DOMETIC MSI912 Energy and Lighting Sinepower User Manual

: June 17, 2024
: Dometic

DOMETIC MSI912 Energy and Lighting Sinepower

Product Information

Specifications
- Model: MSI912, MSI1812T
- Type: Sine wave inverter
- Output Voltage: Household voltage from the socket (pure sine wave, THD < 3%)
- Input Voltage: 12 Vg
General Safety Instructions
- WARNING! Safety instruction: Failure to observe this instruction can cause fatal or serious injury.
- NOTICE! Failure to observe this instruction can cause material damage and impair the function of the product.
Safety When Installing the Device
- When installing the device, make sure to follow these safety instructions:
- Ensure proper grounding of the device.
- Do not install the device in a location where it can be exposed to moisture or extreme temperatures.
- Keep the device away from flammable materials.
Operating the Device Safely
- When operating the device, follow these safety guidelines:
- Do not connect devices that have a higher power requirement than indicated in the technical data.
- When connecting devices with an electrical drive, such as power drills and refrigerators, be aware that they may require more power than indicated on the type plate.
- Never use the inverter on vehicles where the positive terminal of the battery is connected to the chassis.
Scope of Delivery
- The following items are included in the package:
- Sine wave inverter (MSI912 or MSI1812T)
Operating manual
- Connection cable with safety coupling (for 230 Vw output) – for MSI912
- Connection cable with safety plug (for 230 Vw supply) – for MSI912
- Remote control (optional accessory) – MCR-7 (on/off sleep mode) or MCR-9 (LED power monitoring) – for MSI1812T
Intended Use
- This inverter is intended for use in mobile homes, commercial vehicles, motor and sailing yachts, or any other location where a 12 Vg connection is available.
- It is designed to provide a pure sine wave output voltage equivalent to the household voltage from the socket.
- Please note that the electrical installation section of the manual is intended for professionals who are familiar with the applicable regulations. All other chapters are intended for general users.
Technical Description
- The SinePower MSI912 and MSI1812T inverters are lightweight and compact devices that can be easily installed.
- They operate on a 12 Vg connection and provide a pure sine wave output with low harmonic distortion (THD < 3%).
- The maximum output power and peak output power are specified in the technical data section of the manual.
- The inverter can be switched to an energy-saving mode to prevent battery discharge.
- Additionally, the MSI1812T model is equipped with a 230 Vw priority circuit, which allows it to prioritize an external 230 voltage source if available.

Product Usage Instructions

Installation
- Ensure proper grounding of the inverter.
- Select a suitable location for installation, away from moisture, extreme temperatures, and flammable materials.
- Connect the inverter to a 12 Vg power source.
- If using the MSI912 model, connect the appropriate cables for 230 Vw output and supply.
- If using the MSI1812T model, connect the optional remote control for convenient operation.
Operating the Inverter
- To operate the inverter:
- Ensure that the input power source is connected to the inverter.
- Turn on the inverter using the power switch or remote control (if applicable).
- Connect your desired devices to the inverter’s output socket.
- Monitor the power usage and battery level as needed.
- To turn off the inverter, switch off the power or use the remote control (if applicable).

FAQs

Can I use the inverter on vehicles?
- No, it is not recommended to use the inverter on vehicles where the positive terminal of the battery is connected to the chassis.
What should I do if I need more power than indicated on the type plate?
- When connecting devices with an electrical drive, such as power drills and refrigerators, be aware that they may require more power than indicated on the type plate.
- Consider using a higher-rated inverter or limiting the power consumption of connected devices.

MODELS

Please read this instruction manual carefully before installation and first use, and store it in a safe place. If you pass on the product to another person, hand over this instruction manual along with it.

Explanation of symbols

WARNING!
- Safety instruction: Failure to observe this instruction can cause fatal or serious injury.
NOTICE!
- Failure to observe this instruction can cause material damage and impair the function of the product.
NOTE
- Supplementary information for operating the product.

General safety instructions

General safety

The manufacturer accepts no liability for damage in the following cases:

Faulty assembly or connection
Damage to the product resulting from mechanical influences and excess voltage
Alterations to the product without express permission from the manufacturer
Use for purposes other than those described in the operating manual

WARNING!

Only use the device as intended.
Do not operate the device in a damp environment.
Do not operate the device near any flammable materials.
Do not operate the device in potentially explosive areas.
Maintenance and repair work may only be carried out by qualified personnel who are familiar with the risks involved and the relevant regulations.
People (including children) whose physical, sensory, or mental capacities or whose lack of experience or knowledge prevents them from using this product safely should not use it without the supervision or instruction of a responsible person.

Electrical devices are not toys

Always keep and use the device out of the reach of children.

