The CH3‑12KV/180 1250A (Large Aperture) contact box features a generous cable-entry opening for swift installation of multi‑core or large‑diameter cables. Molded in one piece from epoxy resin, it is rated for 12 kV voltage and 1250 A current, withstands 31.5 kA/4 s short‑time currents and 80 kA peak currents, and its IP67 enclosure ensures dust‑ and water‑tight performance in ambient temperatures from –40 ℃ to +40 ℃.
Compatible with medium‑ and high‑voltage switchgear, this contact box is ideal for GIS, compact substations, wind/solar collector cabinets, and rail transit systems. The large aperture speeds up cabling and eases onsite wiring challenges, while the epoxy‑resin construction maintains long‑term insulation and aging resistance, making it perfect for applications demanding rapid installation and superior protection.
| Type | CH3/12KV/180 1250A（Large） |
| Rated Current | 1250A |
| Rated Voltage | 12kV |
| Rated Short-time Withstand Current | 31.5kA/4s |
| Rated Peak Withstand Current | 80kA |
| Product Features | Large Aperture Design |
| Material | Epoxy Resin |
| Protection Level | IP67 |
Fast Cabling: Large‐aperture interface cuts onsite cabling time significantly.
Easy Maintenance: Modular parts allow quick swaps without full disassembly.
Versatile Compatibility: Suited for GIS, compact substations, wind‐power collector boxes, rail transit, and other MV/HV systems.
Long‑Term Reliability: Epoxy resin insulator resists aging, moisture, and heat; operates from –40 ℃ to +40 ℃.
Superior Protection: IP67 enclosure keeps critical components safe from moisture and dust.
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