MERSEN FUSE 1000VDC NH2 gPV 250A HP10NH2GPV250

Why Choose the Mersen Y1037620 HP10NH2GPV250 Photovoltaic Fuse?

The Mersen Y1037620, catalogue number HP10NH2GPV250, is a high-performance gPV photovoltaic fuse link developed specifically for protecting solar photovoltaic systems against damaging overcurrents and short circuits. Part of the Mersen HelioProtection® HP10NH series, this fuse provides dependable DC circuit protection for large-scale solar arrays, combiner equipment and inverter inputs.

Designed for operation at up to 1000 V DC, the Y1037620 carries a rated current of 250 A and uses an industry-standard NH2 fuse body. Its full-range gPV operating class enables the fuse to interrupt both low-level fault currents and severe short-circuit currents, helping protect photovoltaic cables, conductors and associated equipment.

The fuse is equipped with plain blade contacts for installation in compatible fuse clips. Its robust construction, low power losses and ability to withstand repeated temperature cycling make it suitable for demanding outdoor and industrial photovoltaic installations where long-term system reliability is essential.

Key Advantages

• Purpose-designed gPV fuse protection for photovoltaic systems.
• 250 A rated current for high-capacity solar DC circuits.
• 1000 V DC voltage rating under IEC and UL specifications.
• Full-range protection against low-level overcurrents and short circuits.
• Durable construction withstands demanding photovoltaic temperature cycles.
• Low power losses support efficient solar power generation.
• Internationally recognised NH2 format for broad system compatibility.
• Complies with photovoltaic fuse standards including IEC 60269-6 and UL 2579.

Key Features

• Mersen HelioProtection® HP10NH photovoltaic fuse series.
• 250 A rated current.
• 1000 V DC rated voltage.
• gPV full-range photovoltaic fuse class.
• NH2 body size.
• Plain blade terminals for clip mounting.
• Low fault-current interrupting capability.
• High temperature-cycle withstand performance.
• Compact footprint for photovoltaic distribution equipment.
• Suitable for inverter inputs and array-combiner protection.

Reliable Protection for High-Power Photovoltaic Circuits

Photovoltaic installations can generate continuous DC fault currents that require specialist protective devices. Standard industrial fuses may not reliably interrupt the low-level fault currents associated with solar arrays, which is why dedicated gPV fuse links are used.

The Mersen Y1037620 is designed to isolate faulty photovoltaic strings, cables and array sections before excessive current causes damage. Its full-range gPV performance supports dependable protection throughout the operating range of the fuse, while its low power dissipation helps minimise energy losses within the system.

Typical Applications

• Utility-scale photovoltaic power plants.
• Commercial and industrial solar installations.
• Photovoltaic array-combiner boxes.
• Sub-combiner and master-combiner panels.
• Solar inverter DC input protection.
• Photovoltaic cable and conductor protection.
• Battery-supported solar energy systems.
• High-current DC distribution equipment.