Morningstar Solar Controllers

Morningstar Solar Charge Controllers for 12V and 24V Systems

Morningstar solar charge controllers regulate how solar panels charge your batteries in caravans, RVs, boats, 4WDs, tiny homes and off-grid installs. This collection covers EcoBoost MPPT controllers, PWM controllers including EcoPulse, SunSaver and SunGuard, SunLight lighting controllers with low voltage disconnect (LVD), and the higher-current TriStar 60 Amp controller. Communication adaptors are also available for system monitoring.

MPPT or PWM: Choosing the Right Morningstar Controller

The Morningstar EcoBoost MPPT series is offered in 20A, 30A and 40A ratings, with or without a meter. MPPT (Maximum Power Point Tracking) controllers convert surplus panel voltage into extra charging current. That makes them a strong choice for larger arrays, or for panels whose operating voltage sits well above battery voltage. You can compare other options in our MPPT solar charge controllers range.

PWM controllers are a simpler, cost-effective option when panel voltage is closely matched to the battery. The EcoPulse PWM series comes in 10A, 20A and 30A ratings, with metered versions for at-a-glance status. SunSaver models are offered in 10A and 20A for 12V and 24V systems. The compact SunGuard 4A PWM controller suits small panels used for maintenance charging. For further choices, browse our wider selection of PWM solar charge controllers.

Morningstar Series at a Glance

• EcoBoost MPPT: 20A, 30A and 40A, with optional meter, for caravans, boats and off-grid setups
• EcoPulse PWM: 10A, 20A and 30A, with optional meter
• SunSaver: 10A and 20A in 12V and 24V versions, with LED or LVD variants
• SunLight: 10A and 20A in 12V and 24V versions with LVD, suited to solar lighting applications
• SunGuard: 4A PWM for small panels and battery maintenance
• TriStar 60 Amp: a higher-capacity controller for larger installations
• Communication: EIA485/RS232 adaptor and Ethernet MeterBus Converter for networked monitoring

Sizing Your Controller

Match the controller to your battery voltage (12V or 24V), then select a current rating that comfortably covers your array's output. Leave headroom for cold, bright conditions, when panels can produce more than their rated output. For a step-by-step walkthrough, read our guide to choosing the right solar charge controller.

Morningstar Controller FAQs

Which Morningstar controller suits a 30 amp or 40 amp MPPT requirement?

The EcoBoost MPPT range is offered in 30A and 40A ratings, with metered versions available. The 20A EcoBoost suits smaller arrays.

What does LVD mean on SunSaver and SunLight models?

LVD stands for low voltage disconnect. It switches off connected loads when battery voltage drops, which helps protect the battery from deep discharge.

Can I monitor a Morningstar controller remotely?

Compatible models can connect to monitoring equipment through the EIA485/RS232 adaptor or the Ethernet MeterBus Converter. Check the product details to confirm compatibility with your model.

Should I choose a metered model?

Metered EcoBoost and EcoPulse versions display charging status on the unit itself. This is handy where you want quick checks without extra accessories.

Choose the Morningstar controller that matches your battery voltage and solar array. You get dependable charge regulation for your caravan, boat or off-grid system. Compare the models above and order the right size for your setup today.