Skip to content

Tracer BN Series (10-40A)

The Tracer BN series is EPSOLAR's second generation of MPPT control units. Compared to the Tracer series there is an improved communication ability. The die-cast aluminum design also ensures excellent heat dissipation.

Compared to conventional PWM controllers, the MPPT technology increases the charging efficiency by up to 30%.


  • MPPT (Max Power Point Tracking)
  • Automatic system voltage detection 12/24 V
  • Solar input module open circuit voltage from 5V to 150V open circuit voltage
  • Battery deep discharge protection, overcharge protection, overvoltage protection
  • RS485 / interface, Modbus protocol
  • Monitoring via PC software or MT50 display
  • Temperature-dependent charging parameter correction
  • Fanless convection cooling up to 50 ° C
  • Timer function up to 1-15 hours option for night lighting
  • Automatic day / night detection
  • Load output with switch-off option
  • 4 battery types adjustable (open acid, AGM, gel, user)
  • suitable for lithium batteries

Technical specifications

  • Battery nominal voltage 12/24 DC
  • Module open circuit voltage up to 150V DC
  • Max. Module power 120-480W (12V) / 240-960W (24V)
  • Max. Charging current 10-40 A
  • Type. Own power consumption <50 mA
  • Temperature range - 25 ° C to + 60 ° C
  • Degree of protection IP20
  • Dimensions 302.5 x 182.7 x 63.5 mm
  • Connection terminals 25 mm²


The controller can be monitored and set using the MT50 display or adapter cable and software. The controller can be monitored using the PC software.
4 types of batteries can be set. In the User battery type, the charging voltages are freely selectable and programmable via the software. (Lithium batteries)
A switchable load output gives the user the option of switching on or off all consumers that are connected to the solar charge controller at the push of a button on the controller or via software settings on the PC.
2 timers can control night lighting as soon as the controller detects "night" through the solar module.
Yield measurement of all system parameters and monitoring possible via PC software.
The controller can be set and monitored with the optionally available MT50 display.

Datasheet English

Manual English

Manual German