SRNE ML2440: 40A MPPT Power For Growing Solar Setups
Once your array grows past a couple of panels, a 20A controller starts leaving power on the roof. The SRNE ML2440 is a 40A MPPT solar charge controller for 12V and 24V battery banks, handling up to 550W of PV on 12V or 1100W on 24V. It is a solid fit for cabins, RVs, vans, off-grid sheds and small backup systems.
Why You'll Love The SRNE ML2440 Controller
Double the charging current. 40A of charge current lets you run a bigger array and refill batteries faster on short winter days.
Efficient MPPT tracking. Tracking efficiency above 99% and conversion up to 98% squeeze more usable energy out of every panel.
Flexible battery support. Auto 12V/24V detection with lead-acid, lithium-ion and user-defined battery profiles.
Load control built in. A 20A load output with light control, timer and manual modes runs lighting and DC loads automatically.
Your life, with the SRNE ML2440 Controller
Your camper roof now has four panels instead of two. The ML2440 takes it all in stride, filling the house battery by lunchtime so the fridge, lights and fan run all evening. A quick look at the LCD tells you everything is on track.
The SRNE ML2440 Controller in a nutshell
40A MPPT charging
Up to 550W of PV on 12V or 1100W on 24V systems.
100V PV input
Max open circuit voltage of 100V at 25°C for series panel strings.
Silent, fan-free cooling
Natural cooling with complete charge and discharge protection.
Monitoring ready
LCD screen plus RS232/RS485 communication for remote display accessories.
SRNE ML2440 Controller specifications
Electrical
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Model: ML2440
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System voltage: 12V / 24V auto
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Battery voltage range: 9 to 35V
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Battery types: Lead-acid, Li-ion, user defined
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Rated charge current: 40A
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Rated load current: 20A
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Max. PV open circuit voltage: 100V (25°C), 90V (-25°C)
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MPP voltage range: Battery voltage + 2V to 75V
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Max. PV input power: 550W / 12V, 1100W / 24V
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Conversion efficiency: Up to 98%
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MPPT tracking efficiency: Over 99%
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No-load loss: 0.7 to 1.2W
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Temperature compensation: -3mV/°C/2V (default)
General
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Communication: RS232 / RS485
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Display: LCD screen with charging, battery, load and fault indicators
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Dimensions: 9.4 x 6.8 x 2.9 in (238 x 173 x 72.5 mm)
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Weight: 4.4 lb (2 kg)
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Operating temperature: -31 to 113°F (-35 to 45°C)
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Protection degree: IP32
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Altitude: Up to 3,000 m
Let the experts help you find your perfect SRNE ML2440 Controller setup
Planning a bigger array? Send us your panel specs and battery voltage and we will confirm the SRNE ML2440 is the right size, or whether a 48V controller makes more sense.
Email support@kratopower.com or call +1 888-855-7286.
SRNE ML2440 Controller documents and materials
Safety disclaimer: Charge controllers connect to batteries and solar arrays that carry live DC power. Installation should be carried out by a qualified electrician in line with local electrical codes and the manufacturer's manual. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
