load on inverter mode (see sections 3.6) will be
triggered when the generator load exceeds this percentage
(percentage of the Generator Power setting).
100%
0-100%
LOI gen
delay
Time delay for the automatic load on inverter mode (see
sections 3.6) caused by a generator overload. It prevents the
automatic load on inverter mode being activated due to a short-
time peakcurrent.
5s
0-30s
LOI
generator
To enable the automatic load on inverter mode triggered by the
generator load, this parameter must be set to “On”
Off
Off/On
LOI shore
load
The automatic load on inverter mode (see sections 3.6) will be
triggered when the shore load exceeds this percentage
(percentage of the Shore fuse setting; see section 6.3.1)
100%
0-100%
LOI shore
To enable the automatic load on inverter mode triggered by the
shore load, this parameter must be set to “On”
Off
Off/On
LOI runtime
When the automatic load on inverter mode is activated, it is
switched off again when the adjusted time has elapsed.
120min
5-540min
Events
Event x
source
Event-based command (see section 5.2)
Event by the Mass Systemswitch that should result in an action
by one of the other devices on the MasterBus network
(See List of events,
section 6.3.4)
Event x
target
Event-based command (see section 5.2)
Selection of device on the MasterBus network that should take
action due to an event. by the Mass Systemswitch
(See Device list on the
remote control panel)
Event x
command
Event-based command (see section 5.2)
Action to be taken by the selected device.
(See List of event
commands in the manual
of the selected device,)
Event x
data
Event-based command (see section 5.2)
Value of the action to be taken by the selected device.
(See List of event
commands in the manual
of the selected device,)
Art. nr
Serial
Shows the article number and the serial number of the Mass
Systemswitch
(read only)

Mass Systemswitch 16 kW (230V) –User and Installation Manual
19
6.3.4 List of event sources
Below the list of event sources of the Mass Systemswitch is shown. These event sources can be used to initiate an event
command at another device that is connected to the MasterBus.
Event source
Description
Gen pre overload
Actual power at the Generator input is more than 80% of the Generator power setting (see section
6.3.3). This event is cancelled again when the power at the Generator input is less than 75% of the
Generator power setting.
Gen. overload
Actual power at the Generator input is more than the Generator power setting (see section 6.3.3).
This event is cancelled again when the power at the Generator input is less than 95% of the
Generator power setting
Generator OK
AC power is available on the generator input and within specifications
Shore pre overld
Actual power at the Shore input is more than 80% of the Shore fuse setting (see section 6.3.1). This
event is cancelled again when the power at the Shore input is less than 75% of the Shore fuse
setting.
Shore Overload
Power at the Shore input is more than the Shore fuse setting (see section 6.3.1). This event is
cancelled again when the power at the Shore input is less than 95% of the Shore fuse setting
Shore OK
AC power is available on the Shore input and within specifications
Pwr pre overload
Actual power connected to the Power output is more than 80% of the maximum allowed output
current (see section 6.3.1, “Pwr src limit”)
This event is cancelled when the actual power is less than 75% again.
Power overload
Actual power connected to the Power output is more than the maximum allowed output current (see
section 6.3.1, “Pwr src limit”)
This event is cancelled when the actual power is less than 95% again.
Power OK
AC power is available on the Power output and within specifications
6.3.5 List of event commands
With this version of the Mass Systemswitch programming of event commands at the Mass Systemswitch is not possible.
6.3.6 Personal settings and notes
Use the table below to fill in your personal settings and notes.
Value
Default
Personal setting
Load on Inv
Auto
Device name
Systemswitch
Gen. U low on
205V
Gen. U low off
150V
Gen. F low on
48Hz
Gen. F low off
43Hz
Ignore gen freq.
Off
Generator Power
16kVA
Shore name
Shore
Generator name
Generator
LOI gen load
100%
LOI gen delay
5s
LOI generator
Off
LOI shore load
100%
LOI shore
Off
LOI runtime
120min

EMEA
Snijdersbergweg 93
1105 AN AMSTERDAM
The Netherlands
[phone]
[email protected]
NORTH AMERICA
N86 W12500 Westbrook Crossing
Menomonee Falls, WISCONSIN 53051
USA
[phone], Option 1
[email protected]
ASIA/PACIFIC
42 Apollo Drive, Rosedale
AUCKLAND 0632
New Zealand
+ 64 9 415 7261
[email protected]
Copyright © 2019 Mastervolt. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of the contents in this
document in any form without the prior written permission of Mastervolt is prohibited.