Low Voltage 3000A Square Fast Blow Ceramic Fuse

The Low Voltage 3000A Square Fast Blow Ceramic Fuse is engineered for ultra-fast short-circuit protection in high-power semiconductor applications. Utilizing pure silver elements and high-density C799 alumina ceramic, this fuse delivers minimal I2t let-through energy and high breaking capacity 

Pure Silver Element Technology: Precision-stamped 99.99% pure silver elements ensure lower power dissipation (less than or equal to 450W at Rated Current) and stable time-current characteristics, preventing premature aging.
Arc Quenching Matrix: Filled with high-purity, chemically treated quartz sand (greater than or equal to 99.5% SiO2) to guarantee rapid cooling and extinguishment of electric arcs under maximum fault currents.
Advanced Ceramic Housing: C799 alumina body provides excellent thermal shock resistance and a dielectric strength exceeding 15kV/mm, ensuring no structural failure during 200kA short-circuit faults.
Low Let-Through Energy (I2t): Ultra-fast response time (less than or equal to 2ms) minimizes thermal and mechanical stress on downstream sensitive components (SCRs, MOSFETs). 

We provide flexible engineering modifications for global Tier-1 system integrators:

Electrical Profiling: Custom I2t characteristics, tailored voltage ratings (up to 1500VDC), and specific power loss configurations.
Mechanical Adaptation: Tailored terminal blade orientations, flush-end modifications, visual trip indicators, and microswitch attachments for remote fault signaling.
Private Labeling: Laser-engraved part numbers, barcodes, QR codes, and client-specific logos directly on the ceramic body. 

Established in 1988, Zhejiang Chifeng Electric Co., Ltd. is a premier manufacturer dedicated to pioneering fuse technology and delivering high-reliability circuit safety solutions globally.

Decades of Industry Expertise:
Backed by over 35 years of specialized fuse manufacturing experience, trusted by 1,200+ clients worldwide.
Robust Technical Barriers:
Armed with 48 authorized patents (including core invention patents) and 159 qualification certificates, supported by a 65% automation rate in production.
Global Compliance & Certifications:
Formally ISO9001 certified. All products fully comply with IEC 60269 and GB 13539 standards, and hold prestigious international safety marks including CCC, CE, CB, TÜV Rheinland, and UL.
End-to-End Capability:
Operating from a 16,000 m² state-of-the-art facility, we house an in-house R&D center, a dedicated testing lab, and high-precision breaking capacity test systems.
Direct-from-Manufacturer Advantage:
Factory-direct sales model minimizes intermediary markups, ensuring top-tier quality with optimal cost efficiency. 

Incoterms Accommodated: FOB, CIF, EXW, and DDP (Air/Sea) to ensure door-to-door delivery with customs pre-cleared.
Packaging Standard: Anti-static, moisture-proof individual slots packed in heavy-duty export cartons compliant with ISPM-15 phytosanitary standards.

Lead Time:
Standard inventory samples: 3-5 working days.
Bulk production (more than 1000 units): 21-30 working days.
Traceability: Every batch comes with an independent Quality Inspection Report and Material Certificate of Conformance (CoC).