News & Blogs
Technical notes from the factory floor
Selection guidance, structural design decisions, project learnings and export documentation practice — written by the engineers who build the parts.
Technical GuideHow To Choose The Right Inline Fuse Rating For A PV String
The core formula every PV designer needs: minimum fuse rating >= module Isc x 1.56, plus the three golden rules that keep the string compliant with NEC and IEC.
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InstallationInstalling MC4 Inline Fuse Connectors In 1500V PV Systems
A full workflow for 1500VDC installations — pre-checks, tooling, seven installation steps, safety considerations and the five mistakes that cause most connector fires.
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SolutionsCoastal Sites: Protecting MC4 Inline Fuse Connectors From Salt Mist
IP68 handles rain and immersion, but salt fog and wave impact are a different problem. Three ways to add a second line of defence on seaside installations.
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SafetyHow To Avoid PV String Burnout Caused By Wrong Fuse Selection
Three real fire case studies, the derating and installation practice that prevents them, and a post-installation verification checklist for gPV overcurrent protection.
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Technical GuideWhat Is Breaking Capacity, And Why 1500V Systems Depend On It
Breaking capacity is the last line of defence against a DC fire. How voltage, current type and circuit time constant change it, and what to specify at string and combiner level.
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Technical GuidePre-Arcing I²t Explained For PV Fuse Selection
Melting I²t, arcing I²t and total I²t — what the numbers physically mean and how they drive discrimination between an inline fuse and the upstream protective device.
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Technical GuidePre-Arcing I²t Selection Guide And Buyer Talking Points
A ready-to-send definition of pre-arcing versus arcing I²t, its two core functions in DC systems, and how to use it when specifying inline fuses against upstream protection.
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Technical Guide1500V vs 1000V DC Fuse Selection For Modern PV Arrays
1500V systems have become mainstream, but a large existing base still runs at 1000V. Here is how to match gPV fuse ratings, breaking capacity and holder formats to each voltage class.
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EngineeringInside Our IP68 Waterproof Design For Outdoor PV Connectors
Double-layer sealing, UL94-V0 housings and -40℃~+85℃ material matching — the structural decisions that keep DC circuits stable through rain, snow, salt mist and desert heat.
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SolutionsBIPV Projects: Custom Harness & Junction Box Design Notes
Thin-film module edge wiring, hidden cable routing and facade installation constraints demand structural design that standard catalogue parts cannot deliver.
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Technical GuideMC4-EVO2 Compatibility Explained For EPC Procurement Teams
Our inline fuse connector housing mates with Stäubli MC4-EVO2 and generic MC4 interfaces without adapters. Here is what that means for your bill of materials.
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TradeExport Documentation Checklist For Overseas PV Tenders
Invoice, packing list, TÜV/CE test reports and certificates of conformity — the paperwork set that clears customs and satisfies EPC tender requirements.
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SolutionsDesert And Floating PV: Material Choices That Survive The Site
From a 30MW Saudi desert plant to a 180MW Thai floating array — how housing material and sealing strategy change with the environment.
Read articleNeed a matched PV protection solution for your project?
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