Can we use this convert in bi facial solar panels 440 to 530w 144 cell panel

yes..its possible. Current will be <15A

Does it work when there are no mains supply

It is a grid connected microinverter. Hence will not work if there is no mains supply.

This has 60hz ac output, how can we connect it to 50hz india power grid??

The Enphase IQ7A sold in India, have 50 Hz configuration and approved by Bureau of Indian standards. These can be connected to India grid and is widely used across India with 100's of new Enphase connection each month.

Is it necessary to have internet connection at home to get warranty of enphase iq7a and envoy?

The Enphase IQ series and Envoy-S have power line communication (through existing power cables of system). The data to register system details and commission the system during commissioning is through Enphase server which is connected over cloud data via internet only. Further for any diagnostics or system data, all info is stored over Enphase cloud server only through Envoy-S. For all this internet is essential. If you do not have Wi-Fi, you can connect through data dongle also to internet which can be fitted directly to Envoy-S USB port. Hope this helps answer your question.

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Q: Does it work when there are no mains supply

It is a grid connected microinverter. Hence will not work if there is no mains supply.

Q: This has 60hz ac output, how can we connect it to 50hz india power grid??

The Enphase IQ7A sold in India, have 50 Hz configuration and approved by Bureau of Indian standards. These can be connected to India grid and is widely used across India with 100's of new Enphase connection each month.

Q: Is it necessary to have internet connection at home to get warranty of enphase iq7a and envoy?

The Enphase IQ series and Envoy-S have power line communication (through existing power cables of system). The data to register system details and commission the system during commissioning is through Enphase server which is connected over cloud data via internet only. Further for any diagnostics or system data, all info is stored over Enphase cloud server only through Envoy-S. For all this internet is essential. If you do not have Wi-Fi, you can connect through data dongle also to internet which can be fitted directly to Envoy-S USB port. Hope this helps answer your question.

ASIN	B08PSZNVPQ
Country of Origin	India
Generic Name	solar on grid microinverter
Importer	Sun-AP Ecopower, 393-B, 2nd Cross Rd, JP Nagar 4th Phase, Dollar Layout, Phase 4, J. P. Nagar, Bengaluru, Karnataka 560078
Included Components	1 IQ7A microinverter, 1 DC connector, 1 Q cable, 1 disconnect tool
Item Dimensions LxWxH	21.2 x 17.5 x 3 Centimeters
Item Weight	1 kg
Item model number	IQ7A
Manufacturer	Enphase energy, Enphase, 47281 Bayside Pkwy, Fremont, CA 94538, United States, https://enphase.com/en-in
Net Quantity	1.00 Set
Packer	Sun-AP Ecopower, 393-B, 2nd Cross Rd, JP Nagar 4th Phase, Dollar Layout, Phase 4, J. P. Nagar, Bengaluru, Karnataka 560078
Product Dimensions	21.2 x 17.5 x 3.02 cm; 1 kg

IQ7A microinverter

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