Silicate Ceramic Elements and Ziralit for Circuit Breaker Design
Insulation is a central element in circuit breaker technology. Silicate ceramic elements and Ziralit offer additional properties and advantages indispensable to electrical circuit breakers.
Naturally, insulation is the most important element here, but other properties such as high strength and form stability, resistance to aging, insensitivity to chemical influences and corrosion, tracking resistance as well as resistance to temperature changes and heat are all among the many features of CeramTec circuit breaker components made from silicate ceramics.
This results in a number of advantages customers won’t want to miss: Ceramic components extend the technical service life of fuses, increase safety, allow shorter disconnect times and ensure more cost-efficient design.
Ziralit is a zirconium oxide toughened alumina with many advantages in circuit breaker technology – especially in telecommunications:
- Excellent flexural and dielectric strength
- Outstanding temperature resistance
- Superior toughness
- Enhanced performance for large-scale production and tight tolerances
Due to its high temperature performance, the material offers tremendous advantages over standard silicate ceramic parts for fuses in the field of telecommunications, where highly demanding requirements of 600V and 60A are not uncommon.
Silicate- and Oxid-Ceramic Elements for Fuses
| Silicate Ceramics | Oxide Ceramics | ||||
| C221 (Din EN 60 672) | C410 (Din EN 60 672) | ZTA (CeramTec Best Performer) | C610 | C620 or C780 (Din EN 60 672) | C795 - C799 (Din EN 60 672) |
| Frequenta | Sikor S | Ziralit | TEP-C (A12) | A14 | Rubalit IS95, Rubalit A1999,7 |
| Recommended for standard applications, no special need for miniaturisation, normal trigger speed for fuse break. | Recommended for high temperatures and higher voltage applications. | High performance material, allows smaller wallthickness and sizes then other materials in electronic applications. | Small sized fuse bodies with thin walls produced by extrusion. | For fuses and Insulators with advanced mechanical properties. | Recommended for insulators and fuse bodies in high voltage application. |