Morningstar Solar Charge Regulators
Tristar 60M Prostar 30 30M Relay Driver

The Sunsaver is one of the most advanced small solar regulators available today. Starting with the SR110TL through to the SR331TL the regulators are priced competitively, yet they include standard features and have capabilities not found in other small regulators.
These include a full and continuous rating at higher ambient temperatures. Each unit has reverse polarity protection and come with high quality surface mounted components and they boast the PWM pulse charging and have adjustment for either sealed or conventional wet lead acid batteries.
By using highly advanced technology the Prostar range including the SR250 and SR500 solar regulators set new standards for reliability. With this advanced technology the expected failure rate will be less than 1 per 1000 units over 5 years.
The PWM pulse charging has also been further optimised to help improve battery life and improve the system performance.
Both the SR50 and SR500 models can be selected for charging either gel, sealed or conventional wet lead acid batteries and the added benefit of giving an equalisation charge for the flooded system an LCD display is available. This shows the charge current from the solar panel and gives an indication of charge level in the battery.
Morningstar Product Catalogue PDF
| MORNINGSTAR – Solar Regulator | ||
| Type | Description | Display |
| SR75TL | ‘Sun Guard’ – 75Wp-4.5A – 12V with Discharge and Overcharge protection – temperature compensation | LED |
| SR110TL | ‘Sun Saver 6’ – 110Wp-6A – 12V with Discharge and Overcharge protection – temperature compensation | LED |
| SR165TL | ‘Sun Saver 10’ – 170Wp-10A – 12V with Discharge and Overcharge protection – temperature compensation | LED |
| SR331TL | ‘Sun Saver 20’ – 331Wp-20A – 12V with Discharge and Overcharge protection – temperature compensation | LED |
| SR250TL | ‘Pro Star 15’– 250Wp-15A for 12V/24V Micro Processor Controlled / LED / temperature compensation | LED |
| SR250LCD | ‘Pro Star 15M’– 250Wp-15A for 12V/24V Micro Processor Controlled / LCD display / temperature compensation | LCD |
| SR500TL | ‘Pro Star 30’– 500Wp-30A for 12V/24V Micro Processor Controlled / LED / temperature compensation | LED |
| SR500LCD | ‘Pro Star 30M’ – 500Wp-30A for 12V/24V Micro Processor Controlled / LCD display / temperature compensation | LCD |
| SR740TL | ‘Tri Star 45M’ – 740Wp-45A for 12v / 24v / 48v micro processor controlled / temperature compensation | LED/LCD |
| SR990TL | ‘Tri Star 60M’ – 990Wp-60A for 12v / 24v / 48v micro processor controlled / temperature compensation | LED/LCD |
| TS/DISP | Display meter for ‘Tri Star 45M &; 60M’ | |
| for more information contact: info@solenttech.co.uk | ||
Solar regulators are designed to protect batteries from over charging and discharging, they are all fully automatic and have easy to read LED / LCD displays. By having a regulator in the solar installation the batteries life expectancy will increase dramatically.
SR60UL
* Battery state-of-charge indicator
* PWM regulation
* Boost & float charging method
* Temperature compensation
* Solid state over-voltage protection
* Reverse polarity protection
SR135TL
* Overcharge & deep discharge protection
* PWM regulation
* Three stage charging method
* Temperature compensation
* Solid state circuit and load protection
* Reverse polarity protection
* Battery state of charge display - 3 LED
* Automatic 12 / 24 volt detection
* Overload, load disconnect and load short circuit protection
Technical Data
| Type | SR60UL | SR135TL |
| Max current | 4A | 8A |
| Voltage | 12V | 12/24V |
| Dimensions L x Wx H (mm) | 27 x 57 x 71 | 32 x 80 x 100 |
| Power consumption | < 4 mA | < 4 mA |
Morningstar Regulators SR170TL/LCD & SR340TL/LCD
These sophisticated solar charge regulators have been designed using a special microcontroller. This microcontroller together with a smart electronic circuit provides high-efficiency charging technology combined with a 50% reduction of electronic components (compared to conventional regulators), this means excellent battery charging is now available at reasonable cost and with outstanding reliability even with tough environmental conditions.
The temperature compensated three stage PWM charging method (boost / absorption / equalization / float) provides an increase in battery life expectancy compared to simple on/off regulators. The regulator also adjusts to battery type, battery capacity and ambient temperature to increase battery life.
Extra features on the SR170LCD & SR340LCD are LCD displays providing important information about the solar system, battery state of charge, load current and solar charge current. A special feature is the energy management control output, loads like a fridge can make use of excess solar energy if the energy management control output is connected, this gives much higher utilization of the energy provided by the solar system and reduces power consumption / lost energy.
Features for both controllers -
Battery state of charge display
Charge status display
Load current display
Installation fault status display
Slide cover to hide terminals
PWM regulation
Three stage charging method
Self-adapting charge algorithm
Automatic 12/24Volt detector
Intergrated temperature compensation
Solid-state circuit and load protection
Reverse polarity protection
Technical Data
| Type | SR170TL / LCD | SR340TL / LCD |
| Max current | 10A | 20A |
| Voltage | 12/24V | 12/24V |
| Dimensions L x Wx H (mm) | 34 x 216 x 133 | 34 x 216 x 133 |
| Power consumption | < 4 mA | < 4 mA |
Morningstar Charge Regulators - SR60ZB & SR300ZB
Solar Regulators for 2 Battery Circuits SR60ZB & SR00ZB
Both regulators have the following features -
- Overcharge protection
- Reverse current protection
- Discharge protection
- Charge control for two battery systems
With these regulators you have the ability to charge two separate battery circuits, the normal set-up is to charge the auxiliary batteries first and when these are fully charged the regulator will automatically switch to the engine start battery.
To gain the full benefits of this system the solar panel and batteries need to be sized correctly, incorrect sizing can affect the regulator switching - please contact us to confirm requirements. info@solenttech.co.uk
| Type | Watts Peak | Voltage | Display | |
| SR60ZB | Up to 260Wp | 12V | LCD Display | |
| SR00ZB | Up to 260Wp | 12V | LCD Display |