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The connectors comply with IEC 62852. 

Please be sure to observe the requirements set out in DIN VDE 0298-3 for cable routing, in particular the smallest 
permissible bending radii (Figure 6; R>5 x cable Ø) and the guidelines for cable fastening and routing. 

 

 

 

 

Figure 6: Bending radii 

 

 

The  connectors  have  a  protection  class  of  IP68  after  connecting  to  the  plug;  the  connector  socket  has  a 
protection class of IP65. Both components are permanently protected against environmental influences.  

 

 

 

 

 

Figure 7: Protection class 

 

 

Pleasure be sure to observe the instructions and installation instructions of the respective manufacturer. See 
Annex. 

You 

can 

also 

find 

the 

MultiContact 

instructions 

on 

our 

homepage 

under 

(

http://www.heckertsolar.com/de/downloads/partner-download-center/montage.html

). 

 

Cable routing 

Per string, 2 cables are required per string, that connect the solar generator to the inverter. Please use solar cables 
that comply with the standard EN 50618 class 5 and the respective requirements. The minimum cross-section is 
4mm². Cable losses should be < 1%. At greater distances, the cable cross-section must be adjusted accordingly. 
Please be sure to observe the requirements set out in DIN VDE 0298-3 for cable routing. 
 

The strings (+ and - cables) are fed into the inverter and connected to the DC  inputs. The module connectors are 
marked. To avoid conductor loops, the strings (+ and -) should be laid together.  

When  connecting  the  strings  to  the  inverter,  ensure  that  its  polarity  is  correct.  The  +  and  -  cables  must  not  be 
interchanged. Using a multimeter/voltmeter, the polarity and voltage of the individual strings should be verified before 
connecting them to the inverter. 

Only certified, suitable connectors are approved for the connection of the solar cables to the inverter. The installation 
or connection of the inverters should be carried out in accordance with the manufacturer's instructions. 

The inverter manufacturer’s instructions are binding. 

Summary of Contents for NeMo 3.0

Page 1: ...Installation and operating manual www heckert solar com Status 08 2021...

Page 2: ...ny time without prior notice Please use the most current copy You can find this on our homepage under http www heckertsolar com de downloads partner download center montage html This installation and...

Page 3: ...veral hours Rear ventilation The output of solar modules decreases considerably as the modules heat up Rear ventilation avoids yield impairing heat accumulation The so called chimney effect draught be...

Page 4: ...e modules in their packaging until ready for installation Always set the pallets on a reinforced level ground and do not stack them under any circumstances Standard packaging Picking packaging Number...

Page 5: ...ease observe the specific instructions for handling solar modules with AR glass Compared with non coated glass the surface of AR glass has a similar resistance to mechanical or chemical influences and...

Page 6: ...llation situation and the system used Please observe the installation situations in the following table and the resulting maximum load capacity of the modules The values shown Figure 3 correspond to t...

Page 7: ...installation and to facilitate installation our module frames are fitted with holes for load restraints Screws with hexagon socket head caps are fixed in these holes in the module frame The screws are...

Page 8: ...trained and skilled personnel No damaged modules may be installed Both external connector sockets are fitted with a cable 1150 mm in length and connectors The socket is located on the right hand side...

Page 9: ...or to the inverter Please use solar cables that comply with the standard EN 50618 class 5 and the respective requirements The minimum cross section is 4mm Cable losses should be 1 At greater distances...

Page 10: ...lightning protection system in place or planned for the building the PV system must be integrated in the protection system against a direct lightning strike When using transformer less inverters due...

Page 11: ...nd service warranty Information and terms for our product and service warranties can be found on our homepage under www heckert solar com 9 Exclusion of liability These installation and operating inst...

Page 12: ...12 Excerpt from MC4 crimping instructions Multi contact source...

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Page 17: ...17 Heckert Solar GmbH Carl von Bach Stra e 11 D 09116 Chemnitz...

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