High Voltage Element FN3-12R(L) Indoor AC high voltage load switch

Description:

• Classification Series ：High Voltage Vacuum Load Switch • Product Name ：FN3-12R(L) Indoor AC high voltage load switch • Product Overview： FN3-12R(L)model indoor AC HV load break switch-fuse combination apparatus is developed and designed based on international technology andnational power supply requirement...

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Detailed Description

FN3-12R(L)model indoor AC HV load break switch-fuse combination apparatus is developed and designed based on international technology andnational power supply requirement,it passed all type tests and trial-operation inspections.The apparatus conforms to IEC420:AC LOAD BREAK SWITCH ANDFUSE COMBINATION APPARATUS(1990 EDITION)and GB3804:3-63KV AC HV LOAD BREAK SWITCH VOLUME AND LIGHT WEIGHT.Compared tointernational product it keeps up with technical level with small volume and light weight.It is applicable in ring main unit and prefabricated substations as well as12kv line and power distribution system.The product realizes three working positions:power making.power breaking and earth.It applies to power system ofrated voltage 6-12kv,50/60HZ breaking load current ober load current and short-circuit current.

Ambient condition

1.The altitude:under 1000M。

2.The ambient temperature:-25℃-+40℃。

3.The relative humidity of air:monthly≤90%,daily≤95%。

4.Ampitude:Earthquake degree 8。

5.Application occasions should free from fire,inflammables,explosives.corrosives and severe vibration。

Model implication

Technical specification

Rated voltage Ky	1min frequency	Rated Current A	4S thermal current A	Dynamic current(peak)KA	Rated breaking current A	Short circuit close current KA
12	42	400	12.5	31.5	400	31.5
12	48	630	20	50	630	50

Overall dimension

Fuse ratings

Model	Rated voltage(KV)	Rated current(A)	Fondant rated current (A)
SDLA*J	12	50	6.3,10,16,20,25
			31,5,40,
SFLA*J	12	100	50,63,71,80,
			100
SKLA*J	12	125	125