MPI300M - Inverter Manta - Free user manual and instructions

Product Type	Power Inverter
Model	MPI300M
Brand	Manta
Input Voltage	12V DC
Output Voltage	230V AC
Continuous Power	300W
Peak Power	600W
USB Output	2 x 5V / 2.1A
Protections	Overload, Short Circuit, Over Temperature, Reverse Polarity
Cooling	Built-in Fan
Indicators	LED Power & Fault Status
Dimensions	150 x 100 x 60 mm
Weight	0.5 kg
Material	Aluminum Alloy
Maintenance	Keep clean and dry; avoid dust accumulation
Safety	Do not expose to water or moisture; use in well-ventilated area
Spare Parts	Not user-serviceable; contact support for repairs
Application	Car, RV, Boat, Camping, Emergency Backup
Operating Temperature	0°C to 40°C

Frequently Asked Questions - MPI300M Manta

What devices can I power with the Manta MPI300M inverter?

The inverter can power devices with a total continuous consumption of up to 300W. Suitable for laptops, small TVs, lights, fans, and chargers. Avoid high-power appliances like refrigerators or microwaves.

Can I use the inverter while the car engine is off?

Yes, but the inverter will drain your battery. It is recommended to run the engine periodically to recharge the battery, or use a deep-cycle battery for extended use.

Does the inverter have a USB port?

Yes, it has two USB ports with 5V/2.1A output each, suitable for charging smartphones, tablets, and other USB devices.

What does the red LED indicator mean?

The red LED indicates a fault condition such as overload, short circuit, or over-temperature. The inverter will shut down automatically to protect itself. Check connections and reduce load before restarting.

Is the inverter safe to use in rainy conditions?

No, the inverter is not waterproof. It should be used in a dry environment. Keep it away from water and moisture to avoid electric shock or damage.

Can I connect the inverter directly to a solar panel?

No, the inverter requires a stable 12V DC input, typically from a battery. Connecting directly to a solar panel may damage the inverter due to voltage fluctuations.

What is the maximum surge power?

The surge peak power is 600W for short durations (less than a second). This allows starting of devices with high inrush current, like small motors or compressors.

How do I clean the inverter?

Disconnect the inverter from power. Use a dry, soft cloth to wipe the exterior. Do not use any liquids or solvents. Ensure vents are free of dust for proper cooling.

What size battery do I need for extended use?

For a 300W load, a 100Ah battery can provide about 3-4 hours of use (accounting for inverter efficiency). Larger batteries give longer runtime.

Does the inverter produce a pure sine wave?

No, it produces a modified sine wave. Most electronics work fine, but sensitive equipment (e.g., medical devices, some audio equipment) may require a pure sine wave inverter.

USER MANUAL MPI300M Manta

Abstract black-and-white circular logo with interlocking curved shapes (no text or symbols)

MANTA

PRZETWORNICA SAMOCHODOWA POWER INVERTER

Model: MPI300M

PL - INSTRUKCJA OBSŁUGI

EN - USER MANUAL

DE -BENUTZERHANDBUCH

CZ-NÁVOD K OBSLUZE

SI- UPORABNIŠKI PRIROČNIK

PL - MPI300M

WPROWADZENIE

Diagram of an electronic device with a 12V battery connected to its internal components (no text or symbols beyond the label)

PL - MPI300M

PODŁĄCZENIE DO GNIAZDKA ZAPALNICZKI:

PL - MPI300M

ANALIZA USTEREK

ANALIZA TYPOWYCH USTEREK

Thank you for purchasing our MPI300M modified sine wave car converter. This converter is used to convert 12/24V DC power to 230V 50Hz AC power. Before use, please read and follow this manual carefully.

The 300W continuous power modified sine wave car converter can be used to power various devices such as televisions, computers, chargers, drills, audio equipment, vacuums, and lighting. However, please note that not all devices will work as expected with the output of modified sine wave power, and some devices require pure sine wave power. Before connecting a device to the converter, please check carefully if the device is compatible with such power output.

Do not use electrical charging that requires more than 300W continuously!

This device is only suitable for vehicles with 12V or 24V electrical systems!

SAFETY PRECAUTIONS

This chapter covers safety precautions. Please read it carefully before using our products to ensure personal safety and prevent equipment damage.

Avoid storing the product in an environment with corrosive gases, high humidity, excessive heat, strong pollutants, shocks, and electromagnetic interference.
Do not attempt to repair or disassemble the product on your own.
◆ Keep all product information for safety.

The power inverter generates high temperature and pressure. Before using the device, please read the instruction manual and safety rules. Otherwise, it may lead to equipment damage or personal injury.

Different brands and sizes of batteries have different constant voltages (DC). Make sure the input voltage is compatible with the battery. If necessary, contact the manufacturer for additional information. Due to changes in the configuration, structure, and components of the system, consult with the manufacturer before performing any operation, as improper actions may result in property damage.

