UTL Gamma+ 3400 rMPPT Solar Inverter: Price, Features & Compatibility

Choosing the right solar inverter is important for getting reliable power backup and making the most of the electricity generated by your solar panels. For homes that need an off-grid solar solution with battery backup, the UTL Gamma+ 3400 rMPPT Solar Inverter is one option worth considering.

The UTL Gamma+ 3400 is a 3kVA, 24V solar inverter designed for residential applications. It features UTL's patented rMPPT technology, pure sine wave output, multiple operating modes, and compatibility with different battery types, including tubular and lithium batteries.

But is it suitable for your home? What is its price in India, how many solar panels can you connect, and which battery should you use?

This guide explains its specifications, features, compatibility, and important points to check before purchasing.

UTL Gamma+ 3400 Solar Inverter Price in India

The price of the UTL Gamma+ 3400 can vary depending on the seller, availability, delivery location, and applicable offers.

As checked on 7 November 2026, the UTL Solar online store listed the inverter at approximately ₹22,330, against a displayed MRP of ₹30,300. Another online retailer listed it at ₹20,299, inclusive of taxes.

These are online listing prices, not a guaranteed selling price from every dealer. Installation, wiring, mounting accessories, solar panels, and batteries may cost extra.

Price detail	Indicative price
Displayed MRP on UTL store	₹30,300
UTL online selling price	₹22,330
Other online retailer listing	₹20,299
Installation and accessories	Extra, as applicable

Prices may change. Contact Vigood Solartek for the latest product availability and a complete system quotation.

UTL Gamma+ 3400 Technical Specifications

The Gamma+ 3400 is designed around a 24V battery system and has a rated inverter capacity of 3,000VA.

Specification	Details
Brand	UTL Solar
Model	Gamma+ 3400
Model number	GPP3400
Inverter capacity	3,000VA / 3kVA
Battery voltage	24V
Solar technology	rMPPT
Maximum solar input power	3,000W
Solar input voltage range (Voc)	60V–106V
Maximum battery capacity stated	200Ah
Maximum output current	9A
Output waveform	Pure sine wave
Output voltage	230V
Output frequency	50Hz
Battery compatibility	Tubular and compatible lithium batteries; confirm exact battery settings
Operating modes	PCU, Smart and Hybrid
Charging method	Bulk, Absorption and Float
Protection rating	IP20
BIS approved	Yes
Warranty	3 years

Specifications are based on UTL's product information and available GPP3400 technical documentation. Confirm the latest datasheet and model revision before installation.

What Is rMPPT Technology?

One of the main features of the UTL Gamma+ 3400 is its built-in rMPPT solar charge controller.

MPPT stands for Maximum Power Point Tracking. It helps a solar inverter identify the operating point at which the solar panels can deliver useful power under changing sunlight and temperature conditions.

UTL describes its rMPPT technology as a rapid tracking system that responds to changing sunlight conditions. The manufacturer claims up to 30% more solar power harvesting compared with conventional systems.

Actual energy generation depends on panel quality, sunlight, shading, temperature, orientation, and system design. The claimed improvement should not be treated as a guaranteed increase in every installation.

Key Features of UTL Gamma+ 3400

1. Pure Sine Wave Output

The inverter provides pure sine wave output, making it suitable for common household appliances and electronic equipment within its rated capacity.

2. Built-in rMPPT Solar Controller

The built-in rMPPT controller manages solar charging and tracks available solar power. This removes the need for a separate external solar charge controller for a correctly designed compatible system.

3. Multiple Operating Modes

The Gamma+ 3400 offers three operating modes:

• PCU Mode: Manages solar and grid power according to the selected operating configuration.

• Smart Mode: Uses the inverter's automatic power-management settings.

• Hybrid Mode: Prioritises grid, solar, and battery according to the selected operating sequence.

Check the user manual for the exact behaviour of each mode before commissioning the system.

