SMARTSOLAR MPPT 250/70 TR
VICTRON SMARTSOLAR MPPT REGULATOR 12/24/36/48V 250V/70A SCREW TERMINAL • BUILT IN BLUETOOTH FOR EASE OF PROGRAMMING & MONITORING
Reference No. SCC125070220
Victron Smartsolar MPPT:
A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time. SmartSolar maintains battery health, extending its life.
PWM and MPPT charge controllers are both widely used to charge batteries with solar power. The PWM controller is in essence a switch that connects a solar array to the battery. The result is that the voltage of the array will be pulled down to near that of the battery. The MPPT controller is more sophisticated (and more expensive): it will adjust its input voltage to harvest the maximum power from the solar array and then transform this power to supply the varying voltage requirement of the battery plus load. Thus, it essentially decouples the array and battery voltages so that there can be, for example, a 12 volt battery on one side of the MPPT charge controller and panels wired in series to produce 36 volts on the other.
It is generally accepted that MPPT will outperform PWM in a cold to temperate climate, while both controllers will show approximately the same performance in a subtropical to tropical climate. Besides performing the function of a basic controller, an MPPT controller also includes a DC to DC voltage converter, converting the voltage of the array to that required by the batteries, with very little loss of power.
An MPPT controller attempts to harvest power from the array near its Maximum Power Point, whilst supplying the varying voltage requirements of the battery plus load. Thus, it essentially decouples the array and battery voltages, so that there can be a 12 volt battery on one side of the MPPT charge controller and two 12 Vpanels wired in series to produce 36 volts on the other. If connected to a PV array with a substantially higher nominal voltage than the battery voltage, an MPPT controller will therefore provide charge current even at very high cell temperatures or in low irradiance conditions when a PWM controller would not help much.
As array size increases, both cabling cross sectional area and cable length will increase. The option to wire more panels in series and thereby decrease current, is a compelling reason to install an MPPT controller as soon as the array power exceeds a few hundred Watts (12 V battery), or several 100 Watts (24 V or 48 V battery)
Bluetooth Smart built-in: dongle not needed- The wireless solution to set-up, monitor and update the controller using Apple and Android smartphones, tablets or other devices.
VE.Direct- For a wired data connection to a Color Control GX, other GX products, PC or other devices
Ultra-fast Maximum Power Point Tracking (MPPT)- Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% compared to slower MPPT controllers.
Advanced Maximum Power Point Detection in case of partial shading conditions- If partial shading occurs, two or more maximum power points may be present on the power-voltage curve. Conventional MPPTs tend to lock to a local MPP, which may not be the optimum MPP. The innovative BlueSolar algorithm will always maximize energy harvest by locking to the optimum MPP.
Outstanding conversion efficiency- No cooling fan. Maximum efficiency exceeds 98%.
Flexible charge algorithm- Fully programmable charge algorithm (see the software page on our website), and eight pre-programmed algorithms, selectable with a rotary switch (see manual for details).
Programming, real-time data and history display options- Modern Apple and Android smartphones, tablets, macbooks and other devices: see the VE.Direct Bluetooth Smart dongle and the MPPT app discovery sheet for screenshots.
Programmable relay- Can be programmed (a.o. with a smartphone) to trip on an alarm, or other events.
Optional: pluggable LCD display- Simply remove the rubber seal that protects the plug on the front of the controller, and plug-in the display.
Remote on-off- To connect for example to a VE.BUS BMS.
Extensive electronic protection- Over-temperature protection and power derating when temperature is high. PV short circuit and PV reverse polarity protection. PV reverse current protection.
Internal temperature sensor- Compensates absorption and float charge voltage for temperature.
SmartSolar Charge Controller
12 / 24 / 48V Auto Select(Software tool needed to select 36V)
Rated charge current
Nominal PV power, 12V 1a,b)
Nominal PV power, 24V 1a,b)
Nominal PV power, 48V 1a,b)
Max. PV short circuit current 2)
50A (max 30A per MC4 conn.)
70A (max 30A per MC4 conn.)
Maximum PV open circuit voltage
250V absolute maximum coldest conditions
245V start-up and operating maximum
Less than 35mA @ 12V / 20mA @ 48V
Charge voltage 'absorption'
Default setting: 14,4 / 28,8 / 43,2 / 57,6V
(adjustable with: rotary switch, display, VE.Direct or Bluetooth)
Charge voltage 'float'
Default setting: 13,8 / 27,6 / 41,4 / 55,2V
(adjustable: rotary switch, display, VE.Direct or Bluetooth)
-16 mV / -32 mV / -64 mV / °C
Battery reverse polarity (fuse, not user accessible)
PV reverse polarity / Output short circuit / Over temperature
-30 to +60°C (full rated output up to 40°C)
5000m (full rated output up to 2000m)
Data communication port
VE.Direct or Bluetooth
Yes (2 pole connector)
AC rating: 240VAC / 4A
DC rating: 4A up to 35VDC, 1A up to 60VDC
Yes (not synchronized)
Blue (RAL 5012)
PV terminals 3)
35 mm² / AWG2 (Tr models)
Two sets of MC4 connectors (MC4 models 250/60 and 250/70)
Three sets of MC4 connectors (MC4 models 250/85 and 250/100)
35mm² / AWG2
IP43 (electronic components), IP22 (connection area)
Dimensions (h x w x d) in mm
Tr models: 185 x 250 x 95
MC4 models: 215 x 250 x 95
Tr models: 216 x 295 x 103
MC4 models: 246 x 295 x 103
EN/IEC 62109-1, UL 1741, CSA C22.2
1a) If more PV power is connected, the controller will limit input power.
1b) The PV voltage must exceed Vbat + 5V for the controller to start. Thereafter the minimum PV voltage is Vbat + 1V.
2) A PV array with a higher short circuit current may damage the controller.
3) MC4 models: several splitter pairs may be needed to parallel the strings of solar panels