{"id":41229,"date":"2020-08-10T06:19:35","date_gmt":"2020-08-10T06:19:35","guid":{"rendered":"https:\/\/3.6.187.192\/utl\/?page_id=41229"},"modified":"2026-07-25T16:29:08","modified_gmt":"2026-07-25T10:59:08","slug":"solar-management-unit","status":"publish","type":"page","link":"https:\/\/www.upsinverter.com\/utl\/solar-management-unit\/","title":{"rendered":"Solar Management Unit"},"content":{"rendered":"
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Solar Management Unit (SMU)<\/h2>\n

UTL introducing a brand new and unique solar device name “Solar Management Unit”. The SMU (Solar Management Unit) is a unique device developed in India that converts your standard inverter into a solar inverter. <\/b>SMU ensures priority usage of solar power to reduce grid (government electricity) consumption. The same SMU\u00a0 works with both 12V & 24V inverters.<\/p>\n

\"UTL
UTL SMU Hybrid solar charge controller<\/figcaption><\/figure>\n

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.<\/p>\n

When sufficient sunlight is available, the solar charge controller charges the battery using solar energy as the first priority.<\/b> when the battery is fully charged, it powers the load using solar energy and automatically switches the load to grid power in the evening.The Solar Management Unit gives priority to solar power. In this SMU, you get the in-built PWM Solar Charge Controller, which improves solar panel efficiency and extends battery life..<\/p>\n

The best part of UTL SMU (solar management unit) is that it runs on one inverter with one battery or two batteries. It features automatic battery selection. It is available in 12V and 24V variants with a 1-year warranty.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Price of Solar Management Unit (SMU)<\/h2>\n

Price of solar management unit (SMU) is very affordable and anyone can purchase it.The price of the SMU, inclusive of all taxes, is given below.<\/p>\n\n\n\n\n
SMU Rating<\/strong><\/td>\nMRP ( Inclusive of all taxes )<\/strong><\/td>\nDiscounted Price<\/strong><\/td>\n<\/tr>\n
1224\/40<\/td>\nRs. 8,720.00<\/del><\/td>\nRs. 5,624.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Technical Details of Solar Management Unit (SMU)<\/h2>\n

UTL has included several unique and user-friendly features in the SMU. All technical details are given below.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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Particulars<\/strong><\/p>\n<\/td>\n

Description<\/strong><\/td>\n<\/tr>\n
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General<\/strong><\/p>\n<\/td>\n<\/tr>\n

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SMU Capacity<\/p>\n<\/td>\n

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SMU1224\/40<\/p>\n<\/td>\n<\/tr>\n

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Operating Temperature<\/p>\n<\/td>\n

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0\u00b0C to 50\u00b0C<\/p>\n<\/td>\n<\/tr>\n

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Storage Temperature<\/p>\n<\/td>\n

-20\u00b0C to 60\u00b0C<\/td>\n<\/tr>\n
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Battery Type<\/p>\n<\/td>\n

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Tubular\/SMF, Battery 12V\/24V<\/p>\n<\/td>\n<\/tr>\n

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Battery Capacity AH<\/p>\n<\/td>\n

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100AH \u2013 180AH<\/p>\n<\/td>\n<\/tr>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Battery Charging Regulation Method<\/td>\n\n

Bulk, Absorption, Float, Equalise<\/p>\n<\/td>\n<\/tr>\n

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Electrical<\/strong><\/p>\n<\/td>\n<\/tr>\n

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Nominal System Voltage<\/p>\n<\/td>\n

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12\/24 DC<\/p>\n<\/td>\n<\/tr>\n

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Charging Current (Solar)<\/p>\n<\/td>\n

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20A-40A<\/p>\n<\/td>\n<\/tr>\n

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Charge Controller Efficiency<\/p>\n<\/td>\n

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>95%<\/p>\n<\/td>\n<\/tr>\n

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Idle Consumption<\/p>\n<\/td>\n

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<20mA<\/p>\n<\/td>\n<\/tr>\n

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Operating Solar Input Voltage (VOC)<\/p>\n<\/td>\n

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22.5V\/45V<\/p>\n<\/td>\n<\/tr>\n

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Max. Solar Input Voltage (VOC)<\/p>\n<\/td>\n

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25A\/45V<\/p>\n<\/td>\n<\/tr>\n

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Min Solar Input Voltage (VOC)<\/p>\n<\/td>\n

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15V\/30V \u00b1 2%<\/p>\n<\/td>\n<\/tr>\n

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Solar Panel Recovery Voltage<\/p>\n<\/td>\n

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17V\/31V \u00b1 2%<\/p>\n<\/td>\n<\/tr>\n

