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MERSEN FUSE 1000VDC NH1 gPV 50A K bolted HP10NH1GPV50B
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.
£58.93
Why Choose the Mersen B1048663 HelioProtection Photovoltaic Fuse?
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.
Key Advantages
- Purpose-designed gPV fuse protection for photovoltaic DC systems.
- 50 A rated current for grouped solar strings and array circuits.
- 1000 V DC voltage rating for demanding photovoltaic installations.
- 50 kA breaking capacity for reliable fault interruption.
- Direct-mount bolted terminals provide secure electrical connections.
- Low power losses help maximise photovoltaic system efficiency.
Key Features
- Mersen HelioProtection® HP10NH photovoltaic fuse-link.
- Manufacturer reference: B1048663.
- Catalogue reference: HP10NH1GPV50B.
- 50 A rated current.
- 1000 V DC rated voltage.
- gPV full-range photovoltaic fuse characteristic.
- NH1 square-body fuse size.
- Direct-mount bolted terminals.
- Silver-plated copper terminal connections.
- IEC 60269-6 and UL 2579 compliant.
Reliable Protection for Photovoltaic Power Systems
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.
Typical Applications
- Grouped photovoltaic string protection.
- Solar array cable protection.
- PV combiner and re-combiner boxes.
- Solar inverter DC input protection.
- Commercial photovoltaic installations.
- Industrial renewable energy systems.
- Utility-scale solar farms.
Technical Specifications
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| Voltage | 1000 V | |
|---|---|---|
| Current | 50 A | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN), PV (gPV) | |
| Fuse Size | NH1 | |
| Fuse Class | gPV | |
| 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 |
Frequently Asked Questions
What is the Mersen B1048663 used for?
The Mersen B1048663 protects grouped photovoltaic strings, solar array cables and DC power equipment against overloads and short-circuit faults.
What is the current rating of the B1048663 fuse?
The B1048663 has a rated current of 50 A.
What voltage is the Mersen B1048663 rated for?
This photovoltaic fuse is rated for operation at up to 1000 V DC.
What does the gPV fuse characteristic mean?
A gPV fuse provides full-range protection specifically for photovoltaic systems, protecting against both overloads and short-circuit faults.
How is the Mersen B1048663 installed?
The fuse uses an NH1 square-body format with direct-mount bolted terminals for secure installation in compatible photovoltaic fuse bases.
Trusted Protection for Solar Power Systems
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.
