High-voltage ceramic housing for vacuum circuit breaker arc chutes providing electrical insulation and mechanical support.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Leak Rate | <1×10⁻¹² mbar·L/s (helium) | |
| Flexural Strength | ≥300 MPa | |
| Surface Roughness | Ra ≤ 0.8 μm | |
| Volume Resistivity | >10¹² Ω·cm at 500°C | |
| Dielectric Strength | ≥25 kV/mm | |
| Thermal Conductivity | 20-30 W/m·K | |
| Operating Temperature | -40°C to +500°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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Manufacturer profiles associated with Ceramic Insulator Housing.
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Ceramic offers superior dielectric strength at high temperatures, better thermal shock resistance, lower outgassing in vacuum, and maintains dimensional stability under electrical stress, crucial for maintaining vacuum integrity over decades of operation.
Regular visual inspection for cracks or surface tracking, cleaning with non-abrasive solvents to prevent contamination buildup, and periodic dielectric testing. No routine replacement needed if properly installed and undamaged.
Using metallization processes (Mo-Mn or active metal brazing) that create hermetic ceramic-metal joints capable of withstanding thermal cycling and mechanical stress while maintaining vacuum integrity.
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