Eaton 315A Tag Fuse 2XL 1000V, 167 mm

This tag fuse is a photovoltaic protective device designed to isolate and interrupt fault currents in solar array combiners and DC disconnects within PV systems. It operates at high DC voltages typical of solar installations and is intended for use where fast response to faulted PV conditions, such as reverse current or multi-array faults, is required.

• 1000V rated voltage limits system exposure during DC faults
• 315A nominal current for high-capacity PV strings
• Fast-acting operation reduces energy let-through during faults
• High rupture capacity mitigates severe short-circuit stress
• Compatible with Eaton PV XL bases for simple integration
• Minimum interrupting rating equal to 2xIn for dependable clearing

• Suitable for protecting photovoltaic array combiners in commercial installations
• Ideal for DC disconnects on rooftop solar systems
• Used with inverter and combiner panels requiring 315A protection
• Can be used for fault isolation in multi-string solar arrays

The device provides significant breaking capacity consistent with XL photovoltaic specifications, offering high-kA interruption at 1000V DC and substantial I²t energy absorption appropriate for large PV faults.

Certain bolted variants share revised bolting patterns allowing interchangeability with larger body layouts, enabling use in existing dimensional layouts without redesign.

Specific extraction handles and microswitch assemblies are defined for the XL family, and compatible microswitch options are available to provide remote trip indication.

The link is engineered to interrupt low-level reverse and multi-array fault currents reliably, reducing propagation of DC faults through the array.