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In-line fuse protects against ground fault damage

July 12, 2012 // Paul Buckley

In-line fuse protects against ground fault damage

Amphenol Industrial Global Operations is now offering a molded in-line fuse that helps protect photovoltaic systems from ground fault current damage. Used by PV system engineers, EPCs, solar contractors and design engineers, Amphenol's HelioFuse is rugged and easy to install.


HelioFuse was developed to address the need for a cost-effective solution to ground fault protection in PV systems without the need for a combiner box to houses the solar panel's fuse links. The device’s molded construction provides weather tight housing that prevents moisture from getting into the fuse and further protects it from harsh weather.

The UL-approved HelioFuse is designed for rapid removal and replacement with minimal system downtime should a ground fault occur. The molded in-line fuse is fully intermateable with industry standard PV connectors.

The IP68-rated HelioFuse is offered in two configurations, a connector version that plugs into an industry standard solar connector like the Helios H4 connector and a wire overmold version for custom harnesses.

HelioFuse operates at a maximum of 1000 V DC with a 20 A rating and a 10,000 A current withstand rating.

Visits Amphenol at www.amphenol-industrial.com

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