PWM Solar Management Unit 12V/24V 40A

PWM 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 PWM Technology Charge Controller

Automatic voltage selection for 12V or 24V

Solar Prioritization

Compact design with wall mounting

Eco friendly

PWM Solar Management Unit 12V/24V 40A

PWM Solar Management Unit 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 PWM 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.

General
Model SMU122440 SMU122450
Operating Temperature 0°C to 50°C
Storage Temperature -10°C to 60°C
System Operating Voltage 12V/24V DC
Battery Type Tubular/SMF
Battery Capacity Max. 200AH
Battery Charging Regulation Method 4 Stage PWM (Bulk/Absorption/Float/Equalize)
Max. Solar Panels 12V, 20A: 150W/165W *2 (Parallel) 12V, 25A:150W/165W 3 (Parallel)
24V, 20A:250W/315W/325W*2 (Parallel) 24V, 25A:250W/315W/325W*3 (Parallel)
12V, 40A:150W/165W *4 (Parallel) 12V, 50A:150W/165W *5 (Parallel)
24V, 40A:250W*4, 315W/325W*3, 390W*2 (Parallel) 24V, 50A:250W*6, 315W/325W*5, 390W/400W*4, 425W*4 (Parallel)
Electrical
Nominal Grid Voltage 230V AC 1Φ
Grid Low Cut 90V ± 10V
Grid High Cut 290V ± 10V
Charging Current (Solar) 40A/20A 50A/25A
Charge Controller Efficiency >95%
Idle Consumption <20mA
Max. Solar input Voltage (Voc) 17V-25V (12V Batt.)
31V-49V (24V Batt.)
Min. Solar input voltage (Voc) @ Start-up 15V/30V ± 2%
Solar Panel Recovery Voltage 17V/34V ± 2%
Max. Solar Current 40A By Default 50A By Default
Efficiency >95%
Battery Set Points @ 25°C
Bulk Voltage Tubular Battery 14.6V/29.2V ± 2%
Absorption Voltage Tubular Battery 14.2V/28.4V ± 2%
Float Voltage Tubular Battery 141/28V ± 2%
Bulk Voltage SMF Battery 13.7V/27.4V ± 2%
Float Voltage SMF Battery 13.5V/27.0V ± 2%
Absorption Duration 3Hr
Equalize Voltage 14.9V/29.8V ± 2%
Equalize Duration 3Hr
Equalize calender 28 days
Mains reconnect when Solar not present At any Batt. 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%
Display Parameters
1. Batt. Voltage, Batt. Current, Batt. Type 1. Batt. Voltage, Batt. Current, Batt. Type
2. Solar Voltage, Solar Current 2. Solar Voltage, Solar Current
3. Mode Selection 3. Mode Selection 3. Over Current of SPV: >40A/20A
4. Solar Status: High, Low, Overload, Overheat 4. Solar Status: High, Low, Overload, Overheat
5. Saving-kWh 5. Saving-kWh
6. Mains Present, Low, High, Absent 6. Mains Present, Low, High, Absent
7. Max. PV Current 7. Max. PV Current
8. Over Temperature
Physical
Ingress Protection IP-20
Fixing Wall Mounted
Weight (kg) 1.5 2.33
Dimension (LxWxH) Inch 9 X 6.2 X 3.6 9.6 X 6.9 X 4.9

*Specification are subject to change without prior notice due to constant improvement in design &
technology.