Reliable High Voltage Earthing Switch for MV Switchgear Panels
Safety First Indoor Grounding Switch Solutions for OEM Panel Builders and Manufacturers
Description du produit
Model No.: (EK6) JN15A-12/31.5
EK6‑12/31.5 Series indoor earthing switch is an upgraded design developed on the basis of the ES1 type. It is applicable to 3–12 kV three‑phase AC 50(60) Hz power systems. Serving as earthing protection equipment, it can be installed in various medium‑voltage switchgear assemblies. The product complies with GB 1985‑2004 and IEC 129 standards. Our high voltage earthing switches are essential safety components designed for medium voltage metal clad switchgear. Engineered for rapid closing and superior short circuit making capacity, these switches ensure the safety of maintenance personnel.
Key Performance Features
Advanced Interlocking: Seamlessly integrates with the VCB and cabinet door.
Short Circuit Capacity: Designed to withstand high thermal and dynamic stresses.
Durable Construction: High strength galvanized steel frame and silver plated copper contacts.
Working condition
- Ambient temperature: -10℃ -+40℃
- Altitude: ≤ 1000m;
- Relative humidity: Daily average ≤95%, Monthly average ≤ 90%;
- Earthquake intensity: ≤8 degree;
- Dirtiness degree: II.
Paramètres techniques
| Non. | Objet | Unité | Données | |
| 1 | Tension nominale | KV | 12 | |
| 2 | Rated short time withstand current | KA | 31.5 | |
| 3 | Rated short circuit withstand time | S | 4 | |
| 4 | Rated short circuit making current | KA | 80 | |
| 5 | Courant de résistance nominal de crête | KA | 80 | |
| 6 | Niveau d'isolation nominal | 1 min fréquence d'alimentation tension de résistance | KV | 42 |
| Lightning Impulse withstand voltage | 75 | |||
| 7 | Durée de vie mécanique | Temps | 2000 | |
Dessin

| Specification | E | F | G | H | D | C |
| EK6-12/31.5-165 | 165 | 75 | 160 | 565 | 426 | |
| EK6-12/31.5-180 | 180 | 75 | 160 | 595 | 456 | |
| EK6-12/31.5-200 | 200 | 75 | 160 | 635 | 496 | |
| EK6-12/31.5-210 | 210 | 75 | 160 | 655 | 516 | |
| EK6-12/31.5 230 | 230 | 75 | 160 | 695 | 556 | 96 |
| EK6-12/31.5-250 | 250 | 75 | 160 | 735 | 596 | 96 |
| EK6-12/31.5-275 | 275 | 75 | 185 | 810 | 646 | 96 |
















