Brass Inner Cap For Photovoltaic Inverter DC Side Protection
Model Number: ASWT-F038
Material: Brass
Application:EV/PV/NH Fuse link
MOQ:Brass
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Product Introduction
The Brass Inner Cap For Photovoltaic Inverter DC Side Protection-also commonly referred to as Inner End Cap or End Cap Brass-serves as a critical conductive and structural component in DC fuse systems. It ensures stable electrical contact, effective current transmission, and secure mechanical fixation within fuse housings.
Manufactured primarily from H65 brass, these caps combine excellent electrical conductivity with reliable mechanical strength, making them suitable for demanding DC protection environments in photovoltaic and new energy applications.
Key Characteristics of H65 Brass Inner End Cap
Excellent Mechanical and Processing Performance
Good mechanical strength and toughness
Superior plasticity in both hot and cold forming conditions
Excellent machinability, suitable for high-speed stamping
Easy brazing and welding, supporting multiple joining technologies
Stable Corrosion Resistance
Natural corrosion resistance of brass material
Optional surface treatments further enhance environmental durability
Reduced risk of performance degradation in long-term operation
Cost-Effective Material Choice
H65 end cap brass is a widely used, mature brass grade
Competitive material cost, ideal for large-scale industrial production
Chemical Composition of H65 Brass Fuse Cap
The Brass Fuse Cap is produced using strictly controlled H65 brass material, with the following nominal composition:
Copper (Cu): 63.5% – 68.0%
Zinc (Zn): Balance
Lead (Pb): ≤ 0.03%
Phosphorus (P): ≤ 0.01%
Iron (Fe): ≤ 0.10%
Antimony (Sb): ≤ 0.005%
Bismuth (Bi): ≤ 0.005%
Total impurities: ≤ 0.3%
This balanced composition ensures optimal conductivity, strength, and corrosion resistance for Fuse Brass Cap applications.
Manufacturing Process and Production Capacity
High-Speed Precision Stamping
Produced using precision molds
Output efficiency: 50–60 pieces per minute
Excellent dimensional consistency for automated assembly
Surface Treatment Options
Depending on application requirements, the Inner End Cap can be supplied with:
Silver plating (enhanced conductivity and reduced contact resistance)
Nickel plating (e.g., Nickel Plated Brass End Caps for improved wear and corrosion resistance)
Tin plating
Copper plating
Pickling passivation and ultrasonic cleaning
Silver plating is often selected to improve electrical performance, reduce contact impedance, and enhance signal transmission, particularly in DC fuse systems.
Pickling & Passivation Process (9 Steps)
Pre-treatment before pickling
Hot water washing
Flowing water washing
First-stage pickling
Flowing water washing
Second-stage pickling
Oxidation protection treatment
Flowing water washing
Spin drying
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