24KV Epoxy Resin Insulating Contact Box
Products Description
The 24kV contact box is a core insulating component for 24kV mid-mounted switchgear (e.g., KYN28 series). It shares the same functions as 35kV products (insulation shielding, contact support, compartment separation) but is adapted for 24kV distribution systems. Typically molded via epoxy resin APG process, it features excellent insulation, high mechanical strength, and good temperature resistance, suitable for circuits with rated currents of 2000A~4000A.
Products parameters
| Parameter Category | Technical Specification |
|---|---|
| Rated Voltage | 24kV |
| Rated Current | 2000A to 4000A (common ratings) |
| Power Frequency Withstand Voltage (1 min) | 65kV (to ground / phase-to-phase) |
| Lightning Impulse Withstand Voltage (Peak) | 125kV (to ground / phase-to-phase) |
| Partial Discharge Magnitude | ≤5pC (at 26.4kV) |
| Short-Time Withstand Current (4s) | 40kA (RMS, typical rating) |
| Peak Withstand Current | 100kA (peak, typical rating) |
| Creepage Distance | ≥480mm |
| Material | Epoxy resin (APG process) |
| Operating Temperature Range | -30°C to +40°C |
Products advantages
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