Safety when installing the device

WARNING!

Installing the device may only be performed by qualified personnel who are familiar with the guidelines and safety precautions to be applied.
If electrical devices are incorrectly installed on boats, corrosion damage might occur. The device should be installed by a specialist (marine) electrician.
All the wiring must comply to AS3000 and AS3001.

NOTICE!

Ensure that the device is standing firmly.
The device must be set up and fastened in such a way that it cannot tip over or fall down.
Do not expose the device to a heat source (such as direct sunlight or heating). Avoid additional heating of the device in this way.
If cables have to be fed through metal walls or other walls with sharp edges, use ducts or tubes to prevent damage.
Do not lay cables which are loose or bent next to electrically conductive material (metal).
Do not pull on the cables.
Do not lay the 230 V mains cable and the 12/24 V DC cable in the same duct.
Fasten the cables securely.
Lay the cables so that they cannot be tripped over or damaged.

Operating the device safely

WARNING!

Operate the device only if you are certain that the housing and the cables are undamaged.
Even after the fuse triggers, parts of the inverter remain live.
Always disconnect the power supply when working on the device.

NOTICE!

Make sure the air inlets and outlets of the device are not covered.
Ensure good ventilation. The inverter produces dissipated heat which has to be diverted.
Do not connect the 230 V output of the inverter (fig.45, page 11 and fig.55, page 12) to a different 230 V source.

Scope of delivery

MSI912

MSI1812T

Accessories

Target group for this manual

The electrical installation (chapter “Connecting the inverter” on page 15) is intended for professionals who are familiar with the applicable regulations of the country in which the equipment is to be installed and/or used.
All other chapters are intended for the users.

Intended use

WARNING! Never use the inverter on vehicles where the positive terminal of the battery is connected to the chassis. The wave inverter converts a direct current of 12 Vg into a 200 – 240 V AC supply of 50 Hz or 60 Hz.

Technical description

The inverters can be operated wherever a 12 Vg connection (MSI912, MSI1812T) is available.
The light-weight and compact construction of this device allows for easy installation in mobile homes, commercial vehicles or motor and sailing yachts.
The output voltage corresponds to the household voltage from the socket (pure sine wave, THD < 3 %).
Please observe the values for constant output power and peak output power as indicated in chapter “Technical data” on page 29. Never connect devices that have a higher power requirement.

NOTE: Note when connecting devices with an electrical drive (such as power drills and refrigerators), that they often require more power than is indicated on the type plate.

The inverter has various protective mechanisms.

Overvoltage shutdown: The inverter shuts itself off when the voltage exceeds the cut-off value. It restarts when the voltage returns to the restart value.
Undervoltage shutdown: The inverter shuts itself off when the voltage sinks below the cut-off value. It restarts when the voltage rises to the restart value.
Excess temperature shutdown: The inverter switches off when the temperature inside the device or the temperature on the cooling element exceeds a cut-off value. It restarts when the voltage rises to the restart value.
Overload shutdown: The LED on the inverter indicates an operating fault (constant red light) when an excess load is connected or a short circuit has occurred. The fuse in the device must be pressed in again by hand after it is triggered by excess current.
Incorrect polarity protection: The incorrect polarity protection prevents the wrong polarity when connecting the inverter.
Fuses (MSI1812T only): The LED on the inverter indicates an operating fault (constant red light). The fuse in the device must be pressed in again by hand after it is triggered.

NOTE: The individual values are found in the chapter “Technical data” on page 29.

The inverter can be switched to an energy-saving mode to prevent the connected battery from discharging too quickly.
The inverter can be easily controlled using the remote control (accessory).
The SinePower MSI1812T inverters are fitted with a 230 Vw priority circuit.
If an external 230 Vw voltage is available, this will have priority. If no external 230 Vw voltage is connected, then the connected battery will be used as the power supply.

Control elements

The inverter has the following connections, displays, and control elements on the back:

MSI912

The inverter has the following connections, displays and control elements on the front:

MSI1812T

The inverter has the following connections, displays and control elements on the front:

Fitting the inverter

Tools required

For the electrical connection you will need the following tools:

Crimping tool
3multi-coloured, flexible connection cables. Determine the necessary thickness from the table in chapter “Connecting the inverter” on page 15.
Cable lugs and conductor sleeves

For fastening you will require the following tools:

Machine bolts (M4) with washers and self-locking nuts or
self-tapping screws or wood screws.

