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MERSEN FUSE 1250VDC NH1XL gPV 125A HP12NH1XLGPV125
Mersen G1039744 HP12NH1XLGPV125 NH1XL gPV photovoltaic fuse rated at 125 A and 1250 V DC with plain blade terminals for clip mounting.
This product has been discontinued
A direct replacement is available below.
Replacement product
MERSEN FUSE 1500VDC NH3L gPV 250A K bolted HP15NH3LGPV250B
SKU: W1048681
£190.00 ex VAT
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Why Choose the Mersen G1039744 HP12NH1XLGPV125 Photovoltaic Fuse?
The Mersen G1039744 is a premium NH1XL gPV photovoltaic fuse-link developed specifically to provide reliable overcurrent protection for next-generation solar power systems operating at up to 1250 V DC. As part of the advanced Mersen HelioProtection® HP12NHXL range, it protects photovoltaic strings, combiner boxes, inverter inputs and associated DC cabling against overloads and short circuits.
Designed for modern high-voltage photovoltaic installations, the HP12NHXL series offers full-range gPV protection in accordance with international IEC and UL standards. Its robust NH1XL construction, plain blade terminals and high interrupting capability ensure dependable performance in demanding commercial and utility-scale renewable energy applications.
With a 125 A current rating, 1250 V DC voltage rating and 50 kA breaking capacity, the Mersen G1039744 delivers reliable protection whilst supporting the latest high-efficiency photovoltaic system architectures.
Key Advantages
- Purpose-designed gPV fuse-link for photovoltaic protection.
- 125 A rated current for high-capacity solar circuits.
- 1250 V DC voltage rating for modern PV systems.
- 50 kA DC breaking capacity for dependable fault interruption.
- NH1XL plain blade construction for clip mounting.
- Low power losses improve overall photovoltaic efficiency.
- Complies with IEC 60269-6 and UL 2579 photovoltaic standards.
Key Features
- Manufacturer: Mersen.
- Series: HelioProtection® HP12NHXL.
- Catalogue number: HP12NH1XLGPV125.
- Manufacturer part number: G1039744.
- Product type: NH1XL gPV photovoltaic fuse-link.
- Rated current: 125 A.
- Rated voltage: 1250 V DC.
- Fuse characteristic: gPV.
- Plain blade terminals for clip mounting.
- Designed specifically for photovoltaic array protection.
Reliable Protection for High-Voltage Solar Installations
Purpose-designed photovoltaic fuse-links provide essential protection against overloads and short circuits within DC solar arrays. Correctly specified gPV fuses protect photovoltaic modules, combiner boxes, inverter equipment and associated cabling whilst improving the safety and reliability of renewable energy systems.
The Mersen HelioProtection® HP12NHXL series has been engineered for modern 1250 V DC photovoltaic installations, delivering low power losses, high interrupting capability and dependable long-term performance in demanding commercial and utility-scale solar projects.
Typical Applications
- Photovoltaic string protection.
- Solar combiner boxes.
- Inverter DC input protection.
- Commercial rooftop photovoltaic systems.
- Utility-scale solar farms.
- Renewable energy distribution equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 1250 V | |
|---|---|---|
| Current | 125 A | |
| Device Type | Fuse link | |
| Fuse Type | PV (gPV) | |
| Fuse Class | gPV | |
| Manufacturer | Mersen | |
| Series | HelioProtection® HP12NHXL | |
| Manufacturer part number | G1039744 | |
| Catalogue number | HP12NH1XLGPV125 | |
| Product type | NH1XL gPV photovoltaic fuse-link | |
| Rated current | 125 A | |
| Rated voltage | 1250 V DC | |
| Fuse characteristic | gPV | |
| Fuse size | NH1XL | |
| Terminal style | Plain blade | |
| Mounting | Clip mounting | |
| Breaking capacity | 50 kA DC | |
| Power dissipation at rated current | 29 W | |
| Power dissipation at 70% rated current | 11.5 W | |
| Dimensions (L × W × H) | Approx. 125.5 × 39.5 × 52.5 mm | |
| Weight | Approx. 0.44 kg | |
| Standards | IEC 60269-6, UL 2579 | |
| EAN | 3605340552218 |
Frequently Asked Questions
What is the Mersen G1039744 used for?
The Mersen G1039744 protects photovoltaic DC circuits against overloads and short circuits in commercial and utility-scale solar installations.
What is the current rating of this fuse?
This fuse has a 125 A rated current.
What voltage is this fuse designed for?
The HP12NH1XLGPV125 is designed for photovoltaic systems operating at up to 1250 V DC.
What is the breaking capacity of this fuse?
The fuse provides a maximum 50 kA DC breaking capacity for dependable interruption of high DC fault currents.
Which standards does this fuse comply with?
The fuse complies with IEC 60269-6 and UL 2579 photovoltaic fuse standards.
Trusted by Renewable Energy Professionals
Mersen HelioProtection® photovoltaic fuse-links are trusted worldwide by solar installers, EPC contractors and renewable energy engineers for dependable protection of commercial and utility-scale photovoltaic systems.
