Solar PV Protection

Explore our comprehensive range of European standard DC fuses designed for various critical applications.
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DC Fuse In PV Application Challenges We Help You Solve
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High DC Voltage Stress in 1500V PV Systems

1500V DC photovoltaic systems place extreme demands on fuse performance. Standard fuses often experience overheating, rising power loss, and performance degradation under continuous high-voltage stress, leading to unreliable protection.

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Extreme Temperature Cycling in PV Arrays

PV installations are exposed to harsh day-night temperature fluctuations (-40°C to 90°C). Thermal cycling can cause internal insulation fatigue, micro-cracks, and weakened contact stability inside the fuse.

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High Fault Current & DC Arc Suppression Requirements

DC arcs are difficult to extinguish and can cause severe damage in high-current PV strings. Many general-purpose fuses fail to safely interrupt large DC fault currents, resulting in terminal damage or string shutdowns.

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Power Loss & Efficiency Challenges in Large PV Plants

Common issues include:
Excessive temperature rise inside combiner boxes
Derating of PV strings due to fuse power loss
Reduced overall energy yield

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AITE Solution
  • Low-power-loss fuse element design
  • Silver-alloy fuse link for improved high-voltage stability
  • Fully tested to UL2579 / IEC60269-6
  • Stable breaking performance even under high-temperature conditions
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AITE Solution
  • High-temperature ceramic body with reinforced end-cap structure
  • Verified for more than 2,000 thermal cycles
  • Long-term durability in outdoor environments
  • Reliable long-life performance without premature aging
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AITE Solution
  • Breaking capacity up to 50kA
  • CFD-optimized fuse link geometry for rapid arc suppression
  • Reduced arc propagation risk to protect inverters and combiner boxes
  • Designed for high-capacity and high-fault-current PV systems
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AITE Solution
  • Low-power-loss fuse link reduces energy loss by 18%–30%
  • Lower temperature rise improves module and inverter efficiency
  • Helps prevent thermal alarms and unexpected shutdowns
  • Supports high-current PV strings
Combiner Box:One-stop convergence solution from rooftop to ground-mounted power station
ATPV-30D FUSE
DC1000V
ATSPV-C40 SPD
DC1000V
ATB-63 PV MCB
DC500/800/1000V
ATPV-63LDL FUSE
DC1500V
ATDM5DC MCCB
DC1500V
Featured High-Capacity PV Fuse Series
ATPV-NH2LD 1500VDC NH2L PV Fuse Holder
ATPV-NH2XLD
  • Voltage:1500Vdc
  • Current:400A ampere ratings
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ATPV-NH3L 1500VDC Solar PV Fuse Link
ATPV-NH3XL
  • Voltage:1500Vdc
  • Current:125A-630A
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ATPV-NH3L 1500VDC Solar PV Fuse Link
ATPV-NH3LD
  • Voltage:1500Vdc
  • Current:630A ampere ratings
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ATPV-63LD 1500VDC 50A 10x85mm and 14x85mm Solar PV DIN Rail Fuse Holder
ATPV-63LD
  • Voltage:1000Vdc
  • Current:50A ampere ratings
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ATPV-63LD 1500VDC 50A 10x85mm And 14x85mm Solar PV DIN Rail Fuse Holder
ATPV-63LDL
  • Voltage:1500Vdc
  • Current:50A ampere ratings
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ATPV-80D 1500VDC 22×58mm PV Fuse Holder
ATPV-80D 22×58mm
  • Voltage:1500Vdc
  • Current:80A ampere ratings
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DC Miniature Circuit Breaker
ATB-63
  • Voltage:1000Vdc
  • Current:63A Rated currents
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1000V/1500v pv fuse connector
CONNECTOR WITH FUSE LINK 10x38
  • Voltage:1000Vdc/1500Vdc
  • Current:1A- 30A
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1500vdc pv fuse connector
CONNECTOR WITH FUSE LINK 10x38
  • Voltage:1000Vdc/1500Vdc
  • Current:1A -30A
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PV BRANCH CONNECGTOR WITH FUSE
2T1-FUSE 10X85
  • Voltage:1000Vdc/1500Vdc
  • Current: 30A / ( Fuse 20A)
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DC Miniature Circuit Breaker
ATB-125
  • Voltage:1000Vdc
  • Current:125A Rated currents
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DC Surge Prolective Device
ATSPV-40
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Why Leading PV Fuse Manufacturers Choose AITE
· Higher System Eficiency
· Superior Reliability
· Global Market Read
· Extended Lifetime

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