What is an IQ System Controller 3 INT?

The IQ System Controller 3 INT connects the home to the public electricity grid, the IQ Battery 5P with FlexPhase storage system, and IQ7 or IQ8 Series Microinverter circuits. It provides automatic transfer switch (ATS) functionality that automatically detects and transitions the home energy system from grid power to backup power in the event of a power cut. It consolidates interconnection equipment, IQ Gateway Metered, and IQ Relay functionality into a single enclosure and streamlines grid-independent capabilities of PV and storage installations by providing a consistent, pre-wired solution, including CTs.

Do I have to buy an IQ System Controller for every site?

No, an IQ System Controller is needed only if you desire to have a backup application. It is not needed in the case of grid-tied systems.

Can I use IQ System Controller for full home backup applications?

Yes, the IQ System Controller can support up to 80 A of current per phase.

Do I have to buy IQ Relays separately for backup applications?

No, the IQ Relay functionality is included in the IQ System Controller.

If I already have an Enphase grid-tied system with PV only, can I buy an IQ System Controller to upgrade to a backup system?

If you have a PV-only grid-tied system, you can purchase the IQ Battery 5P with FlexPhase and the IQ System Controller to complete your upgrade to backup.

Does IQ System Controller support backup with a string inverter?

Yes, the IQ System Controller supports backup with a string inverter. Refer to the system planning guide for detailed guidance.

Can I use IQ System Controller to have a backup in case of PV-only systems?

No, the IQ System Controller can be used for backup only in systems having PV and batteries.

How many IQ Battery 5P with FlexPhase can be connected to the IQ System Controller and IQ Combiner 2 EU 3P?

Please refer to the system planning guide at the documentation center for details on system sizing.

Are MCBs and RCD included with the IQ System Controller?

No, the MCBs and RCD need to be procured and installed in the IQ System Controller by the installer as per site requirements.

What is the function of an SSD in an IQ System Controller?

SSD is a switch that can be used for system shutdown during emergencies. This switch should be installed in an accessible location.

Does SSD come with an IQ System Controller?

Yes, every IQ System Controller will be shipped with an SSD and needs to be wired on-site and installed by the installer.

Can the IQ Battery 5P with FlexPhase be configured as both single and three-phase battery?

Yes. The IQ Battery 5P with FlexPhase is shipped in a single-phase configuration and has a jumper installed on the power terminals of the battery. Removing the jumper allows for the battery to be configured as a three-phase battery.

How much power does the IQ Battery 5P with FlexPhase provide?

When configured as a single-phase battery, the continuous AC output power is 3.84 kW on a single-phase. When configured as a three-phase battery, the continuous AC output power is 1.28 kW per phase.

What is the surge current capability of the IQ Battery 5P with FlexPhase?

The IQ Battery 5P with FlexPhase can provide up to 160% of rated continuous AC output power for up to 10 s and 200% for up to 3 s. This can help provide the current needed to start up heavy loads such as compressors or motors in off-grid systems.

Can I enable backup with IQ Battery 3T/10T with IQ System Controller 3 INT?

No. IQ System Controller 3 INT offers backup only with IQ Battery 5P or IQ Battery 5P with FlexPhase.

Which PV sources can I use with IQ System Controller in backup?

You can use IQ7/IQ8 Series Microinverters or string inverters. For string inverters, installing an aux contact is mandatory.

SKU: COMMS-KIT-INT-02

Communications Kit 2

Communications Kit 2 INT umożliwia komunikację pomiędzy IQ Gateway Metered a IQ Battery 5P with FlexPhase za pośrednictwem przewodowej komunikacji sterującej. Integracja z Enphase Energy System trzeciej generacji jest wymagana do działania IQ Battery 5P with FlexPhase w trybie on-grid.

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Długość	69 mm
Szerokość	152 mm
Wysokość	25 mm

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