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LR600

更新时间： 2024-10-28 22:31:03
品牌 Logo 应用领域
力特 - LITTELFUSE /
页数 文件大小 规格书
3页 192K
描述
LLNRK/LLSRK Series POWR-PRO Class RK1

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中文翻译

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LR600 数据手册

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LLNRK/LLSRK Series POWR-PRO® Class RK1  
ꢀ
ꢀ
250/600 VAC Dual-Element, Time-Delay 1/10 – 600 Amperes  
SPECIFICATIONS  
Voltage Ratings: AC: 250 Volts (LLNRK)  
600 Volts (LLSRK)  
DC: 125 Volts (LLNRK)  
300 Volts (LLSRK)  
Interrupting Ratings:  
AC: 200,000 amperes rms symmetrical  
300,000 amperes rms symmetrical  
(Littelfuse self-certified)  
DC: 20,000 amperes  
Ampere Range: 1/10 – 600 amperes  
Approvals:  
AC: Standard 248-12, Class RK1  
UL Listed (File No: E81895)  
CSA Certified (File No: LR29862)  
QPL: Federal Specification No.WF-1814  
DC: Littelfuse self-certified  
AMPERE RATINGS  
1
10  
⁄
1
28⁄10  
3
61⁄  
7
8
9
4
25  
30  
35  
40  
45  
50  
60  
70  
80  
90  
300  
350  
400  
450  
500  
600  
15  
11⁄  
8
100  
110  
125  
150  
175  
200  
225  
250  
100  
⁄
2
11⁄  
4
32⁄10  
10  
⁄
1
*
⁄4  
⁄10  
⁄10  
⁄2  
14⁄10  
16⁄10  
18⁄10  
2
31⁄  
2
3
4
1
6
4
10  
12  
15  
41⁄  
5
2
⁄
⁄10  
10  
21⁄  
21⁄  
4
56⁄10  
6
171⁄  
2
8
2
20  
* LLSRK Only.  
Example part number (series & amperage): LLNRK 450  
RECOMMENDED FUSE BLOCKS  
LR250 series (LLNRK Series)  
LR600 series (LLSRK Series)  
Refer to Fuse Block section of this catalog for additional  
information.  
FEATURES/BENEFITS  
Littelfuse LLNRK and LLSRK series POWR-PRO® fuses  
provide superior overload and short circuit protection for  
service entrance, main, feeder and general-purpose branch  
circuits up to 600 amperes.  
ꢀ
Extremely current limiting — Reduces damage to circuits  
and equipment under short-circuit conditions. Stops  
damaging short circuits faster than any mechanical  
protective device.  
LLNRK/LLSRK series fuses can be installed in existing Class  
H fuse blocks to upgrade systems containing lower interrupt-  
ing rating Class H one-time or renewable fuses.  
ꢀ
300kA Interrupting Rating — Littelfuse self-certified to  
300,000 amperes as standard. Meets future trend towards  
higher available short circuit currents.  
APPLICATIONS  
ꢀ
Reduced costs — Current limiting design often permits  
All general-purpose circuits  
Motors  
use of readily available, less costly equipment. Low  
resistance design reduces power consumption and utility  
bills.  
Transformers  
ꢀ
Excellent time delay — True dual-element construction,  
Solenoids  
with separate non-fatiguing thermally-reversible spring-  
loaded thermal overload element, withstands repeated  
surges within rated time delay without opening needlessly.  
Eliminates needless downtime caused by power surges or  
equipment demands.  
Fluorescent lighting  
All system components with high in-rush currents  
12  
123

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