Hoymiles MI-300NT User Manual Download Page 4 | Manualshive

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Hoymiles MI-300NT User Manual Download Page 4

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 4

MI-300NT/MI-350NT/MI-400NT

8. Technical Data

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8.1 DC Input

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8.2 AC Output

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8.3 Efficiency, Safety and Protection

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8.4 Mechanical Data

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8.5 Features

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Appendix 1:

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Installation Map

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Appendix 2:

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WIRING DIAGRAM –120VAC / 240VAC SPLIT PHASE:

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WIRING DIAGRAM – 120VAC / 208VAC THREE PHASE:

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Summary of Contents for MI-300NT

Page 1: ...Version 1 1 June 2020...

Page 2: ...control the production of a single photovoltaic module directly consequently improving the flexibility and reliability of the system About the Manual This manual contains important instructions for t...

Page 3: ...ghlights 8 3 3 Terminals Introduction 8 3 4 Dimension mm 8 4 About Function 9 4 1 Work Mode 9 5 About Installation 9 5 1 Accessories 9 5 2 Installation Precaution 10 5 3 Space Distance Required 10 5 4...

Page 4: ...NT MI 400NT 8 Technical Data 22 8 1 DC Input 23 8 2 AC Output 23 8 3 Efficiency Safety and Protection 23 8 4 Mechanical Data 24 8 5 Features 24 Appendix 1 25 Installation Map 25 Appendix 2 26 WIRING D...

Page 5: ...Important Safety Instructions The MI 300NT MI 350NT MI 400NT Microinverter is designed and tested according to iernational safety requirements However certain safety precautions must be taken when ins...

Page 6: ...ipment when the safety devices do not work or disabled Use personal protective equipment including gloves and eye protection during the installation Inform the manufacturer about non standard installa...

Page 7: ...ergy However if not installed according to the instructions the microinverter may cause harmful interference to radio equipment There is no guarantee that the interference will not occur in a particul...

Page 8: ...O 1 CEC weighted efficiency 96 50 peak efficiency 96 70 in 2015 3 2 Highlights Peak output power up to 300W 350W 400W Adapted to 60 72 cells PV panels Peak efficiency 96 70 CEC weighted efficiency 96...

Page 9: ...l circumstance that Microinverter will stay in Standby mode The current condition is contradicted with Microinverter operating requirement No house loads or the Export control value has been set as 0...

Page 10: ...e countries the DTU will be required to meet the local grid regulation e g G98 99 for UK etc 5 3 Space Distance Required If the microinverters are installed on a concrete roof or steel roof the commun...

Page 11: ...w around the inverter is not blocked Do not install in places where gasses or flammable substances may be present Avoid electromagnetic interference that can compromise the correct operation of electr...

Page 12: ...ug the upper cover back to the bus connector 5 6 Installation Steps Step 1 Fix Microinverter on the Rail A Mark the approximate center of each panel on the frame B Fix the screw on the rail C Hang the...

Page 13: ...please plug the AC sub cap on the vacant plug to ensure waterproof and dustproof Note Under the circumstances that need to remove the inverter AC cable from bus port please use the AC connector unlock...

Page 14: ...rid network Step 4 Create an Installation Map A Peel the removable serial number lable from each microinverter The position of the label is shown as below B Affix the serial number label to the respec...

Page 15: ...1 Over temperature protection 1 Check the ventilation and ambient temperature at the microinverter installation position 2 If the ventilation is poor or the ambient temperature exceeds the limit impro...

Page 16: ...croinverter can recover automatically after grid voltage becomes normal 2 If the alarm occurs frequently check whether the grid voltage is within the acceptable range If no contact the local power ope...

Page 17: ...outage Please check whether there is a power grid outage 148 Grid disconnection Please check whether the AC switch or AC wiring is normal 149 Island detected 1 If the alarm occurs accidentally the gr...

Page 18: ...ccurs accidentally and the microinverter can still work normally no special treatment is required 2 If the alarm occurs frequently and cannot be recovered contact your dealer or Hoymiles technical sup...

Page 19: ...inverter follow the steps in the order shown 1 Verify the utility voltage and frequency are within ranges shown in the in appendix Technical Data of this microinverter 2 Check the connection to the ut...

Page 20: ...repairs In order to preserving the integrity of safety and insulation the Microinverters are not designed to allow internal repairs The AC output wiring harness AC drop cable on the Microinverter cann...

Page 21: ...ind the device that you just replaced Please click the down arrow next to the More on the right side of the page and select Replace Input the new Microinverter s SN and click Ok to complete the statio...

Page 22: ...ked The equipment must be stored in well ventilated indoor areas that do not have characteristics that might damage the components of the equipment Take a complete inspection when restarting after a l...

Page 23: ...MI 350NT MI 400N Peak output power W 300 350 400 Maximum continuous output power W 295 349 382 Maximum continuous output current A 1 42 208V 1 23 240V 1 68 208V 1 45 240V 1 84 208V 1 59 240V Nominal o...

Page 24: ...0 65 Storage temperature range 40 85 40 85 40 85 Dimensions W H D mm 178 153 28 Weight kg 1 75 Enclosure rating Outdoor NEMA IP67 Cooling Natural convection No fans Model MI 300NT MI 350NT MI 400NT Co...

Page 25: ...2019 Hoymiles Converter Technology Co Ltd All rights reserved 25 MI 300NT MI 350NT MI 400NT Appendix 1 Installation Map...

Page 26: ...IAGRAM 120VAC 240VAC SPLIT PHASE UP TO 10 MI 400NTs PER 20A AC BRANCH CIRCUIT GROUND NEUTRAL W AC DISTRIBUTION PANEL OR SUBPANEL METER AC BRANCH CABLE BROWN L BLUE N YELLOW GREEN G BRANCH END CAP L1 P...

Page 27: ...N PANEL OR SUBPANEL METER AC BRANCH CABLE BROWN L BLUE N YELLOW GREEN G L1 L2 L3 ETHERNET CONNECTION TO BROADBAND ROUTER CONNECTION TO DTU POWER ADAPATER 5V DTU UP TO 99 MI 400NTs UP TO 10 MI 400NTs P...

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