EP Solar MPTT Solar Charge Controller

Tracer BN series

Tracer BN series is EPsolar’s second generation of MPPT controller. Compared with CLASSIC Tracer series, it has extensive communication ability. And the die-cast aluminum design ensures excellent heat dispersion. Compared to conventional PWM controller, MPPT technology increases the charge efficiency up to 30% and potentially decrease the power of solar array needed.

Charge 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

Top 3 Features

  • Advanced MPPT technology, with efficiency no less than 99.5%
  • Maximum conversion efficiency of 98%
  • Ultra-fast tracking speed and guaranteed tracking efficiency
  • See more features in our pdf

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Technical Specifications
Model Tracer1215BN Tracer2215BN Tracer3215BN Tracer4215BN
Nominal system voltage 12/24Vauto work
Rated battery current 10A 20A 30A 40A
Rated load current 10A 20A 30A 40A
Max. PV open circuit voltage 150V at minimum operating environment temperature 138V at 25℃environment temperature
MPP Voltage range Battery voltage+2V~108V
Max. PV input power 130W (12V) 260W (12V) 390W (12V) 520W (12V)
Max. PV input power 260W (24V) 520W (24V) 780W (24V) 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)
Grounding Common negative
Temp. compensation -3mV/℃/2V
Communication port RS485 / RJ45 interface

Mechanical Specifications
Mechanical Tracer1215BN Tracer2215BN Tracer3215BN Tracer4215BN
Overall dimension 196x118x36mm 217x143x56mm 281x160x60mm 303x183x64mm
Terminal 4mm2 10mm2 16mm2 25mm2
Net weight 0.9kg 1.5kg 2.3kg 2.9kg
Enclosure IP30
Environmental Specifications
Working temperature -35℃~+55℃
Storage temperature -35℃~+80℃
Humidity ≤95% N.C.