Mersen DC122GPV11C315P 315 A gPV square-body photovoltaic fuse-link rated at 1100 V DC with a 100 kA breaking capacity.
£324.73
The Mersen M1025397, manufacturer reference DC122GPV11C315P, is a high-performance 315 A photovoltaic fuse-link developed specifically to protect photovoltaic cables and equipment in commercial and utility-scale solar power installations. As part of the proven Mersen HelioProtection® DC120-123 series, it is designed for photovoltaic systems operating at up to 1100 V DC.
Unlike conventional industrial fuses, the DC120-123 series has been engineered specifically for photovoltaic applications where sustained reverse currents and unique DC fault conditions require dedicated protection. Featuring a full-range gPV operating characteristic, the M1025397 safely interrupts both low-level overcurrents and high-energy short-circuit faults, helping protect PV group cables, combiner boxes and inverter DC inputs.
With a 315 A current rating, 1100 V DC operating voltage and a 100 kA DC breaking capacity, this Size 122 square-body fuse-link delivers dependable overcurrent protection for demanding renewable energy installations while offering excellent thermal cycling performance and long service life.
Large photovoltaic arrays require dedicated DC protection because their electrical fault behaviour differs significantly from conventional AC distribution systems. The HelioProtection® DC120-123 range has been engineered specifically to provide dependable protection against reverse currents and short-circuit faults throughout modern photovoltaic installations.
The M1025397 helps isolate faulty photovoltaic groups before excessive current can damage cables, connectors, combiner equipment or inverter electronics. Its Size 122 square-body construction makes it particularly suitable for high-current DC protection within utility-scale renewable energy systems.
| Current | 315 A |
|---|---|
| Voltage | 100 V |
| Manufacturer | Mersen |
| Series | HelioProtection® DC120-123 |
| Model | DC122GPV11C315P |
| Item number | M1025397 |
| EAN | 3605340526530 |
| Product type | Photovoltaic square-body fuse-link |
| Application class | gPV |
| Rated current | 315 A |
| Rated voltage | 1100 V DC |
| Breaking capacity | 100 kA DC |
| Minimum breaking current | 1.35 × In |
| Fuse size | 122 |
| Body style | Square body |
| Terminal type | Plain blade |
| Power dissipation at rated current | 63.9 W |
| Power dissipation at 0.7 × rated current | 26.1 W |
| Standards | IEC 60269-1 and IEC 60269-6 |
The M1025397 is designed to protect photovoltaic cables and associated DC equipment against overloads and short-circuit faults in solar power systems.
The Mersen M1025397 has a rated current of 315 A.
This photovoltaic fuse-link is rated for systems operating at up to 1100 V DC.
The M1025397 is supplied as a Size 122 square-body fuse-link with plain blade terminals.
The fuse complies with IEC 60269-1 and IEC 60269-6 standards for photovoltaic fuse protection.
Mersen HelioProtection® photovoltaic fuse-links are trusted by renewable energy engineers, EPC contractors and solar installers to provide dependable overcurrent 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...