About the 40a MPPT Solar Charge Controller
The Tracer BN series (Include this 40a MPPT Solar Charge Controller ) is 2nd generation of EPever MPPT Solar Controller. the MPPT Solar Controller has an extensive communication ability Compared to the CLASSIC Tracer MPPT Solar Controller, it has e And the die-cast aluminum design which ensures excellent heat dispersion. Compared to the conventional PWM controller, MPPT technology increases the charge efficiency up to 30% and potentially decreases the power of solar array needed.
The TracerBN is EPever’s evergreen mppt controller, which has been well received by customers since its introduction to the market with its excellent quality and robust performance.
The BN series adopts a negative grounding design, which is ideal for RV & Marine solar systems, and off-grid home solar systems.
Models of Tracer BN MPPT Solar Controller
Tracer1215BN, 10A, 12/24V auto work
Tracer2215BN, 20A, 12/24V auto work
Tracer3215BN, 30A, 12/24V auto work
Tracer4215BN, 40A, 12/24V auto work
Tracer BN MPPT Solar Charge Controller Intro
Tracer-BN MPPT Solar Controller series. Based on common negative design and advanced MPPT control algorithm, with the die-cast aluminum design for heat dissipation, products in this series are artistic, economical, and practical.
the Tracer BN MPPT Controller built with With MPPT control algorithm, in any situation, products of this series can fast and accurately track out the best maximum power point (MPP) of the photovoltaic array, in order to obtain the maximum solar energy in time, which remarkably improves energy efficiency.
All-around electronic fault self-test function and enhanced electronic protection function could furthest avoid damages on system components resulting from installation errors or system failures.
Parameters for the Tracer BN MPPT Controller

40a MPPT Solar Charge Controller Intro
This 2nd Generation 40A MPPT Solar Charge Controller 24V 12V System Auto Switch and has a Negative Grounding Design
Ultra-High Capacity of the 40A MPPT Controller: Exclusive MPPT Charging Technology, High tracking efficiency > 99.5 %, Peak Conversion Rate > 98 %, Fast tracking speed and guaranteed tracking efficiency, Real-time Energy Statistics
Excellent Heat Dissipation Overall Design, Die-Casting Aluminum Cooling Shell
Multiple load control modes: manual control, light ON/OFF, light On+Timer and time control, Support 4 charging options: Sealed, Gel, Flooded, and User-defined type
MultiProtect Safety System: PV short circuit protection, PV overcurrent protection, PV reverse polarity protection, Battery overvoltage protection, Battery over-discharge protection, Battery reverse polarity protection, Load overload protection, Load short circuit protection, Battery overheating protection
This MPPT Solar Controller is built Based on Comm Negative Design and advanced MPPT control Algorithm, With Modbus communication protocol interface, it is also convenient for customers to expand applications and monitor (MT50) in various fields like telecommunication base station, household system, caravan system, street lighting system, wilderness monitoring system, etc.
Features of 40A MPPT Solar Charge Controller
Wide MPP operating voltage range
LED indicators showing system status, simple and clear
Battery temperature compensation function (Temp Sensor)
Available for PC monitoring and external display unit connecting like MT50 and so on, realizing real-time data checking and parameters setting
Support software upgrade
Mobile Control with External WiFi Box or Bluetooth Box
Specifications of 40a MPPT solar charge controller
Nominal system voltage: 12V/24V Auto Work
Rated Battery Current: 40A
Rated Load Current: 20A
Max.PV open circuit voltage: 150V
MPP Voltage range: Battery voltage+2V~108V
Max. PV input power: 520W (12V), 1040W (24V)
Equalize charging voltage: Sealed: 14.6V, Flooded: 14.8V, USER: 9~17V
Boost charging voltage: Gel:14.2V, Sealed: 14.4V, Flooded:14.6V, USER: 9~17V
Float charging voltage: Gel /Sealed /Flooded: 13.8V, USER: 9~17V
Low voltage reconnect voltage: Gel /Sealed /Flooded: 12.6V, USER: 9~17V
Low voltage disconnect voltage: Gel /Sealed /Flooded: 11.1V, USER: 9~17V
Self-consumption: ≤60mA(12V) ≤30mA(24V)
Temp. compensation: -3mV/℃/2V
Communication Port: RS485 / RJ45 interface
Humidity: ≤95% N.C.
Enclosure: IP30
Terminal: 25mm2/#6 AWG

User Manual Download
User Manual can be download at the Download Center
Models to choose at this Product Page
Tracer1215BN 10A MPPT Solar Charge Controller
Tracer2215BN 20A MPPT Solar Charge Controller
Tracer3215BN 30A MPPT Solar Charge Controller
Tracer4215BN 40A MPPT Solar Charge Controller
Donald Steven –
works fine on my RV
victor –
very good, it work as i expected
Thompson –
The charge controller works great.
Kanaky22 –
I did some research on this unit and it looks very promising and reliable. Am looking forward to installing this into my tent trailer with the solar panels and battery.
John M. Blackford –
Installed and working very well
rejuan –
nice solar kit
Andrews J –
Fast delivery. I am happy. Thanks.
nelsao –
BEST VALUE MPPT Charge Controller
electro_jeff –
this is a genuine product. it works well, though I still have to use it full power. I programmed the different tensions for my lifepo4 battery, using the MT50. all works well.
Rodriguez –
Quality product and a very good price.
WilliamS –
Installed and working very well. will definitely recommend this epever controller.
Jorge –
Excelente
D. Wagoner –
Probably the best value for money MPPT charger you can get
Onkel –
works better than expected
bjorn456 –
Large wire clamps and easy read backlit display. Will be installing shortly
gilmar –
very good
JohnJ533 –
One of the best solar controllers on the market
flojo –
looking good so far
Xcelboi –
Great quality, works well
Ribeiro –
muito bom
Sikoo –
great product, good working conditions
John L. Powers –
good mppt solar charge controllar. i am happy. original product
vit –
very good EPEVER Tracer MPPT received in time and connected with the solar system working very good I advice to use it instead of PMW Thanks BG