The 40.5kV Center Distance 400mm Standard Embedded Pole is molded with APG epoxy resin technology and tailored for compatibility with mainstream vacuum circuit breakers. It offers excellent insulation and mechanical durability, supporting rated currents from 1250A to 2500A. Designed for use in medium to high voltage distribution systems and industrial automation applications.
| Rated Voltage | 40.5kV |
| Rated Current | 1250A, 1600A, 2000A, 2500A |
| Rated Frequency | 50Hz |
| Rated Short-Circuit Breaking Current | 25kA, 31.5kA |
| Rated Short-Circuit Breaking Current Breaking Operations | 30 times |
| Rated Short-Circuit Making Current | 80kA |
| Rated Peak Withstand Current | 80kA |
| Rated Short-Time Withstand Current (4s) | 25kA, 31.5kA |
| Rated Single Capacitor Bank Breaking Current | 630A |
| Rated Back-to-Back Capacitor Bank Breaking Current | 400A |
| Short-Time (1min) Power Frequency Withstand Voltage | 95kV |
| Lightning Impulse Withstand Voltage (Peak) | 185kV |
| Circuit Resistance under Rated Contact Pressure | ≤25~30Ω |
| Mechanical Life | 10,000 times |
| Contact Self-closing Force | 200±60N |
| Contact Reaction Force at Rated Opening Distance | 300±60N |
| Permissible Contact Wear Thickness | 3mm |
| Storage Period | 20 years |
| Partial Discharge | ≤5pC |
| Rated Operating Sequence | O-0.3s-CO-180s-CO |
| Contact opening distance | 20±1mm |
| Rated overtravel | 5±1mm |
| Average opening speed | 1.7±0.2m/s |
| Average closing speed | 0.75±0.2m/s |
| Rated contact pressure | 3100±200N、3600±300N |
| Contact closing bounce time | ≤3ms |
| Contact opening and closing phase difference | ≤1ms |
| Opening contact rebound amplitude | ≤2mm |
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