Eaton 315A Tag Fuse 3L 1500V

This tag fuse is a photovoltaic protective link designed to isolate and interrupt fault currents in solar arrays and associated combiners or disconnects. It is intended for use in high-voltage PV systems where Rapid clearing of reverse or multi-array faults is required, and it conforms to recognised international standards for PV protective devices.

• Rated for 1500V DC operation enabling high-voltage string protection
• Fast-acting 315A characteristic for Rapid fault clearing
• High rupture capacity providing robust interruption performance
• gPV operational class suited to photovoltaic fault types
• Bladed 3L body form compatible with XL base hardware

• Suitable for protecting photovoltaic array combiners and disconnects
• Ideal for inverter input protection in large solar installations
• Can be used for segmenting multi-array strings to limit fault propagation

It is engineered to interrupt low overcurrents typical of faulted PV systems, including reverse current and multi-array faults, with a fast-acting characteristic to minimise energy let-through.

It is compatible with dedicated XL photovoltaic fuse bases sized for 3L body types and with associated microswitch accessories for status signalling.

At 1500V DC the link provides the specified breaking capacity for its rated current and operates within class gPV, ensuring consistent arcing interruption under PV fault conditions.

There are both bladed versions with TOP indicators and bolted variants with side indicators for use in different panel designs and mounting preferences.