Commutator interruptor altus tensio interior 12kV

Product Overview

FN5 - 12 indoor AC high-voltage load break switch (hereinafter referred to as the load break switch) is suitable for AC 50Hz, 12kV networks. It is used for breaking load current and closing short-circuit current. The load break switch with a fuse can cut off short-circuit current and be used as a protection switch.

This load break switch can be equipped with the CS6 - 1 manual operating mechanism and the special CS manual operating mechanism for this product.

Key Features

• Precise Current Control：Suitable for 12kV, 50Hz AC systems. It can stably break load current and close short-circuit current, ensuring normal operation and maintenance of the power grid as well as emergency operations during faults.

• Extended Protection Function：When paired with a fuse, it can cut off short-circuit current and act as a protection switch, providing overload and short-circuit dual protection for power equipment and simplifying the protection levels of the distribution network.

• Wide Scene Adaptability：Focused on indoor 12kV AC networks. It is suitable for typical indoor power distribution scenarios such as ring main units and box-type substations, meeting the needs of distribution network construction.

• Flexible Mechanism Configuration：Supports the CS6 - 1 general manual operating mechanism and can also be adapted to the special CS mechanism, compatible with different operating habits and equipment matching requirements.

• Mature Technical Architecture：Iterated based on the classic FN5 - 12 model. It has a compact structure, stable arc-extinguishing performance, high long-term operation reliability, and reduces operation and maintenance costs.

Technical Parameters

Name	Unit	Value
Rated Current	A	400	630
Rated Short-time Withstand Current (Thermal Stable Current)	kA/S	12.5/4	20/2
Rated Peak Withstand Current (Dynamic Stable Current)	kA	31.5	50
Rated Closed-loop Breaking Current	A	400	630
Rated Active Load Breaking Current	A	400	630
5% Rated Active Load Breaking Current	A	20	31.5
Rated Cable Charging Breaking Current	A	10
Rated No-load Transformer Breaking Current		No-load Current of 1250kVA Transformer
Rated Short-circuit Making Current	kA	31.5	50
Load Current Breaking Times	Load/Time	100%/20 60%/35	30%/75 5%/80
1min Power Frequency Withstand Voltage (Effective Value, to Ground, Phase-to-Phase/Isolation Break)	kV	42/48
Power Frequency Withstand Voltage, Between Isolation Breaks	kV	Cognosce tui fornitori ROCKWILL Rockwill Electric GROUP Co., Ltd 17yrs 700++ staff 108000m²+m² US$150000000+ China Rockwill Electric GROUP Co., Ltd 17yrs 700++ staff 108000m²+m² US$150000000+ China Venditio Online Ratio praestabilitae tradendae Tempus responsionis 100.0% ≤4h Brevis Descriptio Societatis Locus Operis: 108000m²m² Numerus omnium laborantium: 700+ Summa Annua Exportatio (USD): 150000000 Locus Operis: 108000m²m² Numerus omnium laborantium: 700+ Summa Annua Exportatio (USD): 150000000 Servitia Genus Negotii: Design/Fabricatio/Venditio Categorias Principales: apparatus electrum altum voltus/transformator Gubernatio vitae Servitia gestionis curae integralis pro quaestu, usu, conservatione et post-venditionem apparatus electricorum, securitatem operationis, continuationem imperii et usum electricitatis sine cura garantia. Fornitori instrumentorum praeteritus est certificationem qualificationis platformae et iudicium technicum, ut ex fonte conformitas, professionalitas et fiducia servantur. Plures Producti Vide profili Negotiabilis Calculatrum pretiationis Modelum FN5 - 12 Inquiry conloquere nunc Inquiry conloquere nunc Garantia a Gubernatio vitae Servitia gestionis curae integralis pro quaestu, usu, conservatione et post-venditionem apparatus electricorum, securitatem operationis, continuationem imperii et usum electricitatis sine cura garantia. Fornitori instrumentorum praeteritus est certificationem qualificationis platformae et iudicium technicum, ut ex fonte conformitas, professionalitas et fiducia servantur. 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