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TECHNICAL BRIEF - North America

 

 

  

 

Tech Brief on Enphase System Shut down  

Contents

 

Contents ................................................................................................................................................... 1

 

1.

 

Use Enphase System Shutdown for Bypass ................................................................................ 2

 

a)

 

Working of the Enphase System Shut down ................................................................................. 3

 

b)

 

Wiring the Enphase System Shut down ........................................................................................ 3

 

c)

 

Enphase Energy System Shut down as Rapid Shutdown for PV ................................................. 4

 

d)

 

Activating Enphase System Shutdown ......................................................................................... 5

 

e)

 

Deactivating Enphase System Shutdown ..................................................................................... 5

 

2.

 

System Controller Manual Override Procedure for servicing Enphase Energy systems 

components ............................................................................................................................................. 5

 

3.

 

Manual Transfer Switch for Bypass .............................................................................................. 7

 

4.

 

Scenarios for using different switches ......................................................................................... 9

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for IQ System Controller

Page 1: ...ut down 3 b Wiring the Enphase System Shut down 3 c Enphase Energy System Shut down as Rapid Shutdown for PV 4 d Activating Enphase System Shutdown 5 e Deactivating Enphase System Shutdown 5 2 System Controller Manual Override Procedure for servicing Enphase Energy systems components 5 3 Manual Transfer Switch for Bypass 7 4 Scenarios for using different switches 9 ...

Page 2: ...ere is power flowing in from any other systems which might be connected outside of the Enphase Energy systems and take adequate precautions for disconnecting the right circuits and wearing protective gear before starting the maintenance work 1 Use Enphase System Shutdown for Bypass When the Enphase storage system needs service installer or homeowner can choose to bypass the Enphase storage system ...

Page 3: ...r opens the relays controlling the IQ Battery Solar Generator and auto transformer and only keeps the MID relay closed This effectively isolates the home from the Enphase Energy system and connects it directly with the grid b Wiring the Enphase System Shut down The wiring and installation of the Enphase Energy System shutdown switch is straightforward Upon purchasing the SKU EP200G NA 02 RSD the k...

Page 4: ...ical technicians to carry out maintenance activities safely The Enphase System Shutdown switch provides the functionality of Rapid shutdown as mandated by NEC when it is used with IQ System Controller 2 which has a IQ8 micro inverter connected to it For more information on Rapid shutdown please refer to the Rapid Shutdown FAQ https community enphase com s article Rapid Shutdown FAQs In order to he...

Page 5: ...ntenance the technicians need to bring the Enphase System Shutdown switch back to the ON position On deactivation of the Enphase Energy System shutdown the System Controller tries to connect to the main grid and if the main grid is absent then it will initiate necessary steps in order to form a microgrid from the Enphase Energy System products if it is applicable or from the Generator if it is pre...

Page 6: ...nerator if applicable turning the manual override toggle in IQ System Controller and closing back all breakers Refer to the label below for the complete instructions on how to initiate manual override and how to exist manual override We recommend that you download the label from this link and apply to the IQ System Controller deadfront above the manual override section Please note there are separa...

Page 7: ...supply from the grid Since the manual transfer switch ensures that the power is only available to the backed up loads via a single current path there are no parallel current paths in the system that would violate code requirements With the manual transfer switch there is no need to perform any other steps to turn off IQ Battery or IQ System Controller The installer or homeowner needs to simply mov...

Page 8: ...ystem Controller System Shutdown North America 8 2021 Enphase Energy Inc All rights reserved Override mode Enphase recommends a list of manual transfer switches The 200A options are shown in the image below ...

Page 9: ...WG 250kcmil 30 2 x 13 3 x 8 5 12 1 Eaton DT224URK NPS 200A 6AWG 250kcmil 37 86 x 19 6 x 6 1 11 3 Midwest GS1202B20UL 200A 6AWG 250kcmil 35 x 15 75 x 7 10 6 4 Scenarios for using different switches Enphase Energy Enphase Energy System Shutdown Switch Rapid shut down Manual Over ride switch Manual Transfer Switch Applicable System Controller Version System controller 2 System Controller 1 2 All vers...

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