Surge Protection for Microinverter

OVERVIEW

Today’s increased reliance on very sensitive electronics makes surge protection an important topic for Surge Protection for Photovoltaic System that use microinverters. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.

This article discusses the various aspects of Microinverter Systems to help you develop a comprehensive surge mitigation strategy for your equipment. Each section will conclude with a Surge Protective Device (SPD) Protection Point which identifies where and what SPD to use.

Microinverter

SPD Protection Point - Microinverter System 120/240Vac

Location	Equipment	Protection Point	Surge Protector Model #	Link
	Main Panel	120/240Vac 1Ph, 3W+G Split Phase	MS100-120T
	Junction Box	240V L-L	DS72US-240T/NN
	Ethernet Communication	Ethernet	MJ8-C6A

SPD Protection Point - Microinverter System 120/208Vac

Location	Equipment	Protection Point	Surge Protector Model #	Link
	Main Panel	120/208Vac 3Ph, 4W+G Wye	MS100-120Y
	Junction Box	208V L-L	DS72US-240T/NN
	Ethernet Communication	Ethernet	MJ8-C6A

SPD Protection Point - Microinverter System 120Vac

Location	Equipment	Protection Point	Surge Protector Model #	Link
	Main Panel	120/208Vac 3Ph, 4W+G Wye	MS100-120Y
	Junction Box	120V L-N	DS72US-120S
	Ethernet Communication	Ethernet	MJ8-C6A

SPD Protection Point - Microinverter System 220Vac

Location	Equipment	Protection Point	Surge Protector Model #	Link
	Main Panel	240/400Vac 3Ph, 4W+G Wye	MS100-240Y
	Junction Box	220V L-N	DS72US-240T/NN
	Ethernet Communication	Ethernet	MJ8-C6A