Samlex MSK-20A 20 Amp PWM Solar Charge Controller 12V/24V

The Samlex MSK-20A is a 3-stage intelligent PWM solar charge controller designed for reliable battery charging in 12V or 24V systems. This microcontroller-based unit provides digital accuracy and fully automatic operation, making it ideal for off-grid solar installations, RVs, marine applications, and portable power systems.

Key Features:

• 3-stage intelligent PWM charging technology for optimal battery health and longevity
• Automatic battery voltage detection (12V or 24V)
• 20 amp charging capacity with full output from -35°C to +50°C (-31°F to 122°F)
• Comprehensive electronic protections: overheating, overcharging, over-discharge, overload, and short circuit
• Reverse polarity protection for any combination of solar panel and battery connections
• Compatible with optional MSK-TS external temperature sensor for temperature-compensated charging
• Compact design: 6.28" x 3.2" x 1.89" and weighs just 0.66 lbs

Ideal Applications:

• Recreational vehicles and service vehicles
• Off-grid solar power systems
• Portable solar charging kits
• Boats and marine crafts
• Field work stations and mobile offices
• Telecommunications equipment

The MSK-20A's series-type PWM controller design ensures efficient charging while protecting your batteries from damage. The automatic voltage detection and wide operating temperature range make it a versatile solution for diverse solar charging applications.