SmartSolar MPPT 250/70-Tr

The ultra-fast MPPT (Maximum Power Point Tracking) technology in this controller optimizes solar energy harvesting. It improves energy production by up to 30% compared to PWM controllers and up to 10% compared to slower MPPT controllers, especially when light intensity varies rapidly, such as under a cloudy sky.

The SmartSolar MPPT 250/70-Tr charge controller delivers exceptional conversion efficiency, exceeding 99%. This high efficiency is achieved without the need for a cooling fan, contributing to its reliability.

Yes, the SmartSolar algorithm is designed to maximize energy harvest even under partial shading. It can detect the optimal maximum power point (MPP), even when multiple power points may exist on the power-voltage curve, thus avoiding getting stuck on a suboptimal local MPP.

The standby current draw of the SmartSolar MPPT 250/70-Tr charge controller is very low, less than 35 mA for a 12 V system and less than 20 mA for a 48 V system.

The controller is designed to operate within a wide temperature range, from -30 to +60 °C (with full nominal power up to 40 °C). It supports 95 % humidity (non-condensing) and can be used up to a maximum altitude of 5000 m (full nominal power up to 2000 m). It is intended for use in unconditioned indoor environments with a pollution degree of PD3.

The dimensions of the Tr model of the SmartSolar MPPT 250/70-Tr are 185 x 250 x 95 mm (height x width x depth). Its weight is 3 kg.

The SmartSolar MPPT 250/70-Tr charge controller can automatically handle battery voltages of 12 V, 24 V, or 48 V. It can also be manually configured for 36 V systems.

The maximum nominal PV power the controller can support depends on the battery voltage:

12 V: 1000 W
24 V: 2000 W
36 V: 3000 W
48 V: 4000 W
If a higher PV power is connected, the controller will limit the input power.

Yes, the SmartSolar MPPT 250/70-Tr charge controller supports synchronized parallel operation. You can synchronize up to 25 units via the VE.Can interface or up to 10 units via Bluetooth.

The controller is equipped with several data communication interfaces:

VE.Can: For wired connection to a Color Control GX, other GX products, a PC, or other devices, and for parallel synchronisation.VE.Direct: For wired connection to a Color Control GX, other GX products, a PC, or other devices.Bluetooth Smart: For configuration, monitoring, updates, and wireless synchronisation via the VictronConnect app.

For more accurate monitoring of battery voltage and temperature (and current, if applicable), you can use the following external sensors via Bluetooth:

Smart Battery SenseBMV-712 Smart Battery MonitorSmartShunt

Yes, the controller is compatible with Li-ion batteries. It features a recovery function for fully discharged batteries and can reconnect to a fully discharged Li-ion battery with an integrated disconnect function.

The SmartSolar MPPT 250/70-Tr controller integrates comprehensive electronic protections to ensure system safety:

Protection against overheating and power reduction in case of high temperature.
Protection against PV short-circuit.
Protection against PV reverse polarity.
Protection against PV reverse current.
Protection against output short-circuit.

The absolute maximum PV input voltage for the SmartSolar MPPT 250/70-Tr controller is 250 V (under coldest conditions). The maximum start-up and operating voltage is 245 V.

The controller uses a multi-stage adaptive charging algorithm. It comes with eight pre-programmed algorithms selectable via a rotary switch. Additionally, the charging algorithm is fully programmable, allowing complete customization to suit various battery types and specific needs.

Yes, the SmartSolar MPPT 250/70-Tr charge controller is equipped with a remote on/off function. It features a 2-pole connector that allows it to be connected, for example, to a VE.BUS BMS for external control.

The SmartSolar MPPT 250/70-Tr charge controller has an IP43 protection category for the electronic components, meaning it is protected against solid objects larger than 1 mm and water splashes. The connection area has IP22 protection, indicating protection against solid objects larger than 12.5 mm and water droplets falling at a maximum tilt of 15 degrees.