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Tubular and SMT Fuse Bodies for Device Protection Fuses

Silicate Ceramics in Fuse Technology

Silicate ceramic fuse bodies perform key functions in electrical fuses: electrical insulation, mechanical stability, and high temperature resistance. CeramTec manufactures precision tubular and SMT components from silicate ceramics as well as the high-performance material Ziralit.

Properties of Silicate Ceramic Fuse Bodies:

  • High electrical insulation capability
  • Good mechanical strength and dimensional stability
  • Resistant to aging and corrosion
  • High tracking resistance
  • Resistance to thermal cycling and elevated temperatures
Silicate Ceramic Thermocouple or Circuit Breaker Tubes

Advantages in Fuse Construction

  • Extended fuse service life
  • Increased operational reliability
  • Shorter switching times
  • Support for compact and cost-efficient designs

Ziralit – More than an Insulator

Ziralit is a zirconium oxide-reinforced aluminum oxide for applications with elevated thermal and mechanical requirements.

  • Very high mechanical load capacity and temperature resistance
  • Tight tolerances for high-volume production
  • Excellent flexural strength and dielectric strength

For projects of appropriate size and volume, we also support our customers in the targeted further development of materials, in order to optimally adapt components to specific requirements.

Zirconia-reinforced aluminium oxide for safety technology
CeramTec Materials for Fuse Bodies and Insulaters

Silicate- and Oxid-Ceramic Elements for Fuses

Oxide CeramicsSilicate Ceramics
Ziralit (CeramTec Best Performer)TEP-C (A12)A14Rubalit IS95, Rubalit A1999,7Sikor SFrequenta
ZTA C610C620 or C780
(Din EN 60 672)
C795 - C799
(Din EN 60 672)
C410
(Din EN 60 672)
C221
(Din EN 60 672)

Overview of important Properties

 ZiralitA14TEP CRubalitSikor SFrequenta
Bending Strength+++++++++++++
Youngs Modulus+++++++
Thermal Expansion+++++++
Thermal Conductivity+++++++++
Thermal Shock Resistance++++++++
Dielectrical Strength++++++++++
Specific Resistance++++++++
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