
FLN36-12D/FL(R)N36-12D series indoor high-voltage sulfur hexafluoride load switch is a medium-voltage switchgear developed by our company with reference to international new technology and according to the relevant standards of China's power system, and its performance indicators meet the national standard GB/T3804-2017 "3.6kV-40.5kV high-voltage AC load switch", which is the main switching element of the ring main unit.
The load switch is a collection of brake, opening, grounding as one of the multi-functional medium voltage switchgear, in a fully sealed, with a reinforced structure of epoxy resin shell filled with 0.05MPa SF6 gas, with the least parts to achieve the above three functions, to ensure the quality of the product, improve the reliability. It is maintenance-free and can operate safely for more than 20 years under normal conditions.

F L R N - 36 12D / 630/125 - 20/31.5
1 2 3 4 5 6 7 8






Wenzhou Naisite Electric Co., Ltd is a technology oriented transmission and distribution equipment manufacturing enterprises, since its establishment in 2011, focus on transmission and distribution equipment technology progress, advocating technological innovation, introduce new energy prefabricated, a secondary fusion ring cage, environmental protection cabinet,Transformers, cable branch box, box type substation such as intelligent high and low voltage transmission and distribution equipment. Applicable to electric power, railway, petrochemical, subway, municipal construction, steel, coal and other industries. The company's products have achieved a number of technological breakthroughs in environmental protection, miniaturization, intelligence, maintenance free and other aspects. The headquarters of Wenzhou Naisi Electric Co., Ltd is located in the core area of Wenzhou Yueqing Economic Development Zone, "the capital of Electrical appliances in China". Has an excellent domestic intelligent distribution network products assembly line.
The company has a vacuum box helium leak detection system, local discharge test laboratory and other advanced inspection and test equipment system. With the basic experimental facilities and research environment needed for advanced technology development and scientific research, the products are tested according to the international IEC standards. The enterprise has passed the IS09001 quality system certification, IS014001 environmental system certification and OHSAS18001 occupational health and safety management system certification, the products have been obtained the CNAS national accreditation laboratory certification report.