Mersen K1025395 DC121GPV12C200P 200 A gPV photovoltaic square-body fuse-link rated at 1200 V DC, with a Size 121 body and plain blade terminals.
£232.98
The Mersen K1025395, manufacturer reference DC121GPV12C200P, is a high-performance 200 A photovoltaic fuse-link designed to protect cables and electrical equipment within large commercial and utility-scale solar installations. Part of the specialist Mersen HelioProtection® DC120-123 series, it is suitable for photovoltaic circuits operating at up to 1200 V DC.
Photovoltaic arrays can generate sustained reverse currents and low-level DC faults that conventional industrial fuses may not interrupt effectively. The K1025395 features a full-range gPV operating characteristic, enabling it to provide dedicated protection against the particular overcurrent and short-circuit conditions found in solar power systems.
With its Size 121 square-body construction and plain blade terminals, the K1025395 is designed for secure installation within compatible fuse bases and high-current DC assemblies. Its robust construction provides dependable performance during the repeated electrical loading and temperature cycles experienced by photovoltaic installations.
Large photovoltaic arrays require dedicated DC overcurrent protection because their electrical fault behaviour differs from conventional AC distribution systems. A gPV fuse-link is designed to interrupt the complete range of photovoltaic fault currents, including lower-level reverse currents that can remain present for extended periods.
The Mersen K1025395 helps isolate a faulty PV group before excessive current damages cables, modules, connectors or downstream equipment. Its high-current Size 121 construction makes it particularly suitable for combiner assemblies, inverter input circuits and central DC distribution systems.
| Current | 200 A |
|---|---|
| Voltage | 200 V |
| Manufacturer | Mersen |
| Brand | HelioProtection® |
| Series | DC120-123 |
| Model | DC121GPV12C200P |
| Item number | K1025395 |
| EAN | 3605340526516 |
| Product type | Photovoltaic square-body fuse-link |
| Application class | gPV |
| Rated current | 200 A |
| Rated voltage | 1200 V DC |
| Fuse size | 121 |
| Body construction | Square body |
| Terminal type | Plain blade |
| Mounting type | Compatible fuse base or clip mounting |
| Fuse operation | Single use |
| Approximate weight | 1.03 kg |
| Standards | IEC 60269-1 and IEC 60269-6 |
The K1025395 protects grouped photovoltaic cables and associated DC equipment against reverse currents, overloads and short-circuit faults.
The Mersen K1025395 has a rated current of 200 A.
The K1025395 is designed for photovoltaic circuits operating at up to 1200 V DC.
This model is a Size 121 square-body fuse-link designed for high-current photovoltaic protection.
The gPV classification indicates that the fuse provides full-range protection against overcurrents and short circuits in photovoltaic circuits.
Mersen HelioProtection® fuse-links are used by solar engineers, panel builders and renewable energy contractors to provide dependable overcurrent protection for high-voltage photovoltaic installations.
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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...