FKW29-12 outdoor high-voltage isolation load switchDetailed product description：

The FKW29-12 outdoor high-voltage isolation load switch is suitable for outdoor AC 50Hz, rated voltage 12kV power systems, with rated currents of 400A and 630A. It can disconnect and close load currents, as well as disconnect transformer no-load currents, overhead lines, cable lines, and capacitor banks at a certain distance. It has functions such as disconnection, isolation, connection, switching, and protection, and is suitable for overhead distribution lines in urban networks, rural networks, railways, petrochemicals, etc. This product is an ideal electrical equipment for power distribution network renovation.

1. Double blade isolation switch and load terminal plated with thick silver; 2. Special grease coating and guiding device ensure that the closing is in place, accurate and error free; 3. Fully open type. The arc extinguishing chamber is wrapped with silicone rubber corrugated pipes to prevent moisture, and is not filled with oil or gas; 4. Can be equipped with manual and electric mechanisms; 5. There is a clear visible fracture in the open state, which completes the function of the composite electrical device; 6. Can be equipped with grounding switches and fuses; 7. It can be installed in single-phase or three-phase, with various installation methods, including single pole or double pole installation. 8. Suitable for overhead distribution lines in urban and rural power grids, railways, petrochemicals, etc.

Project Name		unit	parameter
rated voltage		kV	twelve
rated current		A	400,630
4-second rated short-time withstand current (effective value)		kA	16,20
Rated short-circuit closing current		kA	40,50
1-minute work pressure endurance	Dry test	kV	forty-eight
	Wet test	kV	forty-two
Lightning impulse withstand voltage (phase to phase and relative to ground)		kV	75/85
mechanical life		time	two thousand