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Mersen HP6J300
Fuse 600VDC 300A gPV Blade Mount HP6J - Photovoltaic Series
Product Description
The HP6J fuse series is specifically intended for DC Recombiner Boxes, providing essential protection for 600VDC photovoltaic systems. With a maximum operating temperature of 80 °C and a minimum storage temperature of -25 °C, this fuse is constructed to endure continuous temperature and current cycling. The fuse supports a rated current of 300 A and features a low minimum breaking capacity of 1.35 times the rated current, ensuring safe circuit interruption during typical low fault current conditions encountered in photovoltaic arrays. Its silver-plated copper connection terminals and GMG insulating material enhance reliability and performance. The HP6J can be mounted using clips or bolted connections, making it versatile for various installation needs. This product, part of the HelioProtection® line, is essential for safeguarding both off-grid and grid-tied photovoltaic systems from unexpected ground and line faults.
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Offer details
- Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
- Availability:
- On requestLead time to be confirmed
- Warranty:
- 12 months
- Condition:
- New Factory Sealed
Specifications
- Brand
- Mersen
- Max Operating Temp
- 80 °C
- Max Storage Temp
- 80 °C
- Min Storage Temp
- -25 °C
- Ampere Rating
- 300 A
- Rated Voltage Dc Ul
- 600 V
- Ac Max I R Breaking Capacity I1
- 10 kA
Available Offers
(1)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
| Condition New Factory Sealed | Availability On requestLead time to be confirmed | Supplier | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Mersen HP6J300, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 19-09-2026

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