Energy Storage Fuse 1000V 500A

The 1000V 500A DC Energy Storage Fuse is specifically engineered for severe fault isolation in Utility-Scale Battery Energy Storage Systems (BESS), Power Conversion Systems (PCS), and heavy-duty EV charging infrastructure. Utilizing a pure silver (99.99% pure Ag) fuse element and an automated internal quartz sand packing process, this high-speed fuse guarantees ultra-fast quenching of massive DC short-circuit arcs, safeguarding critical battery blocks and megawatt-level inverters. 

Thermal Control & Low Power Loss: Designed with a power dissipation of 75W or less at rated current. This prevents thermal runaway inside enclosed BESS combiner boxes and significantly reduces HVAC cooling loads.
Precise Arc Quenching Process: Uses vibration-compacted, high-purity quartz sand (99.5% or more SiO2) to eliminate internal air pockets. Upon fault, the sand instantly vitrifies into high-resistance fulgurite, extinguishing 100kA DC arcs within 10ms or less.
Silver-Element Reliability: Structural stamping of 99.99% pure silver elements prevents aging and resistance drift, ensuring a stable 15-year operational lifespan under cyclic load conditions.
Mechanical Resilience: The reinforced Alumina Ceramic body withstands up to 20g vibration and 50g mechanical shock, meeting harsh outdoor containerized storage requirements. 

As an ISO 9001:2015 certified manufacturer, we provide tailored solutions for global EPCs, inverter manufacturers, and tier-1 system integrators:
Flexible Current Tuning: The standard 500A body can be modified from 315A up to 630A within the same physical frame size.
Custom Terminal Geometry: Center-slotted, offset-slotted, or flush-mount terminal adaptations available to match your specific busbar layout.
Smart Labeling: Laser-etched QR codes on each fuse body for automated trace-and-track asset management.
Sample Lead Time: Custom prototypes are ready within 7 to 10 working days, complete with localized performance test reports. 

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. 

We mitigate global logistics risks through structured commercial frameworks:

MOQ: 100 units (For standard specification).
Production Capacity: 50,000 units per month with automated production lines.
Packaging: ESD-safe, high-density foam padding inside seaworthy 5-layer corrugated export cartons.
Shipping Terms: FOB Qingdao/Shanghai, CIF, or DDP (Delivered Duty Paid) directly to North American and European warehouses.
Documentation Provided: Certificate of Compliance (CoC), Full Batch Test Reports (including Mill Test Certs for silver and ceramics), and 3D STEP files for immediate CAD integration.