参数资料
| 型号： | TB1 |
| 厂商： | Cooper Bussmann |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | FUSE BASE NH 250A 3POLE SZ:1 |
| 标准包装： | 1 |
| 系列： | NH |
| 附件类型： | 基座 |
| 适用于相关产品： | 保险丝 |
IEC & British Standard Fuses
IEC and British Standard Fuses
Section Contents
Page
HRC fuse holders
RED indicates NEW information
Application Data
The standard range of fuses for low voltage industrial and
general purpose applications meet the requirements of
BS 88 and IEC 60269. By using advanced fuse technology,
current ratings up to 400A have compact dimensions, but
retain standard dimensional and performance requirements.
These designs are for 315/240V systems. The standard
range of fuses are available from 2-1250A in the following
tag forms: Offset Blade - Offset Bolted - Center Bolted.
Supplementary ranges cover applications up to 660Vac and
500Vdc including those with nonstandard tag fixings.
Cooper Bussmann fuses are manufactured under quality
systems independently assessed to BS 5750 (ISO 9002) and
appropriate ratings carry the ASTA 20 endorsement.
Selecting fuses is relatively simple and effective. The
following notes cover the majority of applications. For further
information contact our Application Engineers at
636-527-1270.
Circuit Loading
The current rating of the fuse should not be less than the full
load current of the circuit. The circuit should be so designed
that small overloads of long duration will not be of frequent
occurrence.
Cable Ratings & Protection
There is an increasing move away from 70°C PVC insulation
to materials that are more environmentally friendly, for
example 90°C XLPE. The ratings of fusegear, switches,
accessories, etc. are generally based upon the equipment
being connected to conductors intended to be operated at a
temperature not exceeding 70°C in normal service.
In view of the above, it is recommended that the practice of
designs based upon conductor temperatures of 70°C be
regarded as the norm. The equipment manufacturer should
be consulted to ascertain the reduction of nominal current
rating of the equipment if conductor temperatures exceeding
70°C are used. In addition, an overriding factor is often
voltage drop.
Fuses with gG characteristics protect associated cables
against both overload and short-circuit current, provided that
the current rating of the fuse 1N is equal or less than the
current carrying capacity of the cable 1z.
In motor circuits, the motor starter will provide the overload
protection and the fuses will provide the short-circuit
protection. The maximum fuse size that can be used
depends upon the type of cable used and is determined
using the appropriate K factor. The following table gives the
maximum sizes of fuses that are recommended for two
popular cables with copper conductors, 70°C PVC (K = 115)
and 90°C thermosetting (K = 143).
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
217
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| 70233-115 | PF MALE SIGNAL LCP 24MM |
| CRCW12061R54FKEA | RES 1.54 OHM 1/4W 1% 1206 SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TB-1 | 制造商:ESSENTRA COMPONENTS 功能描述:BUMPER METAL MALE THREAD #6-32 制造商:Richco 功能描述:BUMPER METAL MALE THREAD #6-32 制造商:Richco 功能描述:Bumper Metal Male Thread # 6-32 |
| TB1.5/25k1 | 制造商:NEMCO 功能描述:DT515X025 |
| TB-1.544MBD-T | 功能描述:标准时钟振荡器 1.544MHz 3.3V 25ppm -40C to 85C RoHS:否 制造商:AVX 产品:Standard Clock Oscillators 封装 / 箱体:7 mm x 5 mm 频率:75 MHz 频率稳定性:50 PPM 电源电压:2.5 V 负载电容: 端接类型:SMD/SMT 最小工作温度:0 C 最大工作温度:+ 70 C 输出格式:LVDS 尺寸: 封装:Reel 系列: |
| TB-1.544MBE-T | 制造商:TXC Corporation 功能描述:OSC MEMS 1.544 MHZ 3.3V SMD |
| TB-1.544MCD-T | 功能描述:标准时钟振荡器 1.544MHz 2.5V 25ppm -40C to 85C RoHS:否 制造商:AVX 产品:Standard Clock Oscillators 封装 / 箱体:7 mm x 5 mm 频率:75 MHz 频率稳定性:50 PPM 电源电压:2.5 V 负载电容: 端接类型:SMD/SMT 最小工作温度:0 C 最大工作温度:+ 70 C 输出格式:LVDS 尺寸: 封装:Reel 系列: |
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