LPN-RK-1-1/4SP Cooper/Bussmann, LPN-RK-1-1/4SP Datasheet

LPN-RK-1-1/4SP

Manufacturer Part Number

LPN-RK-1-1/4SP

Description

Manufacturer

Cooper/Bussmann

Type

Dual Elementr

Datasheet

1.LPN-RK-1-14SP.pdf (2 pages)

Specifications of LPN-RK-1-1/4SP

Acting

Slow Blow

Voltage Rating (vac)

250V

Voltage Rating (vdc)

250V

Current Rating

1.25A

Mounting

Surface Mount

Product Depth (mm)

Not Requiredmm

Product Height (mm)

Not Requiredmm

Lead Free Status / RoHS Status

Compliant

Current page: 1 of 2
Download datasheet (248Kb)

Catalog Symbol: LPN-RK_SP (non-indicating version)

Ratings:

Volts – 250Vac/dc (70-600A)

Agency Information:

CE, UL Listed–Special Purpose*, Guide JFHR, File E56412

CSA Certified, (200kA IR) Class 1422-02, File 53787,

Class RK1 per CSA C22.2 No. 248.12

* Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.

Catalog Numbers - Non-indicating versions

LPN-RK-70SP

LPN-RK-80SP

LPN-RK-90SP

LPN-RK-100SP

LPN-RK-110SP

LPN-RK-125SP

Carton Quantity and Weight

Ampere

Ratings

70–100

110–200

225–400

450–600

**Weight per carton.

0310 BU-SB08916

Catalog Numbers - Indicating versions

LPN-RK-70SPI

LPN-RK-80SPI

LPN-RK-90SPI

LPN-RK-100SPI

LPN-RK-110SPI

LPN-RK-125SPI

Low-Peak

Indicating & Non-indicating Class RK1 – 250 Volt 70-600 Amps

LPN-RK_SPI & LPN-RK_SP Series

IR – Vac: 300kA RMS Sym.

– Vdc: 100kA

Carton

Dual-Element, Time-Delay Fuses

LPN-RK_SPI (indicating version)

Qty.

LPN-RK-150SP

LPN-RK-175SP

LPN-RK-200SP

LPN-RK-225SP

LPN-RK-250SP

LPN-RK-300SP

LPN-RK-150SPI

LPN-RK-175SPI

LPN-RK-200SPI

LPN-RK-225SPI

LPN-RK-250SPI

LPN-RK-300SPI

Lbs.

1.9

0.9

2.0

3.0

Weight**

LPN-RK-350SP

LPN-RK-400SP

LPN-RK-450SP

LPN-RK-500SP

LPN-RK-600SP

LPN-RK-350SPI

LPN-RK-400SPI

LPN-RK-450SPI

LPN-RK-500SPI

LPN-RK-600SPI

—

Kg.

0.9

0.4

0.9

1.4

Dimensions - in

Features:

• Current-limiting for maximum short-circuit protection.

• Type 2 “No Damage” protection for IEC and NEMA starters

• High in-rush current motor protection.

• Time-delay that permits 130% FLA sizing for back-up motor

• Provides protection against single-phase motor damage.

• Low watt loss power consumption.

• Electrically isolated end caps.

• 250Vdc, UL Listed, CSA Certified.

Applications:

• Branch distribution

• Motors

• Transformers

• Solenoids

• General purpose circuits

Fuse Reducers For Class R Fuses

Equipment

Fuse Clips

200A

400A

600A

***Reducer 2621-R does not apply to 70 through 100 amp Low-Peak fuses.

****Single reducer only (pair not required).

For additional information on Class R fuse reducers, see Data Sheet 1118.

Amp Ratings

when properly sized.

protection.

Page 1 of 2

110-200

225-400

450-600

70-100

Fuse (Case)

Desired

10.38 (± 0.094)

100A

200A

100A

200A

400A

Size

5.88 (± 0.062)

7.13 (± 0.062)

8.63 (± 0.094)

Data Sheet 1004

Recommended fuseblocks for

Class R 250V fuses

See Data Sheet: 1110

“A”

Catalog Number

No. 2621-R***

No. 2641-R

No. 642-R

No. 2661-R

No. 2662-R

No. 2664-R****

1.10 (± 0.020)

1.61 (± 0.020)

2.36 (± 0.020)

2.88 (± 0.020)

(Pairs)

600V

“B”

Related parts for LPN-RK-1-1/4SP

LPN-RK-1-1/4SP Summary of contents

Page 1

... Low-Peak Dual-Element, Time-Delay Fuses ® Indicating & Non-indicating Class RK1 – 250 Volt 70-600 Amps LPN-RK_SPI & LPN-RK_SP Series Catalog Symbol: LPN-RK_SP (non-indicating version) LPN-RK_SPI (indicating version) Ratings: Volts – 250Vac/dc (70-600A) IR – Vac: 300kA RMS Sym. – Vdc: 100kA Agency Information: CE, UL Listed– ...

Page 2

Current Limitation Curves 400,000 100,000 10,000 A 1,000 RMS SYMMETRICAL CURRENTS IN AMPS A-B=ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS) Current-Limiting Effects Prosp. Let-Through Current (Apparent RMS S.C.C. Symmetrical) Versus Fuse Rating 100A 200A 5,000 2,100 3,150 10,000 2,600 ...

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