Time Delay 10x38 Fuse Link

The 10x38mm Time-Delay Cylindrical Fuse Link (gD/aM operational class equivalent or dual-element slow-blow) is specifically engineered to protect circuits characterized by high temporary inrush currents and inductive loads. By allowing short-duration surge currents from motors, transformers, and switching power supplies to pass without nuisance tripping, it ensures uninterrupted industrial operations while delivering rigid, heavy-duty protection against sustained overloads and catastrophic short circuits. 

Dual-Element Time-Delay Design: Incorporates a spring-loaded heat-sink mechanism paired with a 99.99% pure silver short-circuit element. The low-melting-point alloy joint absorbs transient thermal energy from motor startups (preventing fatigue and nuisance blowing), while the silver link guarantees immediate clearing under short-circuit faults.

Reinforced Ceramic Housing: Constructed from structural C795 alumina ceramic, offering a dielectric strength of over 10 kV/mm and high thermal shock resistance, preventing body ruptures under maximum 100kA fault conditions.

High-Purity Silica Sand Fill: Packed with 99.5% pure, uniform-grain quartz sand (SiO2)). Mechanically vibrated to maximum density to instantly quench heavy industrial AC arcs and prevent internal ionization leakage.

Low Contact Resistance Caps: Precision-stamped T2 copper end caps with heavy nickel or silver plating. Contact resistance is limited to less than 0.25 mOhm, achieving an operating temperature rise well below the 45K limit inside tight, multi-pole modular DIN-rail fuse holders.

We collaborate with global industrial automation brands, component distributors, and original equipment manufacturers (OEMs):

Custom Time-Current Curves: Tailored pre-arcing time profiles to match specific motor starting profiles or high-capacity transformer inrush peaks.
Precision Laser Marking: OEM brand logos, specific factory part numbers, regulatory symbols, and tracking matrix codes permanently etched onto the ceramic body.
Special Terminal Options: Industrial fuse links with integrated PCB solder pins, inline wire leads, or offset bolt-on blades. 

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. 

Inner Packaging: 10 pcs per box / 100 pcs per clear shrink-wrapped industrial pack.
Standard Export Shipping Case: 3,000 pcs per heavy-duty double-wall master carton (Dimensions: 420mm x 280mm x 210mm, Gross Weight: Approx. 31.0 kg).
Palletizing Protocol: Shipped on heavy-duty, non-fumigation ISPM-15 plastic or wooden pallets, bound with polyester strapping and structural edge protectors for long-haul ocean freight.
Incoterms Supported: FOB, CIF, DDP (Door to Door including customs clearance), EXW.
Mass Production Lead Time: 10-15 working days for standard specifications for volume orders up to 100,000 pcs.