Eaton PV-400AF3 PV Fuse - 50 kAIC Class gPV
Part Number: PV-400AF3
Quick Summary
PV fuse protects photovoltaic arrays and inverters by interrupting overcurrent in solar power installations. Engineers often struggle with reliable protection at high DC voltages in outdoor, weather-exposed installations. This Eaton PV-400AF3 combines CE marking, RoHS compliance, and EAC recognition with UL 2579 performance to meet global solar protection standards. In practice, installers gain installation efficiency, reliable protection for large solar arrays, and straightforward compliance reporting when using a fuse with a center status indicator and bolt-fix mounting. The result is reduced downtime, simpler preventive maintenance, and better visibility into circuit health for PV inverters and combiner boxes. That translates to measurable uptime gains and lower total cost of ownership.
Product Information
Extended Description
PV-400AF3 Eaton: Eaton Bussmann series photovoltaic fuses, 400 A, 1000 Vdc, Size 3, 52 Watt
Product Name
Eaton Bussmann series photovoltaic fuses
Catalog Number
PV-400AF3
EAN
5027590506199
Product Length/Depth
92 mm
Product Height
91.4 mm
Product Width
76 mm
Product Weight
1496 g
Compliances
CE Marked RoHS Compliant EAC
Certifications
IEC 60269 UL 2579
Amperage Rating
400 A
Voltage rating
1000 Vdc
Interrupt rating
50 kAIC
Class
Class gPV
Pre arc (I2T)
61500
Watt losses
52 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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Feature: High current and voltage ratings. The PV-400AF3 delivers 400 A at 1000 Vdc with a 50 kAIC interrupt rating, enabling robust protection for large-scale PV systems. Business impact: safeguards valuable inverters, DC cables, and combiners from catastrophic faults, reducing repair time and equipment downtime. Application: Suitable for photovoltaic arrays, inverters, and disconnect assemblies where high-energy DC faults are a risk. Feature: Class gPV and Pre-arc performance. With Class gPV construction and a Pre-arc (I2T) of 61500, the device minimizes arcing energy during interruption, improving fault clearing reliability. Business impact: lowers the likelihood of secondary damage and fire propagation, supporting safer solar installations. Application: Critical in utility-scale and commercial PV installations where stringent arc mitigation is required.Feature: Centre fuse status indicator. The integrated status indicator provides at-a-glance health checks without removing the fuse, cutting maintenance cycles. Business impact: reduces field service time and raises uptime visibility for protective circuits. Application: PV array disconnects, combiner boxes, and maintenance routines where quick verification matters.Feature: Bolt fixing and compact size. Fitted with bolt fixing and a practical footprint for mounting in enclosures or on bus bars. Business impact: simplifies integration during installation, saving hardware costs and time. Application: Enclosures, switchgear panels, and outdoor protection installations.Feature: Compliance and certifications. CE Marked, RoHS compliant, EAC recognized, with UL 2579 and IEC 60269 alignment. Business impact: ensures regulatory acceptance across global markets and smoother supplier qualification. Application: Projects in Europe, Asia, and the Americas requiring formal certifications.Feature: Efficiency and thermal performance. Watt losses are rated at 52 W, contributing to predictable thermal management in protected DC circuits. Business impact: minimizes stray heat in PV j-boxes and along DC runs, preserving system efficiency. Application: Long-wiring runs in photovoltaic systems where heat buildup matters.
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FAQs
PV-400AF3 uses bolt fixing for secure mounting in enclosures, switchgear, or PV array disconnects. Its compact Size 3 form factor supports tight installation spaces while maintaining a clear status view via the centre fuse indicator. Ensure mounting on a flat, vibration-free surface and proper tightening to maintain electrical integrity and ease of future maintenance.
Key parameters include 400 A amperage rating, 1000 Vdc voltage rating, and a 50 kAIC interrupt capacity. PV-400AF3 also features a Centre fuse status indicator and Pre-arc I2T of 61500, enabling reliable fault interruption with minimized arcing. Together, these specs deliver robust protection for high-energy PV arrays and inverters.
Yes, its 400 A/1000 Vdc rating and 50 kAIC make it appropriate for utility-scale or commercial PV systems. It complies with CE, RoHS, and EAC, and aligns with IEC 60269 and UL 2579 standards, ensuring regulatory acceptance across major markets and smoother procurement for certified solar projects.
The PV-400AF3 is CE marked, RoHS compliant, and EAC recognized, with UL 2579 and IEC 60269 certifications. These mark the fuse as suitable for global PV installations, helping with supplier qualification, import approvals, and adherence to electrical protection regulations in diverse jurisdictions.
The centre fuse status indicator reduces diagnostic time by allowing quick health checks, while bolt-fixed mounting simplifies replacement. Combined with high interrupt reliability, this reduces downtime and maintenance costs in large solar deployments, contributing to a favorable total cost of ownership and improved system uptime.