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MERSEN FUSE 1000VDC T123 gPV 400A PB DC123GPV10C400P
Mersen DC123GPV10C400P 400 A gPV square-body photovoltaic fuse-link rated at 1000 V DC with a 100 kA breaking capacity.
£206.62
Why Choose the Mersen N1025398 Photovoltaic Fuse-Link?
The Mersen N1025398, manufacturer reference DC123GPV10C400P, is a high-performance 400 A photovoltaic fuse-link specifically designed to protect photovoltaic cables and equipment in commercial and utility-scale solar power installations. Part of the proven Mersen HelioProtection® DC120-123 series, it is engineered for photovoltaic systems operating at up to 1000 V DC.
Unlike conventional industrial fuses, the DC120-123 series has been developed specifically for photovoltaic applications where sustained reverse currents and unique DC fault conditions require dedicated protection. Featuring a full-range gPV operating characteristic, the N1025398 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 400 A current rating, 1000 V DC operating voltage and a 100 kA DC breaking capacity, this Size 123 square-body fuse-link provides dependable overcurrent protection for demanding renewable energy installations while delivering excellent long-term reliability.
Key Advantages
- Designed specifically for 1000 V DC photovoltaic systems.
- 400 A rated current for high-power solar installations.
- Full-range gPV protection against photovoltaic overcurrents.
- 100 kA DC breaking capacity.
- Excellent resistance to photovoltaic temperature cycling.
- Size 123 square-body construction.
- Suitable for PV combiner boxes, inverter protection and array cable protection.
Key Features
- Mersen HelioProtection® DC120-123 series.
- Manufacturer reference: DC123GPV10C400P.
- Item number: N1025398.
- 400 A rated current.
- 1000 V DC rated voltage.
- 100 kA DC interrupting capacity.
- Full-range gPV utilisation category.
- Size 123 square-body fuse-link.
- Plain blade terminal configuration.
- Designed specifically for photovoltaic cable protection.
Reliable Protection for High-Power Photovoltaic Systems
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 N1025398 helps isolate faulty photovoltaic groups before excessive current can damage cables, connectors, combiner equipment or inverter electronics. Its Size 123 square-body construction makes it particularly suitable for high-current DC protection within utility-scale renewable energy systems.
Typical Applications
- Utility-scale photovoltaic installations.
- Commercial solar power systems.
- Photovoltaic group cable protection.
- PV combiner and recombiner boxes.
- Central inverter DC input protection.
- High-current DC distribution assemblies.
- Renewable energy infrastructure.
Technical Specifications
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| Voltage | 1000 V | |
|---|---|---|
| Current | 400 A | |
| Device Type | Fuse link | |
| Fuse Type | PV (gPV) | |
| Fuse Class | gPV | |
| Manufacturer | Mersen | |
| Series | HelioProtection® DC120-123 | |
| Model | DC123GPV10C400P | |
| Item number | N1025398 | |
| EAN | 3605340526547 | |
| Product type | Photovoltaic square-body fuse-link | |
| Application class | gPV | |
| Rated current | 400 A | |
| Rated voltage | 1000 V DC | |
| Breaking capacity | 100 kA DC | |
| Minimum breaking current | 1.35 × In | |
| Fuse size | 123 | |
| Body style | Square body | |
| Terminal type | Plain blade | |
| Power dissipation at rated current | 79.3 W | |
| Power dissipation at 0.7 × rated current | 32.4 W | |
| Standards | IEC 60269-1 and IEC 60269-6 |
Frequently Asked Questions
What is the Mersen N1025398 used for?
The N1025398 is designed to protect photovoltaic cables and associated DC equipment against overloads and short-circuit faults in solar power systems.
What is the current rating of this fuse?
The Mersen N1025398 has a rated current of 400 A.
What voltage is the fuse designed for?
This photovoltaic fuse-link is rated for systems operating at up to 1000 V DC.
What fuse size is the N1025398?
The N1025398 is supplied as a Size 123 square-body fuse-link with plain blade terminals.
What standards does this fuse comply with?
The fuse complies with IEC 60269-1 and IEC 60269-6 standards for photovoltaic fuse protection.
Trusted by Solar Energy Professionals
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.
