Brass Fuse Inner Cap
We specialize in the design and manufacture of high-performance brass stampings, among which the Brass Fuse Inner Cap is a key electrical connection component widely used in photovoltaic (PV), electric vehicles (EV), energy storage, UPS, and industrial high-voltage fuses. This product is precision stamped from high-strength H65 brass (CuZn36/C2700) and has excellent conductivity, structural strength, and a variety of surface treatment options. It has been widely used by many fuse manufacturers and power system integrators around the world.
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Product Introduction
Core components of circuit safety protection
As the key core component of the fuse, the brass fuse inner cap is the "safety valve" that ensures accurate response of circuit overload protection. Its material performance, structural accuracy, and conductive stability directly determine the breaking capacity and service life of the fuse. We use high-quality H65 brass materials and precision manufacturing processes. The brass fuse inner caps we produce have passed the rigorous verification of many electrical equipment manufacturers around the world and are widely used in various high-end fuse products.
Product technical parameters at a glance
| Parameter name | Technical data |
| Material | H65 brass (CuZn36 / C2700) |
| Tensile strength | ≥ 440 MPa |
| Surface treatment | Silver plating, bright tin, matte tin, nickel plating, ultrasonic cleaning (optional) |
| Dimension accuracy | ≤ ±0.05mm |
| Contact resistance | ≤ 0.5 mΩ |
| Corrosion resistance | Salt spray test ≥ 500 hours (according to ASTM B117) |
| Sample support | Free samples 10~50 pieces |
| Mold development cycle | 20~25 days |
| Formal order delivery time | 7~10 days |
| Monthly production capacity | ≥ 50,000,000 pieces |
| Certification | ISO9001, IATF16949, RoHS, REACH, etc. |
| Application | PV/EV fuse, energy storage, UPS DC link, NH, BS, etc. |
Core selling points
Excellent conductivity
High conductivity material: 65% brass H65 (CuZn36/C2700) is selected. Its high conductivity can effectively reduce resistance, reduce energy loss during power transmission, and ensure maximum power transmission efficiency.
Stable current carrying: tensile strength σb ≥ 440 MPa, can carry large current, and can maintain stable performance even under high current shock, meeting various application requirements from low current to high current (such as 700A).
01
Excellent corrosion resistance
Corrosion-resistant material: Brass itself has good corrosion resistance, can resist erosion in harsh environments such as moisture and salt spray, and extend Brass End Cap service life.
Various surface treatments: Provide a variety of surface treatments, such as silver plating, bright tin plating, lead-free matte tin plating, nickel plating, etc., to further enhance corrosion resistance and meet different electrical performance requirements.
02
High-precision manufacturing process
Precision stamping: Using advanced stamping equipment and processes to ensure that the End Cap Brass has high dimensional accuracy, strict tolerance control, and close cooperation with fuses and other components to prevent failures caused by poor contact.
Ultrasonic cleaning: After the ultrasonic cleaning process, surface impurities and burrs are thoroughly removed to ensure the surface cleanliness of the product and improve the overall quality.
03
Flexible customization and wide application
Size and shape customization: Brass Tube End Caps of different sizes and shapes can be customized according to the fuse specifications and design requirements provided by customers to meet personalized needs.
Widely adaptable applications: Applicable to PV fuses, EV fuses, PDU fuses, energy storage fuses, UPS DC links, NH fuses, BS fuses, fast fuses, and other scenarios, providing general solutions for different fields.
04
Reliable quality and certification guarantee
Strict quality inspection: From raw material inspection to finished Brass Pipe Cap testing, every step is strictly controlled and complies with ISO9001 and IATF16949 quality management system certification standards.
Environmental protection and safety certification: The product has passed RoHS, REACH, and other environmental certifications. Environmental protection processes such as lead-free matte tin plating meet international environmental protection requirements to ensure safe use.
05
Application scenarios | Trusted choice of global customers
Photovoltaic power generation
Adapt to PV inverter fuses, withstand high temperature and ultraviolet rays, and reduce system failure rate.
New energy vehicles
Used for power battery main circuit fuses, supports 800V high voltage platform, and reduces charging time by 10%~15%.
Energy storage system
Match the DC bus fuse of the energy storage battery pack, support 1500V high voltage, and improve energy conversion efficiency.
Industrial equipment
Suitable for high reliability scenarios such as UPS and PDU, meeting the requirements of a wide temperature range of -40℃~+70℃.
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