Copper Cap For Bussmann Series Class H(K) Fuses
The Copper Cap for Bussmann series Class H(K) Fuses is one of the key metal components in the Bussmann Class H(K) fuse series, primarily responsible for current conduction, mechanical encapsulation, terminal connection, and heat transfer. Although small in size, the choice of material, geometric precision, welding, and surface treatment quality directly affect the fuse's contact resistance, temperature rise control, and operational consistency during long-term operation.
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Product Introduction
Our Copper Cap for Bussmann series Class H(K) Fuses are designed specifically for Bussmann Class H(K) fuses, suitable for the new energy and power electronics fields. Made of high-purity copper and produced using standardized processes, they focus on technical compatibility, long-term reliability, manufacturing consistency, and supply risk control. They perform the core functions of conductivity and protection, providing engineering procurement with precise, stable, durable, and cost-effective component solutions.
Process Flow
Stamping: High-purity copper sheets are stamped using precision stamping technology, precisely controlling the In-line Caps for Fuse Link's dimensions to ensure initial forming accuracy and lay the foundation for subsequent processes.
Stretching: The stamped blank is stretched into a pre-designed cap-shaped structure using precision stretching technology. The stretching rate and force are controlled to prevent cracks and deformation, ensuring structural integrity and dimensional consistency.
Riveting: The stretched products are precisely riveted to ensure a tight fit between the slot and the assembly parts, facilitating fuse core installation and ensuring easy assembly and a perfect fit, improving manufacturing consistency.
Electroplating: The riveted products are electroplated to improve corrosion resistance and surface finish, preventing oxidation and rust, extending Fuse Copper lifespan, and ensuring long-term reliability.
Soldering: Key parts of the product are soldered according to assembly requirements, ensuring smooth and strong weld joints, guaranteeing conductive continuity, and meeting fuse operating requirements.
Silver Brazing: For high-specification products, silver brazing enhances the strength and conductivity of welded joints, adapting to the high-current requirements of the new energy sector and strengthening product technical adaptability.
Laser Welding: Precision laser welding enables accurate welding of minute parts of the product, with an error controlled within ±0.02mm, ensuring welding precision and joint quality, and improving manufacturing consistency.
Resistance Welding: For mass-produced products, resistance welding improves welding efficiency while ensuring uniform weld quality, guaranteeing that the weld performance of each Fuse Copper meets standards and controlling supply risks.
Core technical parameters
Dimensional Accuracy
Copper End Cap Solder Fittings dimensions are customized using OEM/ODM models, ensuring precise production according to customer-provided drawings. Strict control over key dimensional tolerances guarantees accurate compatibility with various new energy fuses, ensuring assembly fit and manufacturing consistency, and meeting customized engineering procurement needs.
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Material Parameters
The core material is 99.99% T2Y2 high-purity copper, with H65 brass available upon request. The copper boasts a conductivity ≥97% IACS and a Vickers hardness of HV80~110, ensuring stable material performance, guaranteeing high conductivity and structural strength, and adapting to the demanding operating conditions of the new energy sector.
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Surface Treatment
The Copper Outer End Cap for High Voltage Low Current EV Fuse supports various surface treatments including silver plating, bright tin plating, lead-free matte tin plating, nickel plating, and ultrasonic cleaning and passivation. Strict control over plating thickness enhances corrosion resistance and conductivity stability, extending product lifespan and adapting to diverse engineering applications.
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Welding/Riveting
The Copper Cap for Cylindrical Fuses is compatible with resistance soldering, silver soldering, laser welding, and other processes. Welding torque and brazing pull force meet standards, and riveting ensures a tight, secure fit without loosening, guaranteeing product assembly reliability and conductive continuity, and meeting manufacturing consistency requirements.
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Core Service Performance
The Copper Outer Cap for Eaton Bussmann Fuse has passed rigorous salt spray testing and other inspections, and its material composition, dimensions, and other indicators meet standards. It is suitable for EV/HEV, photovoltaic, and other new energy scenarios, ensuring stable service performance, long-term product reliability, and reducing engineering procurement and usage risks.
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Packaging and shipping
As a common small item, the Copper Cap for Bussmann series Class H(K) Fuses is packaged with multiple layers of protection: inner plastic bag + inner cardboard box + outer carton + outer pallet + outer moisture-proof film and cable ties for reinforcement. This provides protection against moisture, dust, and collisions. At the same time, the product is clearly categorized and labeled for easy warehousing and assembly. For transportation, we select high-quality logistics partners, synchronize logistics information, and track the product's transportation status throughout the process to ensure that the product is delivered to the customer's site on time and in good condition, thus ensuring the smooth progress of fuse assembly.
contact us
If you are currently in the Copper Cap for Bussmann series Class H(K) Fuses selection or technology evaluation stage, you are welcome to provide project conditions and key parameters for engineering confirmation.
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