Morningstar SunSaver SS-20L-12V PWM Charge Controller

Product Features

System compatibility

designed for use in smaller systems. Max solar/load current: up to 20a (depending on model; see model comparison chart). Low voltage disconnect included (l models). Constant voltage pwm regulation; 4-stage charging

Unique features

Ideal for use in cloud-connected, networked systems through communications protocols—“speaks” Modbus, and snmp (with optional emc-1).  Tropicalized and hardened for field use with epoxy encapsulation, and marine-rated terminals. Includes wire terminal cover

Rated for use in hazardous locations

Meets ul/CSA requirements for class 1, division 2, groups a-d for oil & gas and other critical environment applications.  The t5 temperature rating for up to 100⁰c/212⁰ f (boiling water)

Extensive protection and diagnostics built-in

built-in extensive electronic protection against surge, short-circuit, over-current, and reverse polarity conditions. Advanced self-diagnostics warn against installation or user errors.  Factory pre-sets mean no required installation settings

Lowest hardware failure rate in the industry, backed by a five-year warranty

Most Morningstar products ever built are still in use, some for over 25 years, thanks to smarter digital design, superior internal engineering, and over-spec components. Advanced thermal engineering eliminates cooling fans which can fail, suck in dirt, shorten component life, and waste precious energy. The high-impact, durable polycarbonate exterior case illustrates industrial-strength build quality.

Technical Specifications