NO.2662-R [ETC]

FUSE BUSS CLASS R REDUCER;


型号：	NO.2662-R
厂家：	ETC
描述：	FUSE BUSS CLASS R REDUCER
文件：	总4页 (文件大小：823K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Effective August 2018

Technical Data 1004

Supersedes March 2017

LPN-RK — 250 Vac/dc, 70-600 A,

dual element, time-delay fuses

Catalog no.*

LPN-RK-70SP

LPN-RK-80SP

LPN-RK-90SP

LPN-RK-100SP

LPN-RK-110SP

LPN-RK-150SP LPN-RK-350SP

LPN-RK-175SP LPN-RK-400SP

LPN-RK-200SP LPN-RK-450SP

LPN-RK-225SP LPN-RK-500SP

LPN-RK-250SP LPN-RK-600SP

LPN-RK-125SP LPN-RK-300SP

* Open fuse indication available on all part numbers by

inserting the suffix “I,” e.g., LPN-RK-90SPI. Requires 75Vac

minimum voltage. Indicating fuses are not Vdc rated.

Carton quantity

•ꢀ

70–100 A: 5

•ꢀ

110–600 A: 1

Typical applications

•ꢀ

Feeder and branch circuits

•ꢀ

Transformers

Catalog symbols:

•ꢀ

Motors

•ꢀ

LPN-RK-(amp)SP (non-indicating)

•ꢀ

Solenoids

•ꢀ

LPN-RK-(amp)SPI (indicating)

•ꢀ

General purpose circuits

Features and benefits

Description:

•ꢀ

Industry’s only UL Listed and CSA Certified fuse

Ultimate protection Class RK1 dual element,

current-limiting, time-delay fuses available with

optional open fuse indication.

with a 300 kA interrupting rating that allows for

simple, worry-free installation in virtually any

application.

•ꢀ

Speciﬁcations:

Fast short-circuit protection and dual-element,

time-delay performance provide ultimate

protection.

Ratings

•ꢀ

Volts 250Vac/dc*

•ꢀ

Reduces existing fuse inventory by up to 33%

when upgrading to Low-Peak fuses.

•ꢀ

Amps 70-600 A

•ꢀ

Consistent 2:1 ampacity ratios for all Low-Peak

•ꢀ

fuses make selective coordination easy.

•ꢀ 300kA Vac RMS Sym.

•ꢀ 100kA Vdc

•ꢀ

Time-delay permits 130% FLA sizing for back-up

motor protection.

* Indicating versions not Vdc rated.

•ꢀ

Current-limitation protects downstream

components against damaging thermal and

magnetic effects of short-circuit currents.

Agency information

•ꢀ

UL Listed, Guide JDDZ, File E4273

•ꢀ

Protects against single-phase motor damage.

•ꢀ

CSA Certified, Class 1422-02, File 53787,

Class RK1 per CSA C22.2 No. 248.12

•ꢀ

Proper sizing can provide “no damage” Type 2

coordinated protection for NEMA and IEC motor

controllers.

•ꢀ

Technical Data 1004

LPN-RK — 250 Vac/dc, 70-600 A, dual element, time-delay fuses

Effective August 2018

Recommended fuse blocks

Catalog no.

Amps

100

1-Pole

2-Pole

3-Pole

RM25100-1CR

RM25200-1CR

RM25400-1CR

RM25600-1CR

RM25100-2CR

RM25200-2CR

RM25400-2CR

RM25600-2CR

RM25100-3CR

RM25200-3CR

RM25400-3CR

RM25600-3CR

200

400

600

For additional information on the RM Series of 250 volt fuse blocks,

see product brochure # 3192.

Fuse Reducers For Class R Fuses

Desired fuse (case)

Equipment fuse clips size

Catalog no. (Pairs)

250V

200 A

100 A

200 A

100 A

200 A

400 A

NO.2621-R

NO.2641-R

NO.642-R

400 A

NO.2661-R

NO.2662-R

NO.2664-R†

600 A

† Single reducer only (pair not required).

For additional information on Class R fuse reducers, see data sheet

no. 1118.

Dimensions — in

Amp rating

70-100

5.88

7.13

8.63

10.38

1.10

1.61

2.36

2.88

110-200

225-400

450-600

Eaton.com/bussmannseries

LPN-RK — 250 Vac/dc, 70-600 A, dual element, time-delay fuses

Technical Data 1004

Effective August 2018

Time-current curves - average melt

AMP RATING

CURRENT IN AMPS

NOTE: 60 Amp fuse curve is ferrule style and included to show

only relative performance. For actual 60 amp time-current curve

performance, see data sheet no. 1003.

Eaton.com/bussmannseries

Technical Data 1004

LPN-RK — 250 Vac/dc, 70-600 A, dual element, time-delay fuses

Effective August 2018

Current-limitation curves

Current-limiting effects

Prosp.

S.C.C.

400,000

300,000

Let-through current (apparent RMS Sym. vs. fuse rating)

—

100 A

1000

2000

3000

4000

5000

6000

7000

200 A

1000

2000

3000

4000

5000

6000

7000

8000

7000

8000

9000

11,000

12,000

400 A

1000

600 A

1000

200,000

1000

2000

100,000

90,000

80,000

70,000

60,000

50,000

3000

5000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

150,000

200,000

250,000

300,000

7000

9000

600A

400A

40,000

30,000

8000

11,000

12,000

13,000

14,000

16,000

17,000

19,000

20,000

21,000

22,000

8000

200A

100A

9000

20,000

9000

10,000

11,000

12,000

13,000

15,000

16,000

17,000

18,000

10,000

9000

8000

7000

6000

5000

4000

3000

2000

1000

RMS SYMMETRICAL CURRENT IN AMPS

A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS)

The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this document are

by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the

end user with design applications. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit

distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once

a product has been selected, it should be tested by the user in all possible applications.

Eaton

1000 Eaton Boulevard

Cleveland, OH 44122

Eaton.com

Bussmann Division

114 Old State Road

Ellisville, MO 63021

United States

Eaton.com/bussmannseries

Eaton, Bussmann and Low-Peak are valuable

trademarks of Eaton in the U.S. and other

countries. You are not permitted to use

the Eaton trademarks without prior written

consent of Eaton.

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