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MPPT Solar Management Unit 12V/24V 40A

Brand: UTL

MPPT Solar Management Unit (SMU) 12V/24V 40A can convert your simple Inverter into Solar Inverter. SMU ensures priority usage of Solar Power to reduce Grid consumption. The SMU could charge battery automatically from photovoltaic (PV) systems. The charging process has been optimized for long battery life and improved system performance

  • High Speed and High Performance micro-controller
  • High reliability with longer operational life
  • Inbuilt protection to avoid battery undercharge and over-charge
  • Inbuilt MPPT Technology Charge Controller
  • Automatic voltage selection for 12V or 24V
  • Solar Prioritization
  • Compact design with wall mounting
  • Eco friendly

Model: SMU 122440

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Description

MPPT Solar Management Unit (SMU) 12V/24V 40A can convert your simple Inverter into Solar Inverter. SMU ensures priority usage of Solar Power to reduce Grid consumption.

The SMU could charge battery automatically from photovoltaic (PV) systems. The charging process has been optimized for long battery life and improved system performance. The comprehensive self-diagnostics and extensive electronic protection can prevent damage against incorrect wiring or system faults. The system can work as a domestic inverter and a solar inverter automatically or manually through a switch except in night condition. In night condition the system will work as normal domestic inverter.

The charging process has been optimized for long battery life and improved system performance. The comprehensive self-diagnostics and extensive electronic protection can prevent damage against incorrect wiring or system faults.

If the sunlight is full then solar charge controller charge the solar battery with the first priority of solar energy, when the battery is fully charged, it runs the load from the solar and automatically starts running the load on the power back in the evening. Solar management unit gives first priority to solar panel’s power.

In this SMU, you get the in-built MPPT Solar Charge Controller, which keeps the efficiency of solar panels and life of solar battery longer.

The best part of UTL SMU (solar management unit) is that it runs on one inverter with one battery or two batteries. It has best features to automatic battery selection. It is available in 12V or 24V with 1 year warranty.

Brand

UTL

Key Features

High speed and high performance micro-controller

High speed microcontroller increases the performance of the system. UTL`s Solar Management Unit (SMU) is embed with a high speed microcontroller which provide ability to perform its task more reliably and efficiently.erational life

UTL`s Solar Management Unit (SMU) is highly reliable and it has longer operational life. It can be operated in extreme environment conditions. It can be operated at temperature range that lies in 0°C to 60°C.

Prioritize Solar Power over Grid Power

SMU ensures priority usage of Solar Power over Grid Power to reduce Grid consumption. In Daytime condition, the system will give priority to Solar Power and use Grid Power only when the Solar Power is insufficient to sustain the load requirement. When battery gets fully charged during daytime, the SMU will automatically cut-off the Grid Power from the system and load will run through the home inverter.

Increase the battery lifetime

SMU utilizes four stage battery charging algorithm that enhances the battery life. In Bulk stage SMU feeds the battery installed to it a constant boost charging current until its voltage reaches 14.4V and the float current (which is very close to zero), then in absorption stage it maintains this voltage above 14.2V for 3 hrs. Thus reducing the float current (flowing for the longest period during the entire process) to zero, ultimately resulting in much enhanced battery life keeping it fully charged simultaneously.

Automatic/ Manual operation through a switch

The system can work as a domestic inverter and a solar inverter automatically or manually through a switch except in night condition. In night condition, first it will harvests the stored battery energy then it will work as normal domestic inverter.

Inbuilt protection to avoid battery undercharge and over-charge.

UTL`s SMU has the capability to charge a battery which goes in deep discharge condition. It can charge the battery if the battery voltage during discharge reaches up to 8V per battery. It uses four stages to charge the battery i.e. Boost, Absorption, Float and Equalization. This feature protects the battery for being over charged.

Very Low Consumption in Idle State

UTL`s SMU have very low idle consumption. In idle state it consumes less than 20mA current which makes it more efficient than any other SMU.

Electronic protection

Over charging-voltage
Over charging-current
Under voltage
Battery reverse polarity protection
Solar reverse polarity protection
Reverse current flow at night from battery to solar array
Over temperature

Specification

 

Particulars Description
General
SMU Capacity SMU1224/40
Operating Temperature 0°C to 50°C
Storage Temperature -20° C to 60°C
Battery Type Tubular/SMF, Battery 12V/24V
Battery Capacity AH 100AH – 180AH
Battery charging regulation method Bulk, Absorption, Float, Equalise
Electrical
Nominal System Voltage 12/24 DC
Charging Current (Solar) 20A-40A
Charge Controller Efficiency >95%
Idle Consumption <20mA
Operating Solar Input Voltage (VOC) 22.5V/45V
Max. Solar Input Voltage (VOC) 25A/45V
Min Solar Input Voltage (VOC) 15V/30V ± 2%
Solar Panel Recovery Voltage 17V/31V ± 2%
Max. Solar Current 40A
Efficiency >95%
Battery Set Point @25 °C
Absorption voltage Tubular Battery 14.2V/28.4V±2%
Absorption voltage SMF Battery 13.7V/27.4V±2%
Absorption Duration 3hr
Float Voltage Tubular Battery 14V/28±2%
Float Voltage SMF Battery 13.7V/27.0V±2%
Bulk Voltage Tubular Battery 14.6V/29.2V±2%
Equalise Voltage 14.9/29.8V±2%
Equalise Duration 3hr
Equalise Calendar 28days
Mains reconnect when Solar not Present At any Battery Voltage
Mains reconnect when insufficient solar power ≤ 11.8V/23.6V ± 2%
Mains disconnect when sufficient solar power for Tubular ≥ 13.8V/27.6V ± 2%
Mains disconnect when sufficient solar power for SMF 13.7V/27.4V ± 2%
Physical
Fixing Wall Mounted
Weight 1.5Kg
Ingress Protection IP-20
Dimension 228X152X76 mm

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