Mastervolt Solar ChargeMaster Charge Controller - SCM-20A PWM

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.

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 (maximum current): 20 A
• Energy consumption (night):

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 (H x W x D): 98 mm (3.9") x 189 mm (7.4") x 53 mm (2.1")
• Weight: 0.5 kg

Technical Specifications

• Technology: PWM (Pulse Width Modulation)
• Temperature range (ambient temperature): -20°C to 50°C, derating power >40°C/-4°F to 122°F
• Cable size: Maximum 16 mm²
• Protections: Over temperature, over load, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity and HV transients
• Relative humidity: 95% non-condensing

Optional Extra

Temperature sensor 6m MV41500500

Temperature sensor 15m MV41500800

Technical Files

User Manual
Brochures