sales service hotline:0532-58517159

sales service hotline:0532-58517159

    126kv intelligent combination electrical appliance

      yhv photovoltaic combiner box


      ​ a combiner box refers to a user who can connect a certain number of photovoltaic cells with the same specifications in series to form a series of photovoltaic cells. then, several photovoltaic series are connected in parallel to the photovoltaic combiner box. after converging in the photovoltaic combiner box, the controller, dc distribution cabinet, photovoltaic inverter, and ac distribution cabinet are used together to form a complete photovoltaic power generation system, achieving grid connection with the city power supply.

      performance characteristics

      forming a series of photovoltaic arrays

      parallel connection to photovoltaic combiner box

      used together to form a complete photovoltaic power generation system

      realizing grid connection with mains power

      technical parameters of detection unit



      pv battery string input

      16 channels, 0-20 adc, accuracy 0.5%

      analog input

      3-way, 4-20ma/0-5v, accuracy 0.5%

      state input

      2-way di quantity, passive, 2500v photoelectric isolation


      communication interface

      1 * rs4852500v photoelectric isolation


      communication port lightning protection

      4kv (10/700us) (gb9043-1999), lightning protection

      digital tube display

      accurate to 0.01, error 5

      work environment


      working power supply

      85 ~ 264vac

      18 ~ 36vdc

      power dissipation

      ≤ 8w

      working temperature

      -35° c ~ 75° c (-31° f ~ 158° f)

      storage temperature

      -40° c ~ 85° c (-40° f ~ 185° f)

      relative humidity

      5-95% non condensing

      electromagnetic compatibility (emc)

      electrostatic discharge

      gb/t 17626-4-2 level 3

      fast transient

      gb/t 17626-4-4 level 3 (requires communication port lightning arrester)

      impulse current

      gb/t 17626-4-5 level 3 (requires communication port lightning arrester)

      power frequency magnetic field

      gb/t 17626-4-8 grade 4

      equipment technical parameters


      product model


      maximum number of access paths

      16 routes

      ambient temperature

      -25~ 40℃

      environmental humidity


      working altitude

      3000 meter level

      maximum input current per circuit


      maximum open circuit voltage per circuit



      each positive and negative pole is connected to a dc1000v photovoltaic dedicated fuse

      lightning arrester

      the positive and negative poles of the busbar are respectively connected to photovoltaic special lightning arresters

      circuit breaker

      the positive and negative poles of the busbar are respectively connected to photovoltaic dedicated circuit breakers, with a rated current of 160a and a voltage of dc1000v

      design of combiner box

      enclosed design of the box, anti-static, shockproof, dustproof, rust proof, rain proof, flame retardant

      heat dissipation of combiner box

      natural heat dissipation of the box

      lightning protection of combiner box

      grounding and lightning protection of busbar box


      input to ground, output to ground, and input to output insulation resistance 20m ω

      system response time

      1 second

      working power supply

      using an internal combiner dc power supply

      testing accuracy

      photovoltaic cell measurement accuracy level 0.5, external analog quantity level 0.2

      rs485 communication

      rs485 magnetic isolation/modbus rtu protocol, 4800/9600/19200/38400bps

      shell waterproof grade

      ip65, for indoor and outdoor installation and use