Mersen B1048663 HP10NH1GPV50B HelioProtection NH1 gPV photovoltaic fuse-link rated at 50 A and 1000 V DC with direct-mount bolted terminals for solar power systems.
£90.66
The Mersen B1048663, catalogue reference HP10NH1GPV50B, is a direct-mount photovoltaic fuse-link designed to provide reliable protection for grouped solar strings, photovoltaic cables and DC power distribution systems. As part of the Mersen HelioProtection® HP10NH series, it delivers dependable full-range protection for photovoltaic installations operating at up to 1000 V DC.
Featuring a specialised gPV operating characteristic, this fuse is engineered specifically for solar power applications where sustained DC fault currents require dedicated protection. Its direct-mount design allows secure installation while protecting combiner boxes, inverter inputs and associated photovoltaic equipment from overloads and short-circuit faults.
With a rated current of 50 A, an NH1 square-body format and direct-mount bolted terminals, the B1048663 is ideal for commercial rooftop installations, industrial photovoltaic systems and utility-scale renewable energy projects requiring dependable overcurrent protection.
Photovoltaic arrays produce sustained DC fault currents that require specialised protective devices. The Mersen B1048663 provides full-range gPV protection, enabling it to safely interrupt overloads and short-circuit faults while protecting valuable solar power equipment and maintaining installation reliability.
Its direct-mount design is particularly suitable for photovoltaic combiner boxes, inverter assemblies and renewable energy distribution systems where secure bolted electrical connections and dependable long-term performance are essential.
| Current | 50 A |
|---|---|
| Voltage | 000 V |
| Manufacturer | Mersen |
| Series | HelioProtection® HP10NH |
| Model | B1048663 |
| Catalogue reference | HP10NH1GPV50B |
| Product type | Photovoltaic fuse-link |
| Rated current | 50 A |
| Rated voltage IEC | 1000 V DC |
| Rated voltage UL | 1000 V DC |
| Operating characteristic | gPV |
| Current type | DC |
| Breaking capacity | 50 kA |
| Fuse size | NH1 |
| Connection type | Direct-mount bolted terminals |
| Terminal material | Silver-plated copper |
| Power dissipation at rated current | 11 W |
| Power dissipation at 70% In | 4.6 W |
| Weight | Approx. 0.4 kg |
| EAN | 3605340577846 |
| HS Code | 85361050 |
The Mersen B1048663 protects grouped photovoltaic strings, solar array cables and DC power equipment against overloads and short-circuit faults.
The B1048663 has a rated current of 50 A.
This photovoltaic fuse is rated for operation at up to 1000 V DC.
A gPV fuse provides full-range protection specifically for photovoltaic systems, protecting against both overloads and short-circuit faults.
The fuse uses an NH1 square-body format with direct-mount bolted terminals for secure installation in compatible photovoltaic fuse bases.
Mersen HelioProtection® photovoltaic fuse-links are trusted worldwide by solar installers, EPC contractors and renewable energy engineers to provide dependable protection for high-voltage photovoltaic systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...