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Max. Solar Current<\/p>\n<\/td>\n

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40A<\/p>\n<\/td>\n<\/tr>\n

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Efficiency<\/p>\n<\/td>\n

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>95%<\/p>\n<\/td>\n<\/tr>\n

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Battery Set Point @25<\/strong> \u00b0C<\/strong><\/p>\n<\/td>\n<\/tr>\n

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Absorption voltage Tubular Battery<\/p>\n<\/td>\n

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14.2V\/28.4V\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Absorption voltage SMF Battery<\/p>\n<\/td>\n

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13.7V\/27.4V\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Absorption Duration<\/p>\n<\/td>\n

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3hr<\/p>\n<\/td>\n<\/tr>\n

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Float Voltage Tubular Battery<\/p>\n<\/td>\n

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14V\/28\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Float Voltage SMF Battery<\/p>\n<\/td>\n

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13.7V\/27.0V\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Bulk Voltage Tubular Battery<\/p>\n<\/td>\n

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14.6V\/29.2V\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Equalise Voltage<\/p>\n<\/td>\n

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14.9\/29.8V\u00b12%<\/p>\n<\/td>\n<\/tr>\n

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Equalise Duration<\/p>\n<\/td>\n

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3hr<\/p>\n<\/td>\n<\/tr>\n

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Equalise Calendar<\/p>\n<\/td>\n

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28days<\/p>\n<\/td>\n<\/tr>\n

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Mains reconnect when Solar not Present<\/p>\n<\/td>\n

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At any Battery Voltage<\/p>\n<\/td>\n<\/tr>\n

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Mains reconnect \u00a0when insufficient solar power<\/p>\n<\/td>\n

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\u2264 11.8V\/23.6V \u00b1 2%<\/p>\n<\/td>\n<\/tr>\n

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Mains disconnect \u00a0when sufficient solar power for Tubular<\/p>\n<\/td>\n

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\u2265 13.8V\/27.6V \u00b1 2%<\/p>\n<\/td>\n<\/tr>\n

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Mains disconnect when sufficient solar power for SMF<\/p>\n<\/td>\n

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13.7V\/27.4V \u00b1 2%<\/p>\n<\/td>\n<\/tr>\n

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Physical<\/strong><\/p>\n<\/td>\n<\/tr>\n

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Fixing<\/p>\n<\/td>\n

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Wall Mounted<\/p>\n<\/td>\n<\/tr>\n

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Weight<\/p>\n<\/td>\n

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1.5Kg<\/p>\n<\/td>\n<\/tr>\n

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Ingress Protection<\/p>\n<\/td>\n

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IP-20<\/p>\n<\/td>\n<\/tr>\n

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Dimension<\/p>\n<\/td>\n

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228X152X76 mm<\/p>\n<\/td>\n<\/tr>\n

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Rate<\/strong><\/p>\n<\/td>\n<\/tr>\n

Discounted Price ( Inclusive of all Taxes )<\/b><\/strong><\/td>\n\n

Rs. 5,624.00<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Special<\/strong> Features<\/h2>\n

High Speed with high Performance<\/strong><\/p>\n

UTL’s Solar Management Unit (SMU) is equipped with a high-speed microcontroller which increases the performance of the solar system. The Solar Management Unit provides the ability to perform its task more reliably and efficiently.<\/p>\n

High Reliability with Longer Operational Life<\/strong><\/p>\n

It is highly reliable and\u00a0 has longer operational life. Solar management unit can be operated in extreme environment conditions and can be operated within temperature range of\u00a0 0\u00b0C to 60\u00b0C.<\/p>\n

Prioritize Solar Power over Grid Power<\/strong><\/p>\n

SMU ensures priority usage of solar energy over government electricity (grid) to reduce grid consumption. During the daytime, the system will give priority to solar energy and use grid power only when the solar power is insufficient to sustain the load requirement.<\/p>\n

Increase\u00a0 battery life<\/strong><\/p>\n

SMU utilizes four stage battery charging algorithm that enhances the battery lifespan. In bulk stage SMU supplies the connected battery with 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.<\/p>\n

Automatic\/ Manual Operation<\/strong><\/p>\n

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

Inbuilt Protection to Avoid Battery Undercharge and Over-charge<\/strong><\/p>\n

SMU has the capability to charge a solar battery<\/a> 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 from overcharging.<\/p>\n

Very Low Consumption in Idle State<\/strong><\/p>\n

It has very low idle power consumption, in idle state it consumes less than 20mA current which makes it more efficient than any other solar management unit.<\/p>\n

Electronic protection<\/strong><\/p>\n