DC combiner box "DCCBs"

With the integrated string.bloxx it is possible to monitor inverter-independent precisely the DC side of photovoltaic systems.

Read moreVariants

DC combiner box "DCCBs"

Customized monitored and passive DC combiner boxes

In large solar systems monitoring and troubleshooting becomes more complex.

Each operator is interested in finding errors in a module, string, or a group quickly because they can reduce the amount of energy produced and the life of the system greatly. With the help of the Generator Connection Box the individual solar module strands of a photovoltaic system can be connected in parallel and connected to larger wire cross sections to the inverter.

With the integrated string.bloxx it is possible to monitor inverter-independent precisely the DC side of photovoltaic systems. The data exchange between a string bloxx and superior management system can be direct by the open standard Modbus RTU Bus.

Key features

DC Combiner Box individual 

  • 2,4, 8, 12, 16, 24, 32 PV strings can be connected other versions available on request
  • Consistent 1000/1500 VDC layout
  • String monitoring measure device String.bloxx
  • Overvoltage protection SPD 1000/1500 VDC
  • Lever type switch fuse in positive and or negative pole with contact protection push-in terminal block for string connection Conductor cross section 1,5 – 10 mm²
  • PV Fuse 10-50A 1000/1500VDC in positive and negative pole with contact protection
  • DC load break switch 30-400A
  • String connection terminals 1,5 - 10 mm², MC4, MC4 EVO2, Sunclix
  • enclosure (material: polyester monobloc) IP65 Rack/wall mount
  • Cable gland input or MC4, MC4 EVO2, Sunclix panel mount connector

String Monitoring Features

  • Features string monitoring “String.bloxx”
  • 8,16, 24 Current measurement channels
  • 1 analog input channel for voltage, 0-1000 VDC string voltage
  • 2 Digital inputs
  • Monitoring of overvoltage protection and main switch
  • RS485 fieldbus interface up to 115,2 kbps: Modbus-RTU (optional OEM)
  • Signal conditioning calculated DC Power, linearization, mean value, Min/Max storage, alarm
  • Features String.bloxx 208, 116, 124
  • Integrated LC display, Display of all readings including current and DC power
  • Analog current measurements ± 26 A
  • 1 PT1000 Cabinet temperature sensor
  • 1 PT1000 Input
  • Monitoring of overvoltage protection and main switch
  • Features String.bloxx 116 EM, 124 EM:
    • 16/24 Analog current measurements + 26 A
    • On board Temperature sensor

With the help of DC Combiner Boxes (DCCBs) the individual solar module strands of a photovoltaic system can be connected in parallel and connected to larger wire cross sections to the inverter. Passive DCCBs do not measure the currents or other parameters on string level.

We develop passive DCCBs according to the individual needs of our clients with flexible number of string inputs and with/without fuses.

Key features

Sample features of a DC String Combiner “String.CB 24 passive”:

  • “Made in Germany”
  • PV Generator Connection Box Junction box Rack/wall mount with IP65 enclosure
  • 24 PV strings input
  • No string Measurement
  • 48 fuses 16A/1500VDC gPV (positive and negative side)
  • String cable input max. 10mm²
  • DC main switch 315A/1500VDC
  • DC output max 240mm² V-clamp (Optional 300mm²)
  • enclosure (material: polyester monobloc) IP65 Rack/wall mount H850xW650xD300mm
  • Cable gland 48xM12 string cable (3,0-7,0mm) 2xM50 DC Out cable (22,0-29,0mm) 1xM20 grounding cabel

Download RFQ form

 

 

Please download and complete our detailed RFQ forms and send them to office@gantner-environment.com

 

Get in touch and let's start together

We are happy to advise you on your project and to help you to solve your challenges. We look forward to your inquiry.

Start inquiry now