40A MPPT Solar Charge Controller

40A MPPT Solar Charge Controller

£187.00 (inc. VAT)

High Efficiency 40A MPPT controller to maximise solar charging

In stock.


Product code: 3166

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Efficient and easy to use intelligent 40A controller designed to optimise solar charging to your battery bank and loads. MPPT solar controllers maximise the charging current to batteries by changing their power output to match the output of the solar panel. MPPT controllers therefore outperform conventional PWM solar controllers in terms of efficiency and actual charging current to a battery bank or power to a load making them the preferred solar controller type. MPPT controllers also have a wide solar input voltage range allowing the use of series and parallel configuration to maximise solar input and so providing flexibility in choice of the solar panel type used. This MPPT controller can accept input voltage up to 150V. The maximum combined input solar power allowed for this controller is 520W for a 12V battery system or 1040W for a 24V system. In particular, the 40A MPPT controller will significantly increase efficiency of a solar array or system system where the solar panel voltage is much higher than the battery voltage (e.g. charging a 12V battery with a 36V solar panel). This controller also features advanced communication technology, which offers the user the opportunity to monitor and program parameters for the solar charge controller and load settings using either the MT50 remote Display, optional wifi module (via android app) or even via RS485 to USB via PC/laptop and solar controller software (call for details) Multiple mounting holes for ease of installation
Two year warranty

Ideal for off-grid & remote location High Quality Great Value Smart Battery Charging High efficiency solar charging
  • The most advanced MPPT technology to ensure high efficiency (>95%) of your solar system
  • Fully automated operation and auto 12/24V selection
  • 3 pairs of terminals (solar panel, battery, load) for wires up to 25mm
  • Maximum solar panel input voltage 150V allows for flexible panel configuration
  • Maximum solar panel power 520W (12V) / 1040W (24V)
  • Current limiting function (40A) - allows higher solar panel input (up to 3 x max solar panel power) when compensating for winter conditions
  • LED lights indicate the charging status and battery condition
  • Temperature sensor for automatic compensation (-3mV/C/2V)
  • Comprehensive electronic protection features
  • Communication port : RS485/RJ45 interface to provide montoring and basic programming of the controller.

Maximum solar panel voltage: 150V
Maximum solar panel power: 520W (12V) / 1040W (24V)
Battery Voltage: Fully automated operation 12/24V selection
Communication port: RS485/RJ45 interface
Grounding: negative common ground
Current limiting function: 40A
Self-consumption: <60mA (12V), <30mA (24V)
Working temperature: -35C to +55C
Size: 302 x 182 x 63 mm
Weight: 2.9 Kg

Multiple mounting holes for ease of installation
Two year warranty

  • Caravans and motorhomes
  • Boats
  • Off Grid sites and remote power applications such as CCTV and lighting
  • Glamping pods and tents


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