Lightning Surge Protection for EV Charging

PRODUCT DETAILS

Product Picture

ev-charing002

ev-dianlutu-8x4

EV Chargers surge protection circuit diagram

ev-dian-8x4

For 800-Volt fast charging systems

Introductions

IEC 60364-7-722 requires that Electric Vehicle(EV) Charging Systems and Electric Vehicle Supply Equipment (EVSE) installed in locations accessible to the public be protected against transient overvoltages, surge current and indirect lightning strikes.
Surge protective devices or PCB mounted thermal MOVs (PCB-TMOV) are necessary to be installed in indoor EVSE, outdoor EVSE and On-board chargers which are more susceptible to surge and lightning strikes.
REPSUN provides the perfect solutions of surge protection for EV chargers and EVSE.

Features

The on-board charger (OBC) is a power electronics device built in electric vehicles that converts AC power from external sources, such as residential outlets, to DC power to charge the vehicle power battery pack.
The off-board charger is connected with the AC power grid to convert the AC power into a controllable DC power supply to charge the vehicle power battery pack. It is generally installed in the DC charging station, also known as the DC charger.

Advantages of PCB-TMOV VS. MOV

PCB-TMOV		MOV
Offer greater thermal protection with mechanical disconnector and avoid resulting in overheating and fire		Without mechanical disconnector, MOV in PCB may be burned by the fire caused by thermal runaway due to MOV degradation failure or TOV destroy
With failure indication, ageing indication and optional remote alarm contact		Without any alarm function, MOV in the PCB at risk from potential fire hazard
Module production approach to improve efficiency of PCBA		Conventional production approach
Improve the safety of OBC built in EV and ensure the service life of EV chargers and EVSE		The cost to repair or replace the damaged charging equipment is higher caused by MOV failure

Potential fire hazard in PCB due to MOV failure

ev-fire2-8x4

ev-fire-8x4

Request A Quote