Surge Protection for Level 3 EV Charging Stations

DC Fast Charging (DCFC)

OVERVIEW

Today’s increased reliance on very sensitive electronics makes surge protection an important topic for Electric Vehicle (EV) Charging Systems. 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 types of EV Charging Systems and Electric Vehicle Supply Equipment (EVSE) to help you develop a comprehensive surge mitigation strategy. Each section will provide a recommendation on exactly which EV surge protector to use for your equipment and where to install these Surge Protective Devices for EV Chargers.

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Level 3 EV Charging Station

Power Source : DC Fast Charging (DCFC)

The fastest charging method (30 minutes for 124 miles) but also the most costly. These are connected to the power utility grid with an AC to DC power conversion module. The output DC voltage range is from 120Vdc to 920Vdc with higher voltages expected in the future. In addition to the AC source, these systems can be fed or supplemented with by a photovoltaic power plant or energy storage system.

EV SPD Protection Point - DC Power Cabinet and Charging Dispenser

Links to Level 3 EV SPD

Location	Equipment	Protection Point	Surge Protector Model #	Link
	Power Cabinet	277Vac Power Input	DS73US-277Y/NN
		Up to 1500VDC Power Output	DS50PVS-1500/51
		120-240Vac Power Input	DS72US-240T/NN
		Ethernet Cat 6A	MJ8-C6A
	Charging Dispenser	Up to 1500VDC Power Input	DS50PVS-1500/51
		Ethernet Cat 6A	MJ8-POE-C6A

10108 USA Today Way Miramar, FL 33025 USA	Contact us to develop a surge mitigation solution for your application
www.citel.us	Where to purchase Citel SPD's

Standard and Electric Code References for Surge Protective Devices