The FZN25 and FZRN25 indoor vacuum load switches (LBS) and composite apparatus are designed for three-phase AC 50Hz ring networks or terminal power supply and industrial electrical equipment. They are primarily used for load control and short-circuit protection, allowing safe opening and closing of loop currents, no-load transformer currents, and cable charging currents. The composite apparatus can interrupt any current up to the rated short-circuit current.
Key Features
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Straight-move or isolating-fracture design with vacuum interrupter linkage for reliable switching.
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Supports both manual and electric operation, ensuring flexible control.
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Provides high reliability for industrial power distribution and protection systems.
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Suitable for ring networks, terminal power supply, and industrial load applications.
