3-in-1 Load Breaker Switch TYF-12GDR,Indoor Switch-3-in-1 Load Breaker Switch TYF-12GDR-Wenzhou Tuyuan Electric Co.,Ltd

The TYF-12GDR series of high-voltage compact air-insulated switches are primarily used in power distribution systems for photovoltaic and wind power generation, industrial and mining enterprises, residential communities, urban complexes, and similar applications. Their fixed, compact, integrated, and modular design makes them particularly suitable for confined spaces with limited installation room, such as distribution rooms, prefabricated substations, and underground parking garages. In 10kV systems, the minimum single cabinet width is 550mm, and they allow for full front-side maintenance.

No.	Item	Unit	Vacuum LBS	Vacuum LBS Fuse
1	Rated Voltage	kV	12
2	Rated current	A	630	≤160 according to the Fuse
3	Rated frequency	Hz	50/60
4	1 min rated frequency withstand voltage	kV	42/42
5	Rated lightning impulse withstand voltage	kV	75/85
6	Rated short-circuit breaking current	kA		50
7	Active load breaking current	A	630
8	Rated closed-loop breaking current	A	630
9	Active load small current breaking	A	31.5
10	Rated cable charging breaking current	A	10	10
11	Rated short-time withstand current	kA	20
12	Rated short-circuit making current	kA	50	125
13	Rated short-time withstand current duration	S	4
14	Rated peak withstand current	kA	50
15	Rated transfer current	A		3150
16	Circuit Resistance	Ω	≤150	≤250 Fuse
17	Motor Power	W	90
18	Allowable wear thickness of moving and fixed contacts	mm	3
19	Contact gap	mm	9±1
20	Contract travel	mm	3.5±0.5
21	Contact closing bounce time	ms	≤2
22	Three-phase closing/opening asynchrony	ms	≤2
23	Average closing speed	m/s	0.5-1.1
24	Average opening speed	m/s	0.9-1.3
25	Mechanical life	times	10000

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