Mersen HP10M12 HelioProtection gPV photovoltaic fuse link rated at 12 A and 1000 V DC, with a compact 10 x 38 mm body and ferrule terminals for PV string protection.
£8.23
The Mersen HP10M12 is a compact, high-performance gPV photovoltaic fuse link developed specifically to protect solar PV circuits against overcurrents and short circuits. As part of the proven Mersen HelioProtection® HP10M series, it provides dependable protection for photovoltaic string wiring in residential, commercial, industrial and utility-scale solar installations.
Rated at 12 A and 1000 V DC, the HP10M12 is engineered for the distinctive electrical conditions found in photovoltaic systems. Its full-range gPV operating characteristic allows the fuse to interrupt low-level and high-level DC fault currents, helping protect PV modules, cables, combiner boxes and inverter inputs from potentially damaging overcurrents.
The HP10M12 has a compact 10 × 38 mm midget fuse format with ferrule terminals for installation in compatible clip-mounted fuse holders. Its robust construction provides excellent resistance to repeated temperature and current cycling, supporting reliable long-term performance in demanding solar energy applications.
Solar arrays can continue generating DC current whenever sufficient light is available, even when a fault is present. A correctly selected gPV fuse safely disconnects a faulty string before excessive current damages photovoltaic modules, cables, connectors, combiner equipment or inverter inputs.
The Mersen HP10M12 is designed to withstand the repeated temperature and current variations commonly experienced by outdoor solar installations. Its specialist photovoltaic operating characteristic and compact format make it a reliable choice for protecting individual strings within modern 1000 V DC PV systems.
| Current | 12 A |
|---|---|
| Voltage | 000 V |
| Manufacturer | Mersen |
| Series | HelioProtection® HP10M |
| Model | HP10M12 |
| Product type | Photovoltaic fuse link |
| Fuse utilisation category | gPV |
| Rated current | 12 A |
| Rated voltage | 1000 V DC |
| Current type | DC |
| Fuse format | Midget cylindrical fuse |
| Fuse dimensions | 10 × 38 mm |
| Terminal type | Ferrule |
| Mounting method | Clip mounting in a compatible fuse holder |
| Breaking capacity | Up to 50 kA DC |
| Protection application | Photovoltaic string wiring |
| Standards | IEC 60269-6 and UL 2579 |
| Compliance | RoHS compliant |
| HS Code | 85361050 |
| Country of Manufacture | Mexico |
The Mersen HP10M12 protects photovoltaic string wiring, combiner boxes, inverter inputs and other solar DC circuits against overcurrents and short circuits.
The fuse has a rated current of 12 A and a rated operating voltage of 1000 V DC.
The HP10M12 is a compact 10 × 38 mm midget cylindrical fuse with ferrule terminals.
The gPV classification identifies a full-range fuse specifically designed to protect photovoltaic circuits against both overload and short-circuit fault currents.
The fuse has ferrule terminals and is installed in a compatible 10 × 38 mm clip-mounted photovoltaic fuse holder rated for the system voltage and current.
Mersen HelioProtection® photovoltaic fuses are widely used by solar installers, renewable energy engineers and panel builders to provide reliable DC circuit protection in modern 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...
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...