Mounting instructions

When selecting the installation location, observe the following instructions:
- The inverter can be mounted horizontally or vertically.
- The inverter must be installed in a place that is protected from moisture.
- The inverter may not be installed in the presence of flammable materials.
- The inverter may not be installed in a dusty environment.
- The place of installation must be well-ventilated. A ventilation system must be available for installations in small, enclosed spaces. The minimum clearance around the inverter must be at least 25 cm (fig.6, page 13).
- The air intake on the underside or the air outlet on the back of the inverter must remain clear.
- For ambient temperatures higher than 40 °C (such as in engine or heating compartments, or direct sunlight), the heat from the inverter under load can lead to automatic shutdown.
- The device must be installed on a level and sufficiently sturdy surface.

NOTICE! Before drilling any holes, make sure that no electrical cables or other parts of the vehicle can be damaged by drilling, sawing and filing.

Mounting the inverter

Hold the inverter against the installation location and mark the fastening points (fig.7A).
Attach the inverter using your chosen fastening method (fig.7B).

Connecting the inverter

General instructions

WARNING!
- The inverter may only be connected by a qualified workshop. The following information is intended for technicians who are familiar with the guidelines and safety precautions to be applied.
- Never use the inverter on vehicles where the positive terminal of the battery is connected to the chassis.
- If you do not fit a fuse to the positive cable, the cables can overload, which might result in a fire.
- Reversed polarity can damage the inverter.
- MSI912 only: The inverter should not be used to connect to a ring main, it must only be used to power individual appliances that are plugged into the inverter outlet either directly or using a purpose made, moulded extension lead
- When installed in vehicles or boats, the inverter must be connected to the chassis or earth.
- When setting up a socket distribution circuit (mains setup), comply with the applicable regulations.
- Only use copper cables.
- Keep the cables as short as possible (< 1.8 m).
- Keep to the specified cable cross section and fit a cable fuse (fig.83, page 16) as close to the battery as possible on the positive cable (see the table).

Connecting the inverter to the battery

NOTE: Tighten the nuts and bolts to a maximum torque of 12 – 13 Nm. Loose connections may cause overheating.

Set the main switch (fig.41, page 11 and Fig. 51, page 12) to “OFF”.
Loosen the screw (fig.81) from the red positive terminal (fig.82).
Push the cable lug (fig.82) of the positive cable into the red positive terminal and fasten it with the screw.
Connect the negative cable to the black negative terminal (fig.84).
Lay the positive cable from the inverter to the positive terminal of the vehicle battery and connect it.
Lay the negative cable from the inverter to the negative terminal of the vehicle battery and connect it.
Connect the earth terminal to the vehicle chassis.

Connecting the 230 V power cable (MSI1812T only)

Connect the 230 Vw connection cable with safety plug to the 230 Vw input jack (fig.56, page 12).
Connect the safety plug to the 230 V AC mains.

Connecting the 230 V output cable (MSI1812T only)

WARNING! Before connecting the 230V output cable, make sure the inverter is switched off at the main switch.

Connect the 230 Vw connection cable with safety plug to the 230 Vw output jack (fig.55, page 12).

Connect multiple appliances (MSI1812T only)

The device is equipped at delivery with galvanic isolation.
For the safe operation of multiple appliances, a circuit breaker (residual current circuit breaker) must be built into the socket distribution circuit, see the sample circuit diagram in Fig. 9.

WARNING! Danger of electrocution!

If you wish to connect more than one appliance to the inverter and install a socket distribution circuit, you must arrange a circuit breaker (residual current circuit breaker) and set a grounding bridge in the inverter.
Install a residual current circuit breaker in the socket distribution circuit.

Setting the earthing bridge (fig.58, page 12) (MSI1812T only)

Remove the earthing screw from the top hole.
Screw the screw into the bottom hole.

Connecting the MCR-7 or MCR-9 remote control (accessory)

NOTICE!
- Only plug in the connection to the remote control in the remote port. The device can be damaged by connecting it incorrectly.
- Ensure that the remote control and inverter are supplied with the same input voltage.
- Follow the instruction manual of the remote control.
- Connect the remote control (accessory) to the remote port (fig.32, page 10).

Connecting the external switch for turning on and off

NOTE: Use cables with a cable cross-section of 0.25 – 0.75 mm².You can use the following as an external switch:

external switch, voltage supply from the inverter: fig.0
Control unit with relay or transistor circuit (TR): fig. an
external switch with a voltage supply from the battery (BAT) of the vehicle: fig. b
external switch with its voltage supply (DC POWER) e.g. from the ignition: fig. c
- Set the main switch (fig.41, page 12 and Fig. 51, page 12) to “OFF” and make sure that the connection for the remote control (fig.32, page 10) is not assigned.
- Set the main switch (fig.41, page 12 and Fig. 51, page 12) to “REMOTE”.
- Connect the external on/off switch with the connection cable to the terminal (fig.31, page 10).

Pin assignment

NOTE: Keep the cable lengths as short as possible (< 10 m), so there is no loss in the signal transmission.

