81 POWER CONVERSION mastervolt.com SCM25 MPPT SCM60 MPPT-MB SCM20 PWM SCM40 PWM Part # 131902500 131906000 131822000 131824000 General Specifications Display/read-out backlit LCD with PV power, load power, battery voltage, charge current, warnings, battery state of charge, battery setting Dimensions, HxWxD 5.3" x 7.5" x 3.0" 135 x 190 x 75 mm 15.7" x 6.6" x 4.1" 398 x 168 x 104 mm 3.9" x 7.4" x 2.1" 98 x 189 x 2.1 mm 3.9" x 7.4" x 2.1" 98 x 189 x 2.1 mm Weight 2.9 lb / 1.3 kg 12.1 lb / 5.5 kg 1.1 lb / 0.5 kg 1.1 lb / 0.5 kg Alarms buzzer via MasterBus n.a. n.a. Cooling passive passive passive passive Protection degree IP23 IP23 IP23 IP23 Grounding (-) terminal (-) terminal common negative grounding common negative grounding Technical Specifications Technology MPPT (Max. Power Point Tracker) PWM (Pulse Width Modulation) Temperature range (ambient temp.) -4°F to 131°F (-20°C to 55°C) 4 °F to 122 °F, derating power > 104 °F (-20 °C to 50 °C, derating power > 40 °C) Cable size max. 10 mm2 Litz wire max. 35 mm2 Litz wire max. 16 mm2 Litz wire max. 16 mm2 Litz wire Protections over temperature, overload, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients MasterBus communication no yes no no Relative humidity 95% non-condensing 95% non-condensing 95% non-condensing 95% non-condensing Battery Charger Specifications System voltage (battery) 12/24V auto select 12/24/48V auto select 12/24V auto select 12/24V auto select Battery types AGM, Gel, flooded, Lithium Ion (LiFePO4) AGM, Gel, flooded, Lithium Ion (LiFePO4) AGM, Gel, flooded, AGM, Gel, flooded, Battery temperature sensor yes yes optional optional Lithium Ion protection via Multipurpose Contact Output, Part # 77030500 yes, via MasterBus connection n.a. n.a. Max. charge current at 104°F (40°C) 25A 60A 20A 40A Switchable output (max. current) 25A via MasterBus 20A 40A Energy consumption (night) 5 mA < 1 mA < 7 mA < 7 mA Solar Input (DC) Specifications Nom. PV current at 104°F (40°C) 18A 50A 20A 40A PV start voltage (12V/24V) 15V / 27V n.a. n.a. n.a. PV start voltage (12V/24V/48V) n.a. 15V / 27V / 51V n.a. n.a. Nom. PV voltage (12V) 15-66V 13.2-115V n.a. n.a. Nom. PV voltage (24V) 30-66V 26.4-115V n.a. n.a. Nom. PV voltage (48V) n.a. 52.8-115V n.a. n.a. Max. PV voltage (Tmin) 75V 145V n.a. n.a. Max. PV power (12V) 360 Wp 900 Wp 360 Wp 720 Wp Max. PV power (24V) 720 Wp 1800 Wp 720 Wp 1440 Wp Max. PV power (48V) n.a. 3600 Wp n.a. n.a. Max. efficiency > 98% > 98% n.a. n.a. Static MPP efficiency 99.9% 99.9% n.a. n.a. Options Temperature Sensors 41500500, 6M 41500800, 15M included option included option option option option option Solar ChargeMaster Specifications
RkJQdWJsaXNoZXIy MjgzMDI=