GN30-12 3 Phase 12kv 630A Indoor High Voltage Isolating Disconnect Switch Factory
Model and meaning

Product Overview
The GN30-12D indoor rotary high voltage isolation switch is an additional form with a connecting knife based on the GN30-12 indoor rotary high voltage isolation switch, which can meet the needs of different power systems.This product features a sleek and space-saving design, occupying minimal floor area while providing excellent insulation capabilities. Installation and adjustment are a breeze, allowing for quick and hassle-free setup. Engineered to the exacting standards of GB1985-89 "AC High Voltage Isolation Switches and Grounding Switches", it guarantees reliable performance and safety.
Specifically designed for indoor electrical systems with an AC 50Hz rated voltage of 10 kV or below, this isolation switch serves as an ideal solution for switching circuits under de-energized and no-load conditions. Its versatility enables seamless integration with high-voltage switchgear assemblies, enhancing the overall functionality of electrical systems. Alternatively, it can be used independently to meet specific operational requirements. Whether for industrial, commercial, or utility applications, this isolation switch offers a robust, efficient, and user-friendly solution for managing high voltage electrical systems.
·The altitude does not exceed 1000m;
·Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%;
·The earthquake intensity does not exceed 8 degrees;
·A place free of severe dust, chemical corrosive and explosive substances;
·A place free of frequent and violent vibrations.
Product Parameters
| Parameters \ Models | GN30 - 12/400 - 12.5 | GN30 - 12/630 - 20 | GN30 - 12/1200 - 31.5 | GN30 - 12/1250 - 31.5 |
| GN30 - 12D/400 - 12.5 | GN30 - 12D/630 - 20 | GN30 - 12/D1200 - 31.5 | GN30 - 12D/1250 - 31.5 | |
| Rated Voltage (KV) | 12 | |||
| Rated Current (A) | 400 | 630 | 1000 | 1250 |
| Thermal Stable Current (KA) | 12.5 | 20 | 31.5 | |
| Thermal Stable Time (S) | 4 | |||
| Dynamic Stable Current (KA) | 31.5 | 50 | 80 | |
| Rated Insulation Level - Lightning Impulse Voltage (KV) | All have phase - to - phase, phase - to - ground 75, and fracture 85 | |||
| Rated Insulation Level - 1min Power Frequency Voltage (KV) | All have phase - to - phase, phase - to - ground 42, and fracture 48 | |||
Appearance and installation dimensions









