Solar ChargeMaster charge controller SCM40 PWM 131824000

Solar cells provide power from daylight. This renewable energy source boosts your independence and also helps keep your battery in optimal condition.

Efficient, reliable and safe
The Mastervolt Solar ChargeMaster charge regulators maximise yield from the often very irregular supply of sunlight. Robust power electronics convert the energy from the solar panels, taking the charge status of the batteries into account. Mastervolt’s solar charge regulators are suitable for energy systems with system voltages of 12V, 24V and 48V (SCM60 MPPTMB), and charge any battery type, including Mastervolt Lithium Ion (MLI) batteries. They ensure an optimal and efficient charge cycle and are highly reliable. The 3-step+ charging method guarantees an extra-long lifespan for your batteries. A MasterBus connection is available for optimal integration within the energy system.

Versatile and Flexible
Mastervolt Solar charge regulators can be used flexibly to complement your energy system, or in places where no electricity is available, such as on a boat or camping spot. They are also ideal for professional applications at remote petrol stations, telecom relay stations or offshore units.

The Solar ChargeMaster series comprises two charge regulators based on PWM (Pulse Width Modulation) technology and two models that are equipped with MPPT (Maximum Power Point Tracker) technology. The PWM charge regulators offer an excellent price/ performance ratio for small and medium systems. Larger systems are better suited to the SCM25 MPPT and SCM60 MPPT-MB regulators, with an integrated Maximum Power Point Tracker.

Specifications battery charger
System voltage (battery)	12/24 V auto select
Nominal charge current	40 A
Battery types	AGM, Gel, flooded
Battery temperature sensor	optional, product code 41500500
Switchable output (max. current)	40 A
Energy consumption (night)	< 7 mA
Specifications solar input (DC)
Panel type (12 V system)	36 cells
Panel type (24 V system)	72 cells
Max. PV current (Impp)	40 A
Recommended PV power (12 V system)	720 Wp
Recommended PV power (24 V system)	1440 Wp
General specifications
Cooling	passive
Display/read-out	backlit LCD with PV power, load power, battery voltage, charge current, warnings, battery state of charge, battery setting
Grounding	common negative grounding
Protection degree	IP23
Dimensions, hxwxd	98 x 189 x 53 mm 3.9 x 7.4 x 2.1 inch
Weight	0.5 kg 1.1 lb
Technical specifications
Technology	PWM (Pulse Width Modulation)
Temperature range (ambient temp.)	-20 °C to 50 °C, derating power > 40 °C -4 °F to 122 °F
Cable size	max. 16 mm²
Protections	over temperature, over load, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients
Relative humidity	95 % non-condensing