Eaton PV-315AF3 Photovoltaic Fuses - 50 kAIC
Part Number: PV-315AF3
Quick Summary
Eaton PV-315AF3 Photovoltaic fuses protect solar power systems, including inverters and PV arrays. This protection helps prevent costly downtime and equipment damage from overcurrents. The fuse carries a 315 A rating at 1000 Vdc and meets IEC 60269 and UL 2579 requirements, with CE marking and RoHS compliance for global deployment. For project success, reliable PV protection should integrate with standard disconnects and array configurations, while minimizing maintenance overhead and ensuring fast fault clearance.
Product Information
Extended Description
PV-315AF3 Eaton: Eaton Bussmann series photovoltaic fuses, 315 A, 1000 Vdc, Size 3, 49 Watt
Product Name
Eaton Bussmann series photovoltaic fuses
Catalog Number
PV-315AF3
EAN
5027590330213
Product Length/Depth
76 mm
Product Height
91.4 mm
Product Width
92 mm
Product Weight
0.001 g
Compliances
CE Marked RoHS Compliant EAC
Certifications
IEC 60269 UL 2579
Amperage Rating
315 A
Voltage rating
1000 Vdc
Interrupt rating
50 kAIC
Class
Class gPV
Pre arc (I2T)
27000
Watt losses
49 W
Application
Photovoltaic systems, inverters ,Photovoltaic array combiners and disconnects
Fuse type
PV-AF3
Fuse indicator
Centre fuse status indicator
Fuse size
3
Fitted with:
Bolt fixing
eaton-bussmann-series-photovoltaic-fuses-catalogue-ca135004en.pdf
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The PV-315AF3 offers high-current protection at 315 A, enabling safe operation of large PV strings and inverters while reducing nuisance trips and potential arc faults in utility-scale and commercial installations. This translates to improved uptime, lower operational risk, and streamlined protection coordination with other protection devices in the DC side of solar systems. With a 1000 Vdc rating and a 50 kAIC interrupt capacity, it supports expansive PV arrays and high fault current scenarios without compromising selectivity or safety in harsh outdoor environments. The centre fuse status indicator simplifies field maintenance by providing clear fuse health feedback, reducing troubleshooting time and enabling proactive replacements before a fault propagates. Watt losses of 49 W are kept to a minimum, helping to manage enclosure temperatures and preserve overall system efficiency in compact PV disconnects and combiner boxes. Bolt fixing and compact dimensions (76 mm length, 91.4 mm height, 92 mm width) deliver straightforward installation in standard enclosures and retrofit projects, accelerating deployment timelines. This device aligns with IEC 60269 and UL 2579 certification, while CE marking and RoHS compliance alleviate regulatory concerns and documentation burden for multi-region projects. In practice, the PV-315AF3 supports robust, compliant, and easily maintainable PV protection strategies across solar farms, rooftop arrays, and industrial solar installations.
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FAQs
The PV-315AF3 uses bolt fixing for secure mounting in standard PV disconnect enclosures and combiner boxes. Its compact dimensions (76 mm L x 91.4 mm H x 92 mm W) fit typical enclosure footprints, reducing the need for custom chassis. Before installation, verify compatibility with Eaton Bussmann PV fuse accessories and ensure the mounting hardware provides proper isolation and ventilation to manage heat.
PV-315AF3 is rated for 315 A and 1000 Vdc, with a 50 kAIC interrupt rating and Class gPV designation. It incorporates a centre fuse status indicator for health checks, has pre-arc I2T of 27000, and consumes 49 W in heat loss. These specs support safe operation across large PV strings, inverters, and array combiners while aiding protection coordination.
Yes. The 315 A / 1000 Vdc rating and 50 kAIC interrupt capability are designed for high-current PV applications, including large utility-scale farms and commercial rooftops. Its compatibility with bolt-fixed mounting and standard disconnects simplifies integration into existing protection schemes without sacrificing safety or performance.
PV-315AF3 carries IEC 60269 and UL 2579 certifications, with CE marking and RoHS compliance. These align with global safety, reliability, and environmental requirements, helping streamline procurement, documentation, and cross-border project approvals.
Using PV fuses like the PV-315AF3 reduces risk of equipment damage from overcurrent events, lowers downtime, and simplifies maintenance with a centre fuse status indicator. These factors translate into fewer field visits for fuse diagnostics, faster fault isolation, and improved overall system uptime for solar installations.