Mersen Y1008755 DC10HEL12C16 HelioProtection cylindrical photovoltaic fuse-link with a 16 A rating, 1200 V DC rating, 12 kA breaking capacity and gPV operating characteristic.
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Why Choose the Mersen Y1008755 HelioProtection® Photovoltaic Fuse?
The Mersen Y1008755 is a compact, high-performance cylindrical photovoltaic fuse-link designed specifically to protect solar PV strings and arrays against ground faults, line faults and reverse-current conditions. Part of the proven Mersen HelioProtection® DC10HEL series, it provides dependable full-range gPV protection for high-voltage photovoltaic installations.
Its enhanced internal construction is engineered to withstand the continuous current and temperature cycling commonly experienced in solar power systems. The fuse can safely interrupt fault currents from approximately 1.30 times its rated current, helping protect photovoltaic modules, cables, combiner equipment and inverter inputs under the low fault-current conditions typical of PV arrays.
With a rated current of 16 A, a voltage rating of 1200 V DC and a compact cylindrical body measuring approximately 10.3 × 84 mm, the Y1008755 is suitable for clip mounting in compatible photovoltaic fuse holders. Its 12 kA DC breaking capacity makes it an effective protection solution for grid-connected and off-grid solar installations.
Key Advantages
Designed specifically for photovoltaic string and array protection.
16 A rated current for appropriately sized PV circuits.
1200 V DC voltage rating for high-voltage solar systems.
gPV full-range protection against photovoltaic fault currents.
Enhanced resistance to repeated temperature and current cycling.
Key Features
Mersen HelioProtection® DC10HEL series.
Catalogue number: DC10HEL12C16.
Item number: Y1008755.
16 A rated current.
1200 V DC rated voltage.
gPV operating characteristic.
Compact cylindrical fuse-link construction.
Silver-plated copper terminals for clip mounting.
Reliable Protection for Photovoltaic Strings and Arrays
Photovoltaic systems can generate sustained reverse currents and relatively low-level DC faults that conventional industrial fuse-links may not safely interrupt. A correctly selected gPV fuse isolates these abnormal currents before excessive heat or electrical energy damages photovoltaic modules, conductors, connectors or associated distribution equipment.
The Mersen DC10HEL series combines low fault-current interruption with durable construction and resistance to repeated thermal cycling. These characteristics make the Y1008755 suitable for photovoltaic installations where dependable protection, long service life and consistent electrical performance are essential.
Typical Applications
Photovoltaic string and array protection.
Solar combiner boxes.
Solar inverter DC input circuits.
Commercial rooftop photovoltaic systems.
Utility-scale solar installations.
Grid-connected and off-grid PV systems.
Technical Specifications
Current
16 A
Voltage
200 V
Manufacturer
Mersen
Series
HelioProtection® DC10HEL
Model
Y1008755
Catalogue number
DC10HEL12C16
Product type
Photovoltaic fuse-link
Operating characteristic
gPV
Rated current
16 A
Rated voltage
1200 V DC
Maximum breaking capacity
12 kA DC at 1200 V, L/R = 2 ms
Minimum breaking current
1.30 × rated current
Fuse format
Cylindrical
Product diameter
10.3 mm
Product length
84 mm
Mounting method
Clip mounting
Terminal type
Cylindrical
Terminal material
Silver-plated copper
Clearing I²t at rated voltage
640 A²s
Melting I²t
338 A²s
Power dissipation at rated current
3.5 W
Power dissipation at 0.7 × rated current
1.4 W
Product weight
Approx. 0.014 kg
RoHS compliance
Compliant
EAN / UPC
3605340494440
Frequently Asked Questions
What is the Mersen Y1008755 used for?
The Mersen Y1008755 protects photovoltaic strings, arrays and associated DC equipment against ground faults, line faults, reverse currents and short circuits.
What is the current rating of this fuse?
The Y1008755 has a rated current of 16 A.
What voltage is the Y1008755 rated for?
This photovoltaic fuse-link is rated for solar circuits operating at up to 1200 V DC.
What are the dimensions of this fuse?
The Y1008755 has a cylindrical body measuring approximately 10.3 mm in diameter and 84 mm in length.
What does the gPV classification mean?
The gPV classification identifies a full-range fuse-link designed specifically to protect photovoltaic circuits against overload and short-circuit fault currents.
Trusted by Solar and Electrical Professionals Worldwide
Mersen HelioProtection® fuse-links are widely specified by solar installers, panel builders and renewable energy engineers for dependable photovoltaic circuit protection in grid-connected and off-grid systems.
Current
16 A
Voltage
200 V
Manufacturer
Mersen
Series
HelioProtection® DC10HEL
Model
Y1008755
Catalogue number
DC10HEL12C16
Product type
Photovoltaic fuse-link
Operating characteristic
gPV
Rated current
16 A
Rated voltage
1200 V DC
Maximum breaking capacity
12 kA DC at 1200 V, L/R = 2 ms
Minimum breaking current
1.30 × rated current
Fuse format
Cylindrical
Product diameter
10.3 mm
Product length
84 mm
Mounting method
Clip mounting
Terminal type
Cylindrical
Terminal material
Silver-plated copper
Clearing I²t at rated voltage
640 A²s
Melting I²t
338 A²s
Power dissipation at rated current
3.5 W
Power dissipation at 0.7 × rated current
1.4 W
Product weight
Approx. 0.014 kg
RoHS compliance
Compliant
EAN / UPC
3605340494440
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
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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...