GN19-12C type isolating switch is an indoor through wall high-voltage switchgear widely used in AC 50Hz, rated voltage 12kV power systems. It is mainly used for switching circuits under no-load conditions to achieve reliable isolation between electrical equipment and power supply. It supports three-phase parallel installation or through wall layout in special scenarios
| T y p e | Rated voltage(kV) | Rated current | Rated short circuit current(4s) | Rated peak current |
| GN19-12(C)/400-12.5 | 12KV | 400A | 12.5KA | 31.5KA |
| GN19-12(C)/630-20 | 12KV | 630A | 20KA | 50KA |
| GN19-12(C)/1000-31.5 | 12KV | 1000A | 31.5KA | 80KA |
| GN19-12(C)/1250-31.5 | 12KV | 1250A | 31.5KA | 80KA |
| GN19-12(C)/1600-40 | 12KV | 1600A | 40KA | 80KA |
| GN19-12(C)/2000-40 | 12KV | 2000A | 40KA | 80KA |
Establish visible breakpoints to ensure equipment and power isolation during maintenance.
Split and close low current circuits (such as bus charging current, voltage transformer excitation current).
Indoor environments such as substations and distribution rooms.
Places without fire, explosion, chemical corrosion, and severe vibration
It is strictly prohibited to operate with load: opening and closing should be performed after the circuit breaker is disconnected.
Maintenance requirements: Regularly check the contact pressure of the contacts, the cleanliness of the insulators, and the lubrication of mechanical components.
Through the above design, the GN19-12C type isolating switch plays a key role in ensuring the safe operation of the power system. The specific selection needs to be based on the current level, environmental conditions, and functional expansion requirements
