Mastervolt 131822000 SCM20 PWM Solar Charge Regulator
This solar charge regulator based on PWM technology is a great solution to charge your batteries with solar energy. Suitable for both 36 cells panels (in 12 V systems) and 72 cells panels (in 24 V systems). Its protection against water spray, suitability for high ambient temperature and compatibility with negative grounding, make it the perfect solar regulator for marine and mobile environments. Optionally, a temperature sensor is available.
Safe, user friendly, and flexible
The SCM20 PWM is suitable for all types of lead-acid batteries in both 12 V and 24 V. The device features a large display and switchable output with evening / night lighting function.
Mastervolt SCM20 PWM Solar Charge Regulator Manual:
Specifications
| Specifications battery charger | |
| System voltage (battery) | 12/24 V auto select |
| Nominal charge current | 20 A |
| Battery types | AGM, Gel, flooded |
| Battery temperature sensor | optional, product code 41500500 |
| Switchable output (max. current) | 20 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) | 20 A |
| Recommended PV power (12 V system) | 360 Wp |
| Recommended PV power (24 V system) | 720 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 |