Ceramic Body For Mersen
Products Description

The Ceramic Body for Mersen is a high-performance ceramic housing specifically designed for traditional power fuse systems. Typically featuring a yellow square design, it is primarily used in industrial power distribution and low-voltage power protection applications. This product utilizes a high-density ceramic material as its matrix, manufactured through precision molding and high-temperature sintering processes, resulting in excellent electrical insulation, high-temperature resistance, and structural stability. During fuse operation, the ceramic body not only serves as a core structural support component but also provides arc isolation and energy carrying capabilities. Through synergy with an internal system filled with high-purity quartz sand and molten metal, it achieves fast, safe, and reliable short-circuit protection, making it suitable for traditional power systems with high breaking capacity and safety requirements.
Manufacturing Advantages
Powder Engineering and Formulation Design
Independently optimizes the particle size distribution and additives of alumina-based powders for Ceramic Body for DC Fuse Link, precisely controlling sintering shrinkage, mechanical strength, and coefficient of thermal expansion while ensuring high purity to meet the matching requirements of different metal end caps.
Precision Dry Pressing/Isostatic Pressing
Employs high-precision molds and servo-controlled dry presses for Ceramic Body for Littelfuse, or isotropic isostatic pressing technology, ensuring uniform green body density and dimensional stability, laying the foundation for subsequent low-deformation sintering.
High-Temperature Tunnel Kiln Sintering Process
Uses fully automated high-temperature tunnel kilns, precisely controlling the heating curve for Ceramic Body for Siemens, maximum holding temperature (typically >1600°C), and cooling rate to obtain a fine, uniform, and highly dense (>95% theoretical density) microstructure, the cornerstone of high performance.

Product Advantages
Ultra-fast Fracture Response: The Ceramic Body for Auto Fuses material fractures in an extremely short time, ≤10 ms, ensuring instantaneous circuit interruption under high-energy transients and preventing the arc from continuously igniting surrounding structures.
Exceptional Insulation Performance: Extremely high volume resistivity of Ceramic Body for Siemens, ≥1×10¹⁴ Ω·cm, and extremely low water absorption, ≤0.1%, maintaining insulation performance even in humid environments.
Superior High Temperature Resistance: Maximum operating temperature of Ceramic Body for Littelfuse up to 1200°C, far exceeding the temperature limits of other ceramics, maintaining structural integrity during arcing.

Detailed Specifications
Dimensional Details
Machining accuracy ±0.01mm; neat, square yellow structure of Ceramic Body for DC Fuse Link with precise dimensions; seamlessly fits the Mersen fuse housing; standard, flat weld joint; allows for precise butt welding with copper-tin alloy molten metal, avoiding potential welding and contact hazards.
Quartz Sand Filling Details
Filled with high-purity quartz sand (SiO₂ ≥ 99.5%, particle size 100–200 μm); dense and gapless filling for Ceramic Body for Littelfuse; compacted for a tight fit, ensuring stable arc-extinguishing performance and preventing quartz sand displacement from affecting use.
Weld Joint Details
Precision-machined weld joint with a smooth for Ceramic Body for Siemens, flawless surface; allows for strong welding with copper-tin alloy molten metal, eliminating potential issues such as incomplete welds or leaks; precise dimensions adaptable to different molten metal specifications, ensuring excellent current conduction and breaking performance.

contact us
Our Ceramic Body for Mersen provides the most robust "safety armor" for your power systems, thanks to the extreme purity of our materials and precise manufacturing processes. Click here to access our technical data sheet or discuss your specific needs with our engineering team.
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