4. Multiple Battery Options

The inverter is listed as compatible with tubular and lithium batteries. UTL also mentions SMF and GEL battery compatibility in its product information.

For lithium batteries, compatibility should be confirmed at the battery-model level. Check the battery's nominal voltage, charging voltage, BMS requirements, and charging-current limits before connecting it.

5. Multi-Stage Battery Charging

The inverter uses bulk, absorption, and float charging stages. This charging approach helps manage battery charging rather than applying a constant charging voltage throughout the process.

6. DG Input Support

The Gamma+ 3400 can use a diesel generator as an input source. This can be useful in locations where grid availability is unreliable.

7. LCD Display and Protection Features

Its display provides operating information, while the inverter includes protection functions for conditions such as overload, short circuit, battery-related faults, and high or low input voltage. Refer to the latest manual for the complete protection list.

Solar Panel Compatibility and Configuration

The UTL Gamma+ 3400 supports a maximum solar power input of 3,000W. UTL publishes recommended panel configurations for this model.

Solar panel rating	Recommended configuration	Total panel capacity
590W	2S × 2P	2,360W
540W	2S × 4P	4,320W
440W	2S × 3P	2,640W
400W	2S × 4P	3,200W

Important: The configurations above are reproduced from UTL's product page. Some listed combinations calculate to more than the stated 3,000W maximum solar power. Do not assume that every listed configuration can be operated at full rated output simultaneously. Have the installer verify the latest manufacturer's configuration guidance, PV current limits, string voltage, and total permitted input power before purchasing panels.

The 2S notation means two panels connected in series. The P notation indicates parallel strings.

Can You Use 540W or 590W Solar Panels?

Yes, UTL lists these panel ratings in its recommended configurations. However, panel wattage alone does not establish compatibility.

Before connecting panels, the installer must check:

• Open-circuit voltage (Voc) of each series string.

• Operating voltage and current.

• Total PV array power.

• Parallel-string current limits.

• The inverter's permitted input range.

• Panel voltage changes at low temperatures.

The available product information lists a 60V–106V solar input range for the GPP3400. The final configuration should be checked against the exact panel datasheet and inverter manual.

Battery Compatibility: Which Battery Should You Choose?

The UTL Gamma+ 3400 uses a 24V battery system. Battery selection is important because the inverter's backup duration depends on battery capacity, appliance load, battery chemistry, and usable depth of discharge.

Tubular Battery

A suitable 24V tubular battery bank can be used for conventional home backup. In a typical 24V setup, two compatible 12V batteries are connected in series.

Lithium Battery

The manufacturer lists compatible lithium batteries, but not every lithium battery will work automatically. Confirm the required charging voltage, BMS compatibility, and battery configuration with UTL or the battery manufacturer.

How Much Backup Can You Get?

Backup time depends on the actual load and usable battery energy.

For illustration, a 24V, 150Ah battery bank has a nominal energy capacity of:

24V × 150Ah = 3,600Wh, or 3.6kWh.

If 80% of that nominal energy is considered usable, the available energy would be approximately 2.88kWh before inverter losses.

Approximate connected load	Illustrative backup
300W	9.6 hours
500W	5.8 hours
800W	3.6 hours
1,000W	2.9 hours

These are simplified estimates, not guaranteed backup times. Actual results vary with battery condition, chemistry, discharge limits, inverter efficiency, and load behaviour. A 24V battery bank must also be within the inverter's permitted battery capacity and charging limits.

Appliances You Can Run with UTL Gamma+ 3400

The inverter has a 3kVA rating and a maximum output current of 9A according to the available technical documentation. Whether an appliance can run depends on its running wattage, starting surge, power factor, and the total simultaneous load.

Common household loads that may be suitable within the system's limits include:

• LED lights

• Ceiling fans

• Television

• Wi-Fi router

• Laptop and computer

• Refrigerator, subject to starting surge

• Small household electronics

High-power appliances such as air conditioners, electric geysers, induction cooktops, and large pumps should not be assumed compatible. Check their running and starting requirements against the inverter's output and surge specifications.

