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UTL Solar Management Unit (SMU)-12/24v

Technical Details :-

SMU CapacitySMU1224/40
Operating Temperature0°C to 50°C
Storage Temperature-20° C to 60°C
Battery TypeTubular/SMF, Battery 12V/24V
Battery Capacity AH100AH – 180AH
Battery charging regulation methodBulk, Absorption, Float, Equalise
Nominal System Voltage12/24 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 Voltage17V/31V ± 2%
Max. Solar Current40A
Battery Set Point @25 °C
Absorption voltage Tubular Battery14.2V/28.4V±2%
Absorption voltage SMF Battery13.7V/27.4V±2%
Absorption Duration3hr
Float Voltage Tubular Battery14V/28±2%
Float Voltage SMF Battery13.7V/27.0V±2%
Bulk Voltage Tubular Battery14.6V/29.2V±2%
Equalise Voltage14.9/29.8V±2%
Equalise Duration3hr
Equalise Calendar28days
Mains reconnect when Solar not PresentAt 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 SMF13.7V/27.4V ± 2%
FixingWall Mounted
Ingress ProtectionIP-20
Dimension228X152X76 mm

Special Features

High Speed with high Performance

UTL`s solar management unit (SMU) is embed with a high speed microcontroller which increases the performance of the solar system. Solar management unit provide ability to perform its task more reliably and efficiently.

High Reliability with Longer Operational Life

It is highly reliable and it has longer operational life. Solar management unit can be operated in extreme environment conditions and 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 energy over government electricity (grid) to reduce grid consumption. In daytime condition, the system will give priority to solar energy and use grid power only when the solar power is insufficient to sustain the load requirement.

Increase the battery lifetime

SMU utilizes four stage battery charging algorithm that enhances the battery lifespan. 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, then in absorption stage it maintains this voltage above 14.2V for 3 hrs.

Automatic/ Manual Operation

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

SMU has the capability to charge a solar battery which goes in deep discharge condition. It can charge the battery if the battery voltage during discharge reaches up to 8V per battery. Solar management unit 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

It have very low idle consumption, in idle state it consumes less than 20mA current which makes it more efficient than any other solar management unit.

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
  • Solar Low Voltage

Display Parameter

  • Battery – Voltage, Current, Type
  • Solar- Voltage, Current
  • Mode Selection
  • Solar Status – High, Low, Overload, Overheat.
  • Saving kWh
  • Mains Present – Low, High, Absent

Maximum PV Current

Special Features

There are some special features that given below.

  • High Speed and High Performance micro-controller
  • High reliability with longer operational life
  • Inbuilt protection to avoid battery undercharge and over-charge
  • Inbuilt PWM Technology Charge Controller
  • Automatic voltage selection for 12V or 24V
  • Solar Prioritization
  • Compact design with wall mounting
  • Eco friendly
BRAND:UTL (Fujiyama Power Systems Pvt Ltd)
SALES ENQUIRE CONTACT          : 8762607476
SERVICE CENTRE NAME                                : SL ELECTRONICS
SERVICE CENTRE CONTACT NUMBER     : 0824 4114138, 7795214858
Toll Free No  (All India Service)                                                        8510 885 885 

MRP : Rs 5000.00

Discounted Price : Rs 4500.00