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300E-3C-15.5 PDF预览

300E-3C-15.5

更新时间: 2024-11-06 22:35:59
品牌 Logo 应用领域
力特 - LITTELFUSE 电熔丝电路保护高压
页数 文件大小 规格书
5页 384K
描述
E Rated Medium Voltage Fuses

300E-3C-15.5 技术参数

生命周期:ActiveReach Compliance Code:unknown
ECCN代码:EAR99风险等级:5.76
Is Samacsys:N熔断特性:MEDIUM
主体高度:479.43 mm主体长度或直径:247.05 mm
电路保护类型:ELECTRIC FUSE安装特点:INLINE/HOLDER
物理尺寸:247.05mm x 479.43mm额定分断能力:80000 A
额定电流:300 A额定电压(交流):15500 V
表面贴装:NO端子形状:END CAP
Base Number Matches:1

300E-3C-15.5 数据手册

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E Rated Medium Voltage Fuses  
Current Limiting  
ERated fuses have time current characteristics designed  
to provide current limiting protection for power transformers,  
potential transformers, power centers, feeder centers, and  
unit sub stations. When properly applied, they can protect  
against high and low value fault currents.  
CHARACTERISTICS  
Voltage Rating: 2,400 volts 38,000 volts  
Current Range: 10E 600E  
OPTIONS  
NEMA Standards for Erated medium voltage fuses require  
that fuses rated 100E or less open within 300 seconds (5  
minutes) when subjected to an RMS value of 200-240% of  
the fuses continuous current rating; and fuses with an E”  
rating larger than 100E must open within 600 seconds (10  
minutes) when subjected to an rms current of 220-240% of  
the fuses continuous current rating. These values establish  
one point on the time-current curve.  
Hermetically Sealed for use in hazardous locations  
(add Ssuffix to part number)  
Clip-lock (CL) and bolt-in styles available.  
Application Note:  
Since these fuses are used for the protection of general  
purpose circuits which may contain transformers, motors,  
and other equipment producing inrush and/or overload cur-  
rents, fuses should generally be rated at 140% of the normal  
full load current, and circuits should be analyzed to ensure  
that system load currents will not exceed the current rating  
of the fuse.  
6.38"  
9.75"  
3"DIA  
Dim.A  
(Clip  
Dim.B  
Center)  
FIGURE 14  
FIGURE 15  
FIGURE 16  
Max  
Interrupting  
Old  
E
Catalog  
Number  
Catalog  
Number  
LCX 10E  
Dim. A  
(inches)  
Dim. B  
(inches)  
Rating  
RMS (Asym)  
Figure  
Number  
RATED  
Size  
10E  
15E  
20E  
25E  
30E  
40E  
50E  
65E  
10E-1C-2.75  
15E-1C-2.75  
20E-1C-2.75  
25E-1C-2.75  
30E-1C-2.75  
40E-1C-2.75  
50E-1C-2.75  
65E-1C-2.75  
80E-1C-2.75  
100E-1C-2.75  
125E-1C-2.75  
150E-1C-2.75  
200E-1C-2.75  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
LCX 30E  
LCX 40E  
LCX 50E  
LCX 65E  
LCX 80E  
LCX 100E  
7"  
10.875"  
80,000  
80E  
100E  
125E  
150E  
200E  
125E-2C-2.75  
150E-2C-2.75  
175E-2C-2.75  
200E-2C-2.75  
225E-2C-2.75  
250E-2C-2.75  
300E-2C-2.75  
350E-2C-2.75  
400E-2C-2.75  
450E-2C-2.75  
LCX 125E  
LCX 150E  
LCX 175E  
LCX 200E  
125E  
150E  
175E  
200E  
225E  
250E  
300E  
350E  
400E  
450E  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
7"  
10.875"  
80,000  
LCX 250E  
LCX 300E  
LCX 400E  
67  

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