UTL Gamma+ 3400 vs Other UTL Gamma+ Models

UTL offers multiple Gamma+ models. The capacity and battery voltage differ between them, so selecting a model based only on the Gamma+ name can lead to the wrong purchase.

Model	Rated capacity	Battery voltage
Gamma+ 2600	2kVA	24V
Gamma+ 3350	3kVA	24V
Gamma+ 3400	3kVA	24V

The Gamma+ 3400 is a 3kVA model with a stated maximum solar input of 3,000W. Compare the exact model number and datasheet rather than relying only on the product-series name.

Is UTL Gamma+ 3400 Suitable for Your Home?

The UTL Gamma+ 3400 may be worth considering if you:

• Need an off-grid solar inverter for a home.

• Want a 24V battery-based backup system.

• Need support for compatible tubular or lithium batteries.

• Want a built-in solar charge controller.

• Need grid or generator input support.

• Have a solar array that fits the inverter's voltage, current, and power limits.

It may not be the right choice if you need a grid-tied net-metering inverter, a three-phase system, or a larger inverter capacity for heavy appliances.

Remember that this is an off-grid solar PCU, not a standard grid-tied string inverter. Its suitability for a particular solar installation depends on the site's electrical requirements.

Things to Check Before Buying

Before purchasing the UTL Gamma+ 3400, confirm the following:

1. Exact model: Verify that the product is GPP3400 and not GPP3350 or another Gamma+ variant.

2. Solar array: Check the complete panel configuration against the latest inverter manual.

3. Battery voltage: The inverter uses a 24V battery system.

4. Lithium compatibility: Confirm the battery model, BMS, and charging settings.

5. Connected load: Calculate the running and starting load of appliances.

6. Warranty: Confirm the three-year warranty terms and authorised service arrangements.

7. Installation: Use a qualified solar installer for string design, protection devices, earthing, and wiring.

Frequently Asked Questions

1. What is the price of the UTL Gamma+ 3400 in India?

The UTL online store listed it at approximately ₹22,330 when checked on 7 November 2026. Other online listings may be lower or higher depending on the seller and offer.

2. What is the capacity of the UTL Gamma+ 3400?

It is a 3kVA solar inverter with a 24V battery system.

3. Is UTL Gamma+ 3400 compatible with lithium batteries?

UTL lists lithium battery compatibility. However, confirm the exact battery model, charging voltage, and BMS requirements before installation.

4. How many solar panels can be connected?

The inverter has a stated maximum solar input power of 3,000W. The number of panels depends on their wattage and electrical characteristics. The final series-parallel configuration must follow the latest manufacturer guidance.

5. Does UTL Gamma+ 3400 support a diesel generator?

Yes. UTL lists DG input support for the model. Check the generator's electrical output and the inverter's input requirements before connecting it.

6. What is the warranty on UTL Gamma+ 3400?

The product listing states a three-year warranty. Confirm the applicable warranty terms with the authorised seller before purchase.

7. Is UTL Gamma+ 3400 an on-grid or off-grid inverter?

It is an off-grid solar PCU designed to work with a battery bank. It should not be confused with a grid-tied net-metering inverter.

8. Can it run an air conditioner?

Do not assume that it can. Check the air conditioner's running power, starting surge, and the inverter's output limits. A larger system may be required.

Buy UTL Gamma+ 3400 from Vigood Solartek

The UTL Gamma+ 3400 rMPPT Solar Inverter is an option for users looking for a 3kVA, 24V off-grid solar system with battery backup, multiple operating modes, and built-in solar charging.

Choosing the correct solar panels and battery is just as important as selecting the inverter. A properly designed system can help improve solar utilisation and provide more reliable backup.

Contact Vigood Solartek for product availability, the latest price, and assistance in selecting compatible solar panels and batteries for your home.

Explore solar inverters, solar panels, lithium batteries, and solar installation solutions at Vigood Solartek.