Note: Our company is not responsible for failure to comply with safety rules and safety standards.

DANGER OF ELECTRIC SHOCK! DANGER OF HIGH VOLTAGE!

EN - MPI300M

To avoid the risk of injury or death, follow these safety rules when using a car power inverter:

◆ Repairs and maintenance of the power inverter are allowed only for a professional service technician. Do not attempt to make repairs on your own, as this may result in serious damage or accidents.
Do not use the power inverter if it appears to be damaged or not functioning properly in any way.
Before connecting or disconnecting the device, make sure the car power inverter is turned off and disconnected from the power source.
◆ Never attempt to disconnect or change the connections of the wires when the car power inverter is connected to the power source.
Make sure that all connections are securely protected and insulated to avoid accidental contact.
◆ Never touch the car power inverter with wet hands or when you are wet.
Do not use the car power inverter near water or other liquids.

Remember that failure to comply with these safety rules can lead to serious injury or even death.

WARNING: BEWARE OF INDUCTIVELY LOADED OBJECTS AND HALF-WAVE CIRCUITS!!

When connecting an inductive load or a half-wave rectifier load, select a converter with a power rating 2-3 times greater than the load power. An inductive load, such as motors, generators, transformers, can cause an increase in current, which can overload the converter. A half-wave rectifier load, such as drills, welding devices, can cause an increase in voltage, which can overload the converter. Before connecting such loads, ensure that the converter has sufficient power to provide safe and reliable operation.

DO NOT HOLD THE HOUSING DIRECTLY BY THE PROTRUDING ELEMENTS!

Do not hold the converter by the parts protruding from the housing, such as cooling or plugs, as this can damage the device or cause electric shock.

AVOID STATIC ELECTRICITY!

To ensure safety when using a car converter, it is recommended to avoid electrostatic accumulation. Before touching the product, ground yourself and hold the device by the housing. Avoid using the converter in places where there is a risk of electrostatic discharge, such as places with dry air and high temperatures.

EN - MPI300M

DO NOT DISASSEMBLE OR DISCONNECT THE DEVICE WHILE IT IS UNDER POWER!

Do not disassemble or install the power cord when the device is turned on. Connect the cables according to the markings.

USE STABILIZED BATTERIES!

Improperly selected batteries may cause the product to malfunction.

YOU MUST HANDLE THE BATTERY ACCORDING TO REGULATIONS

The battery should be handled according to the operating instructions, especially when connecting it to the converter. Improper handling can pose a danger to the user.

Do not connect wires in short circuit. Keep the battery clamps securely attached! Do not touch both battery clamps at the same time or uninsulated wires.
Avoid spilling electrolyte from the battery. Electrolyte can cause metal corrosion, damage to the device, and short circuits
◆ Keep the battery away from fire and other devices that may cause sparks.

AVOID DAMAGING THE FAN!

ENVIRONMENTAL CONDITIONS

To ensure safe and proper operation of the car converter, appropriate environmental conditions should be maintained. Below are recommendations for the working environment:

Operating temperature: The car converter should be operated in a temperature range of -10^ to +40^ . It should not be used in places with extreme temperatures, as this may affect the performance and life of the device. If the converter operates in a location with a temperature above 40^ , reduce its power by 10% for every degree above 1^ .
Humidity: Avoid using the car converter in places with high humidity, such as bathrooms or air-conditioned rooms without proper ventilation. Moisture can affect the operation of the device or cause damage.
◆ Dust and pollutants: The car converter should be placed in a location free of dust and pollutants, as they may settle inside the device and affect its operation.
◆ Ventilation: Provide adequate air flow around the car converter. Make sure the air inlet, device air outlet, and front fan parts are unobstructed.
◆ Working conditions: Avoid using the car converter in places with vibrations or shocks, as they may affect the operation of the device.
Safety: The car converter should be placed in a safe location, away from children and pets. Make sure that no objects can accidentally enter the device.

EN - MPI300M

WARNING! BEFORE CONNECTING THE CONVERTER TO THE POWER GRID

Do not use the AC output of the converter to connect it to the power grid, as this may cause the converter to burn out.

INSTALLATION

CONNECTION OF ELECTRICAL WIRES

CONNECTING TO THE BATTERY:

1. Before connecting the converter to the battery, make sure that the voltage is 12V or 24V.
2. Connect the red converter cable (marked as "+") to the positive pole of the battery, and the black converter cable (marked as "-") to the negative pole of the battery. Check that the cables are securely tightened.

WARNING! Reversing the poles can damage the converter and void the warranty. This should be taken into special consideration.

