UTL MPPT SMU 12V/24V 40 AMP Automatic Solar Charge Controller

Original price was: ₹ 9,990.00.Current price is: ₹ 5,349.00. (Inclusive of All Taxes)

92 in stock

SKU UTL-MPPT-SMU40A Category Tags ,

Main Features:

【High Performance Micro-Controller】High efficiency (>95%) MPPT SMU, equipped with high-speed microcontroller, allowing it to perform its task more reliably and efficiently.

【Support 12V & 24V Panel with Single Battery】It support 12V solar panels with single 12V inverter-battery, 24V solar panels with 12V inverter-battery & 24V panels with 24V (12V each) inverter-battery. Maximum solar panels support = 600W for 12V DC and 1200W for 24V DC.

【In-Built Protection for Battery Under/Over-Charge】With 200Ah max. battery capacity, it uses 3 stages (Bulk/Absorption/Float) battery charging regulation method. Compatible with Tubular and SMF battery types.

【Prioritize Solar Power over Grid Power】This 12/24V 40A rMPPT SMU solar charge controller prioritizes the use of solar power over grid power in order to reduce grid consumption. It uses grid power only when solar power is insufficient to meet the load requirement.

【Wide Operating Temperature】This 40A solar charge controller can be operated in temperature ranges from 0°C to 50°C. Furthermore, it has wall-mounted fixing and can be installed in small spaces due to its compact size and lightweight.


The UTL 12V/24V 40A rMPPT SMU (Solar Management Unit) transforms your existing inverter into a solar inverter. This solar charge controller/SMU has a long operational life and is extremely reliable. This SMU protects against overcharging voltage, overcharging current, under voltage, battery reverse polarity, solar reverse polarity, reverse current flow (from battery to solar array), and overheating.

utl 40a mppt smu
utl 40a mppt smu

Useful Tips:

  1. Read the manual or instructions before installing the MPPT SMU.
  2. Installation and wiring must be done carefully by a qualified person.
  3. Avoid touching the connections while the SMU is in operational mode.
  4. Do not install the SMU on flammable construction materials.
  5. To avoid short circuits and overheating, ensure that the wires are tightly connected.


Technical Specifications of 12V/24V 40A UTL rMPPT SMU

The accessories and detailed specifications of 40 amp mppt solar management unit are listed below.




UTL MPPT SMU 12V/24V 40 AMP (Automatic)

System Operating Voltage

12V/24V DC

Solar Modules Size (Max.)

12V, 40A: Upto 600W | 24V, 40A: Upto 1200W

Max Solar Current


Display Type


Battery Charging Regulation

3 Stage (Bulk/Absorption/Float)

Display Parameters

Batt. Voltage, Batt. Current, Batt. Type (TUB/SMF), Solar Voltage, Solar Current, Solar Saving- kWh, Mode Selection (Auto/Manual), Mains Present, Absent


Batt. Reverse Polarity (Fuse Blown), Batt. Reverse Current, Over Current of SPV, Solar High Voltage, SPV Reserve Polarity, Over Temperature, Mains High Cut, Mains Low Cut

Operating Temperature

0°C to 50°C


Wall Mounted


#1. rMPPT Technology + 30% More Generation

This latest technology rMPPT SMU is equipped with P&O, Ripple Correlation Control and Incremental Conductance technologies. This 3-in-1 technology-based solar SMU generates 30% more solar power compared to other available alternatives in the market.

How MPPT SMU Works

#2. Preference To Solar Power + Long Battery Life

This 12V/24V automatic MPPT SMU prioritizes solar power over grid power. It only uses grid power when solar power is insufficient to meet all of your energy needs.

In addition to this, it improves the system’s efficiency and increases the working life of your existing inverter battery. It prevents your battery from being overcharged and deep discharged.

prefrence to solar power mppt smu feature

#3. Digital Display Feature

UTL 12V/24V 40A MPPT SMU comes with an LCD display for easy monitoring of dynamic data/figures and operating status.

It displays the data in digital format. Now you can see, compare and analyze your savings in Rs. and Units as well.

digital display mppt smu

#4. Support 12V & 24V Solar Panels

The SMU has an automatic voltage selection feature and can therefore work either with 12V or 24V solar panel. It automatically detects 12V and 24V panels and adjusts its performance accordingly. This MPPT SMU supports:

  • 12V Panel With Single 12V Battery
  • 24V Panel With Single 12V Battery
  • 24V Panel With 24V Battery (2 x 12V each)
12v 24v solar panel mppt smu
12v 24v solar panel mppt smu

The compact design, wall-mounted structure and easy connection feature make it suitable to be used in homes and other places. It is easy to install and operate. No special maintenance is required for this MPPT SMU.

mppt smu grid bypass feature
mppt smu grid bypass feature


  • The three-pin plug slot on the side is only for grid-to-inverter bypass. It will bypass the grid electricity when solar power is unavailable. So don’t get confused and don’t use this point for AC power output connections.
  • This product is not a solar inverter. It is a solar management unit/solar charge controller that is used with an existing inverter battery.

Additional information

Weight 3.11 kg
Dimensions 9.25 × 9 × 4.15 in


UTL Solar

UTL Solar is one of the best solar brands and a manufacturer of all types of solar products including solar panels, solar inverters, solar batteries and solar charge controllers. Through its extensive network in India, UTL provides a wide range of high-quality solar products and the fastest after-sale service. UTL is the only brand that offers a complete range of solar solutions under one roof. Its solar solution range includes an on-grid solar system, an off-grid solar system, and hybrid solar system.


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