Mersen makes solar power safe and reliable with first-to-market electrical protection for the PV industry, including UL 2579 listed HelioProtection fuses, HP6M, HP10M, and HP6J. Mersen is currently the only manufacturer serving the PV market with overcurrent, surge protection, and thermal management solutions.
 
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http://ep-us.mersen.com/solutions/solar-power.cfm