Solar Charge Controller - 40 Amp

 We currently stock 2 versions of our Solar Charge Controller , a 40 amp version and a 100 amp version.

For up to 4 x 385w Solar panels you will need our 40amp  Solar Charge Controller and for up to 10 x 385w Solar Panels you will need our 100amp Solar Charge Controller.

If your Solar PANELS are lower wattage then if you look at the label on the rear of your Solar PANEL the specifications will give you an AMP rating, simply multiply this AMP rating by your number of panels and then choose the next higher rated Auto Solar Charge Controller, so if your AMP rating is 30amps you will need our 40Amp Solar Charge Controller , if your AMP rating is 50,60 or 80 or even 90amps then you need our 100Amp olar Charge Controller.

A PWM (pulse width modulation) controller can be thought of as an (electronic) switch between the solar panels and the battery: The switch is ON when the charger mode is in bulk charge mode. The switch is “flicked” ON and OFF as needed (pulse width modulated) to hold the battery voltage at the absorption voltage. This stops sulfation in batteries and helps them last longer maintain more output power than if a non PWM Solar Controller is used.

Specifications:

1) Connect the positive and negative wires from the battery to the Controller

2) Connect the positive and negative wires from the load to the controller

3) Connect the Solar PANEL wires to the Controller

4) Please ensure you do not reverse the polarity as doing so will void your warranty

5) Has 2 USB ports so very handy for charging Phones etc

Buy your Solar Charge Controller - 40 amp from CarbonFreeHeat Ireland , your Irish free delivery store**