Diagram of a battery connected to an electronic device with labeled 12V power supply (no text or symbols beyond basic components)

EN - MPI300M

Connection to the cigarette lighter socket:

1. Connect the cigarette lighter plug cable provided with the converter to the converter. Connect the black converter cable to the black terminal on the cable and the red converter cable to the red terminal.
2. Ensure that the converter and battery plugs are securely connected, as otherwise this may cause the cable to overheat.
3. Insert the plug into the cigarette lighter socket.

Connection of devices to the drive:

1. Connect the electrical device to the power outlet or USB on the converter housing. Make sure that the device's power does not exceed the converter's power.
2. Make sure that the converter switch is in the 0 position.
3. Start the converter by setting the switch (0/1) to position 1.
4. After the green LED lights up, the connected devices can be started. However, they should be started one by one at short intervals.

NOTE! Sparks may appear when connecting to the battery. Make sure that there are no flammable materials nearby.

Turning off the converter:

1. Turn off the connected devices.
2. Set the converter switch to position 0.
3. Disconnect the converter from the power source.

The correct connection of the converter is shown in the diagram below.

EN - MPI300M

FAULT ANALYSIS

THE COMMON FAULT ANALYSIS

Fault phenomenon:	Fault analysis:	Solution:
Power light do not work	1. whether storage battery is damaged or not2. whether storage battery is in connecting right way3. fuse breaking4. the inverter start button is on	1. change battery2. check the connection of battery3. change fuse4. turn off the inverter start button
No power supply at the output (0VAC 0VDC, 0W) and red LED lit.	1. Voltage of battery is too low inverter is protecting2. over-heating protection.	1. Change battery and wait the inverter output auto-recover.2. Wait the inverter be cool, then restart the inverter.

If the converter does not work despite attempts to solve the problems, please do not try to repair it yourself. Contact an authorized service center or the manufacturer immediately for assistance.

SPECIFICATION

INPUT	Rated input voltage	12VDC	24VDC
	The range of rated input voltage	10.0~15.5VDC	19.5~30.5VDC
	Input overvoltage or undervoltage	output shutoff,voltage recovering,inverter auto-launch
	Overload,short circuit	output shutoff,restart using/inverter auto-launch when fault disappears
	overheating	output shutoff,restart using/inverter auto-launch when fault disappears
	Input polarity reversal	Blown fuse
WYJŚCIE	Rated output voltagee	220/230/240VAC
	Sine wave output	Modified sine wave
	Frequency	50Hz lub 60Hz
	LED Light	Green light: worksRed light: failure
	Operational efficiency (100% load)	>88%	>90%
	Rated output power	300W
	Peak power	600W
ENVIRONMENT	Working temperature	-10°C~40°C
	Working humidity	20%~90%RH non-condensational
	Store temperature and humidity	-20°C~55°C/10%~95%RH
	Working height	The height can not be over 1000m,or using as
	Refrigeration	Wentylatory chłodzące są sterowane temperaturą
	Adhibition	Samll medol off grid solar system,wind energy supply system,electric tools.Vehicle mounted,ships and some other portable power source.

PL, EN, DE, CZ, SI - MPI300W

Simple icon of a pen inside a circle, labeled '8' below (no text or symbols on the diagram itself)

Simple diagram of two electrical probes inside a circle, labeled with number 9 below (no text or symbols on the devices themselves)

	Polski	English	German	Czech	Slovenian
	Przetwornica samochodowa	Power inverter	Wechselrichter	Napájecí měnič	Električni pretvornik
1.	Gniazdo sieciowe EU	EU socket	EU-Netzsteckdose	Zásuvka EU	Vtičnica EU
2.	USB	USB	USB	USB	USB
3.	Wskaźnik LED	LED indicator	LED-Anzeige	LED indikátor	LED kazalec
4.	Włącz/Wyłącz	On/Off switch	Ein/Aus-Schalter	Zapnout/Vypnout	Vklop/Izklop
5.	Wiatrak	Fan	Lüfter	Větrák	Ventilator
6.	Bezpieczniki 20A	20A fuses	20A-Sicherungen	20A pojistky	20A varovalke
7.	Wejście prądu stałego (czerwony "+" czarny "-")	DC input (red "+" black "-")	Gleichstromeingang (rot "+" , schwarz "-")	DC vstup (červený "+" , černý "-")	Vhod enosmerne napetosti (rdeči "+" , črni "-")
8.	Przewody z wtyczką do gniazda zapalniczki	Plug wires for cigarette lighter socket	Steckdrähte für Zigarettenanzünderbuchse	Kabely s konektorem do zapalovače	Kabli s priključkom za vžigalnik
9.	Przewody połączeniowe	Connection wires	Verbindungskabel	Propojovací kabely	Povezovalní kabli

MANTA

Manta S.A. hereby declares that the device MPI300M complies with the EMC Directive 2014/30/EU and with the RoHS Directive 2011/65/EU.

The full text of the declaration of conformity is available at www.manta.com.pl

INFOLINIA SERWISOWA

The manufacturer reserves the right to make changes to product specifications without notice.