IACM 12kv High Voltage Outdoor on Load Break Switch

FW1 type Outdoor on load break switch (switch disconnector) contained in this list are destined to switch stub lines and ring main lines or transformers( It can be equipped with MV HRC fuse links as short circuit protection function) or for switching under on load conditions. FW1 type switch comply with IEC/IEEE and DVE-recommendation standards. Especially comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC-129.

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Product Description

FW1-12/24/36

Service environment

a)Air temperature: Maximum temperature: +75℃ ; Minimum temperature:-45℃

b)Humidity: Monthly average humidity 95%; Daily average humidity 90% .

c)Altitude above sea level: Maximum installation altitude: 2500m

d)Ambient air not apparently polluted by corrosive and flflammable gas, vapor etc.

e)No frequent violent shake

Features and benefifits

•Compact design

•All steel parts either in stainless steel or hot-dip galvanized

•Solid and stable base frame

•Main contact with icing protection

•Insulators available in porcelain or alternatively in silicone

•Minimal sag for the line-connection thanks to the two fifixed terminals

•Completely maintenance antirust AL alloy -Arc chamber

•Switching-off procedure without external arc

•Short circuit making capacity under specifific conditions possible

•Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)

•Easy on-site installation and setting

•High reliability: up to 1’000 cycles (depending on the making current)

•All conducting parts either silver, nickel or tin-plated

•Practically maintenance-free

No	Item		Unit	Date
1	Rated voltage		Kv	12	24	36
2	Rated frequency		Hz	50/60
3	Rated current		A	200/400/630
4	Rated short circuit withstand current		KA	20
5	Rated peak withstand current		KA	50
6	Rated making current		KA	31.5-50
7	Rated insulation level（HV）	lighting impulse	KV	75/85	125/145	170/195
7	Rated insulation level（HV）	Power frequency withstand	KV	45	55/75	75/100
8	for active circuits	20 breakings	A	630	630	400
		30 breakings		400	400	300
		40 breakings		300	300	250
		50 breakings		250	250	170
		75 breakings		170	170	160
		120 breakings		110	110	110
		200 breakings		65	65	65
		280 breakings		50	50	50
9	For ring circuits breaking capacity			630	400	250
10	Rated breaking capacity of transformer			50	50	50
11	Rated breaking capacity of cable charging			11	11	11
12	Rated breaking capacity of earthing fault			56	56	56