Collection: PWM Charge Controllers

Morningstar's EcoPulse™ is a pulse width modulation (PWM) solar charge controller within the Morningstar Essential Series™ which provides essential off-grid battery regulation functions for solar PV systems.

These tropicalised 15 & 30A controllers provide longer battery life and improved system performance. LED's indicate battery status and faults. Digital metering shows voltage & current plus 9 different controller status parameters. Automatic battery equalisation or can be used with sealed and gel batteries. Includes a manual PV and load disconnect button. Versions for 12V, 24V or 48V systems.

These low-cost controllers are ideal for small lighting systems. High reliability with built in electronic fuses. Circuit boards are coated for protection against humidity & insects. LED's indicate battery level and system status. 12V.

This is the ideal controller for one-module systems. Fully encapsulated in epoxy potting, they can be mounted in battery enclosures and are weatherproof. Connection via 200mm leads.

These are simple controllers which mount directly to the solar module junction box and eliminate the need for additional controller housing. Fully encapsulated and IP65 outdoor rated, they are approved for hazardous locations and high temperatures (up to 70°C). Connection is via flying leads. Use with sealed or vented batteries is field selectable. 12V. Bi-colour LED indicates charging, operation & faults.

These are ideal controllers for solar powered lighting controls. Fully encapsulated. Connection is via marine rated terminals. Use with sealed or vented batteries is field selectable. Switches lights for 2 to 10 hours on, for on all night or after dusk and before dawn. Versions for use in either 12V or 24V systems, includes automatic low battery voltage disconnect (L). LED's indicate charging and load disconnect condition.

These are the ideal controller for small professional and consumer systems. Fully encapsulated, they are approved for hazardous locations.

For use with systems using two separate batteries eg boats and motorhomes. Includes remote meter to show system status and errors.

These powerful tropicalised three-function PWM controllers provide reliable solar battery charging, load control or diversion regulation to divert excess power to a dump load for use in solar, wind or hydroelectric systems. (Two or more controllers may be used to provide multiple functions). Large heat sink enables operation at up to 45°C without de-rating. 3 LED's indicate battery status, alarms and faults. Optional LCD digital backlit display (included with -M version) provides system & controller information: battery voltage; current; temperature; amp-hours and error mode. Versions mount either on face of the controller or remotely. For use in either 12, 24 or 48V systems. Fully adjustable with DIP switches. RS232 communication for custom settings, data logging, remote monitoring/control. Reverse polarity, short circuit, over-current, high temperature and over-voltage protection. Operation from - 40 to+ 45°C. Terminals take up to 35sqmm cables.

A range of PWM solar charge regulators rated from 10-30A, ideal for any small to medium size system which adapts automatically for use in either 12 or 24 V systems. Includes automatic low voltage disconnection and a manual load switch. Protection features include an automatically re-settable electronic fuse for maintenance free operation. Includes large self explanatory LCD display showing voltage, charge & discharge current.

PWM solar charge controllers using the latest charging technologies combined with state of charge determination to enable optimal battery charging. A large display informs the user about all operating modes with the aid of symbols. State of charge is shown as a level meter and data such as voltage, current and state of charge can be displayed digitally as figures on the display.

State-of-the-art dual battery PWM charge controller that is ideal for use in leisure applications such as boats and motor homes

Simple high performance PWM solar charge controllers with modern design and a convenient LED display.

Easy to use PWM charge controller ideal for small systems with up to 10A charge/load current.

The Steca Tarom sets new standards in this power class. A graphic display informs the user about all important system data and enables configuration and adjustment of the controller to the specific requirements of the individual system for optimal control and battery protection.

Integrated data logger stores all important system data which can then be read by the minute via an open Steca UART interface.
Two additional switching contacts can be freely configured as a timer, a night light function, to start generators or as surplus management. Up to six devices can be connected in parallel and communicate with one another via the StecaLink bus.