The pins of the RS-232 ports are assigned as follows:

The pins of the RJ11 remote control connection are assigned as follows:

Using the inverter

Switching on the inverter

Set the main switch (fig.41, page 11 and fig.51, page 12) of the inverter to the “ON” position.
Set the On/Off switch to “OFF” to switch off.
The inverter performs a self-test.
During the self-test, the built-in speaker emits tones and the LEDs flash.
After the self-test is completed successfully, the “Input Level” (fig.42, page 11 and fig.52, page 12) and “Load Status” (fig.43, page 11 and fig.53, page 12) LEDs light up green.
Observe the following when using the device (see also chapter “Troubleshooting” on page 26)

The inverter switches off if:

the battery voltage drops below 10.5 V (12 Vg connection),
the battery voltage exceeds 16 V (12 Vg connection),
and the inverter overheats.
If this happens, shut down the inverter with the main switch (fig.41, page 11 and Fig. 51, page 12).
Check that the inverter is sufficiently ventilated and that the ventilation grilles are unimpeded.
Wait 5 – 10 minutes and switch the inverter on again without any electric consumers.
When operating the inverter at high load for lengthy periods, it is advisable to start the engine to recharge the vehicle battery.

Status indications

“Input Level” LED (fig.42, page 11 and fig.52, page 12) The “Input Level” LED shows the present range of the input voltage.

“Load Level” (fig.43, page 11 and fig.53, page 12) The “Load Level” LED shows the power being supplied by the inverter.

Configuring the inverter

NOTE: Settings can only be made using the dip switch if the S8 dip switch is “On”. You can adjust the device using the dip switch (fig.44, page 11 and fig.54, page 12).

Setting the mains voltage

You can set the mains voltage using the S1 and S2 dip switches.

Setting the mains frequency

WARNING! Danger of electrocution Only adjust the S3 DIP switch when the respective frequency for the output voltage should be used. You can set the mains frequency using the S3 dip switch.

Switching to energy-saving mode

You can set the energy-saving mode using the S4, S5 and S6 dip switches.
In this way, the battery you connect to the inverter is not discharged as quickly.
The inverter operates in energy-saving mode as long as the required power is below the set level.
If the required power exceeds the set level, the inverter works in normal mode.

The values to be set on your inverter can be found in the following table:

Defining settings
Using the S8 dip switch you can define whether the default settings or the settings of dip switches S1 – S7 are used.

Default settings

Cleaning and caring

Cleaning and caring for the inverter

NOTICE! Do not use sharp or hard objects or cleaning agents for cleaning as these may damage the product. Occasionally clean the product with a damp cloth.

Troubleshooting

WARNING! Do not open the device. You risk sustaining an electric shock by doing this.
NOTE: If you have detailed questions on the specifications of the inverter please contact the manufacturer (addresses on the back of the instruction manual).

The “Load Status” LED (fig.43, page 11 and fig.53, page 12) lights up red to indicate the fault:

Warranty

The statutory warranty period applies. If the product is defective, please contact the manufacturer’s branch in your country (see the back of the instruction manual for the addresses) or your retailer.

For repair and guarantee processing, please include the following documents when you send in the device:

A copy of the receipt with the purchasing date
A reason for the claim or description of the fault

Disposal

Place the packaging material in the appropriate recycling waste bins wherever possible.
If you wish to finally dispose of the product, ask your local recycling center or specialist dealer for details about how to do this following the applicable disposal regulations.

Technical data

NOTE
- In the event of thermal overloading, the inverter reacts by reducing the power for temperatures of 40 °C and above.
- If the temperature exceeds 60 °C, the inverter switches off.

	MSI912	MSI1812T
Rated input voltage:	12 V g

Output power

at 25 °C for 10 min:

40 °C to 60 °C (reduced power)

Dimensions

Overvoltage shutdown

Device	Overvoltage
Shutdown	Restart
MSI912, MSI1812T	16 V

Undervoltage shutdown

Device	Undervoltage warning	Undervoltage
Shutdown	Restart
MSI912, MSI1812T	11 V	10.5 V

Excess temperature shutdown

Internal temperature| Temperature on the cooling element
---|---
Shutdown| Restart| Shutdown| Restart
60 °C| 40 °C| 95 °C| <80 °C

Approvals

The device complies with Australian standards (AS/NZS 4763:2011) and IEC 60068.2.6:2007.
The device has E13 certification.

In compliance with the EMC directive 2004/108/EC including 2009/19/EC and the Low-voltage Directive 2006/95/EC

EN55012: Class B
EN55014:Class B
EN61000-6-1/6-3: Class B
EN61000-6-2/6-4: Class A
EN61204-3

CONTACT

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