Mastervolt Solar ChargeMaster SCM-25 MPPT 131902500

Mastervolt SCM25 MPPT

The SCM25 MPPT is Mastervolt’s smallest MPPT charge regulator and just as powerful as its big brother. With 200 to 700 Wp in solar panels, switchable output and buzzer, this Solar ChargeMaster is very well suited to small and medium systems.
The innovative technology in the Mastervolt MPPT charge regulators increases the efficiency of the solar panels. The SCM25 MPPT charges your batteries up to 30 % faster than PWM regulators – with the same number of panels.

MPPT charge regulator for all solar panels
Besides the traditional 36 and 72-cell panels, the SCM25 MPPT is also ideal for the inexpensive 60-cell panels.

Easy to use, safe and flexible
The SCM25 MPPT is suitable for all battery types, including Mastervolt Lithium Ion. The charging profiles for all types of batteries are pre-programmed and can be selected at the push of a button. The SCM25 MPPT is quiet and equipped with a very user-friendly, clear display. Built-in protection against overload, high/low battery voltage, overheating, short circuits and reverse polarity ensures that safety comes first. Moreover, the SCM25 MPPT has a robust casing and is protected against condensation in conformity with IP23.

Features

• Very high efficiency for faster charging.
• Stable, accurate Mastervolt Maximum Power Point Tracker.
• Up to 30 % faster charging compared with PWM technology.
• Suitable for inexpensive 60-cell panels.
• Capacity for solar panel configurations from 200 to 700 Wp.
• Suitable for all battery types, including Mastervolt Lithium Ion.
• Automatic 12/24 V detection.
• Flexible charging characteristics.
• Battery temperature sensor for long lifespan.
• Large and bright display.
• Secure switchable output.
• Safe operation, audio signal in case of malfunctions.
• Very quiet operation.
• Robust casing, suitable for humid environments (IP23).

Specifications Solar ChargeMaster	SCM-N 20	SCM-N 40	SCM-25
Article number	14662100	14662101	14662102
Product code	131802000	131804000	131902500
General specifications
Display/read-out	LCD display with battery state of charge, status output, battery setting	LCD display with battery state of charge, status output, battery setting	backlit LCD with PV power, load power, battery voltage, charge current, warnings, battery state of charge, battery setting
Dimensions, H x W x D	98 x 140 x 41mm / 3,9 x 5,5 x 1,6 inch	98 x 140 x 41mm / 3,9 x 5,5 x 1,6 inch	135 x 190 x 75mm / 5,3 x 7,5 x 3,0 inch
Weight	0,2kg/0,4lb	0.23kg/0,5lb	1,3kg/2,9lb
Alarms	buzzer	buzzer	buzzer
Cooling	passive	passive	passive
Protection degree	IP20	IP20	IP23
Grounding	(-) terminal	(-) terminal	(-) terminal
Technical specifications
Technology	PWM (Pulse Width Modulation)	PWM (Pulse Width Modulation)	MPPT (Max. Power Point Tracker)
Temperature range (ambient temp.)	-25 °C to 50 °C / 122 °F	-25 °C to 50 °C / 122 °F	-20 °C to 55 °C
Cable size	max. 16mm2 Litz wire	max. 16mm2 Litz wire	max. 10mm2 Litz wire
Protections	over-temperature, overload, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients	over-temperature, overload, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients	over-temperature, overload, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients
MasterBus compatible	no	no	no
Relative humidity	95 % non-condensing	95 % non-condensing	95 % non-condensing
Specifications battery charger
System voltage (battery)	12/24 V auto select	12/24 V auto select	12/24 V auto select
Battery types	AGM, gel, flooded, MLI	AGM, gel, flooded, MLI	AGM, gel, flooded, MLI
Battery temperature sensor	yes	yes	yes
Lithium Ion protection	n.a.	n.a.	via Multipurpose Contact Output
Max. charge current at 40 °C	20A	40A	25A
Switchable output (max. current)	20A	40A	25A
Energy consumption (night)	5mA	4mA	5mA
Solar input (DC) specifications
Nom. PV current at 40°C	20A	20A	18A
PV start voltage 12/24V	12,8V/25,6V	12,8V/25,6V	15V/27V
PV start voltage 12/24/48V	n.a.	n.a.	n.a.
Nom. PV voltage 12V	n.a.	n.a.	15-66V
Nom. PV voltage 24V	n.a.	n.a.	30-66V
Nom. PV voltage 48V	n.a.	n.a.	n.a.
Max. PV voltage (Tmin)	50V	50V	75V
Max. PV power 12V	360Wp	720Wp	360Wp
Max. PV power 24V	720Wp	1440Wp	720Wp
Max. PV power 48V	n.a.	n.a.	n.a.
Max. efficiency	n.a.	n.a.	> 98%
Static MPP efficiency	n.a.	n.a.	99,9%