Mersen J1048670 HP10NH2GPV250B 250 A gPV photovoltaic fuse-link rated at 1000 V DC, with an NH2 body, DIN blade terminals and a 50 kA breaking capacity.
£183.68
The Mersen J1048670, catalogue reference HP10NH2GPV250B, is a high-performance 250 A photovoltaic fuse-link designed specifically to protect cables and electrical equipment in commercial and utility-scale solar power systems. Part of the proven Mersen HelioProtection® HP10NH series, it provides dependable overcurrent protection for photovoltaic circuits operating at up to 1000 V DC.
Photovoltaic installations can produce sustained reverse currents and unusual DC fault conditions that require dedicated protective devices. The J1048670 features a full-range gPV operating characteristic, enabling it to interrupt both lower-level photovoltaic overcurrents and high short-circuit currents before they damage array cables, combiner equipment or inverter inputs.
With its NH Size 2 construction, silver-plated copper DIN blade terminals and direct-mount format, this fuse-link is suitable for high-current renewable energy assemblies. Its 50 kA DC breaking capacity supports reliable fault interruption in demanding photovoltaic power distribution systems.
Large photovoltaic arrays require specialist DC protection because their fault-current behaviour differs from conventional AC distribution systems. A gPV fuse-link is designed to operate across the full range of photovoltaic fault currents, helping isolate a damaged circuit before excessive current affects connected cables and equipment.
The Mersen J1048670 is designed for main photovoltaic fuse applications, including the protection of grouped string cables when a short circuit occurs within an array. Its direct-mount DIN blade construction makes it suitable for integration into combiner boxes, inverter assemblies and high-current DC distribution equipment.
| Current | 250 A |
|---|---|
| Voltage | 000 V |
| Manufacturer | Mersen |
| Series | HelioProtection® HP10NH |
| Model | HP10NH2GPV250B |
| Item number | J1048670 |
| EAN | 3605340577914 |
| Product type | Photovoltaic NH fuse-link |
| Application class | gPV |
| Rated current | 250 A |
| Rated voltage | 1000 V DC |
| Maximum breaking capacity | 50 kA DC at 1000 V |
| Fuse size | NH2 |
| Mounting type | Direct mounting |
| Terminal type | DIN-type blades |
| Terminal material | Silver-plated copper |
| Frequency | 50 / 60 Hz |
| Dimensions (L × W × H) | Approx. 150.1 × 51.1 × 63 mm |
| Weight | Approx. 0.63 kg |
| Power dissipation at rated current | 31 W |
| Power dissipation at 0.7 × rated current | 12.9 W |
| Standards | IEC 60269-6 and UL 2579 |
| RoHS compliant | Yes |
| HS Code | 85361090 |
The J1048670 is used to protect high-current photovoltaic cables and associated DC equipment against overloads, reverse currents and short-circuit faults.
The Mersen J1048670 has a rated current of 250 A.
This photovoltaic fuse-link is rated for DC systems operating at up to 1000 V.
The J1048670 is an NH Size 2 fuse-link with DIN-type blade terminals for direct mounting.
The fuse has a maximum breaking capacity of 50 kA DC at 1000 V, allowing it to interrupt severe photovoltaic fault currents safely.
Mersen HelioProtection® fuse-links are widely used by solar engineers, panel builders and renewable energy contractors to provide dependable overcurrent protection for photovoltaic cables, combiner equipment and inverter circuits.
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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...