Lttelfuse.com

Rev: 041113

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Description

Available in both Indicating and Non-Indicating versions,

the FLNR/FLSR series of fuses set the standard for general

purpose fuses. The dual-element design provides advanced

short circuit and overload protection. FLSR series fuses

provide excellent protection for all types of circuits especially

those containing motors.

Applications

• Service entrance switches

• Switchboard mains and feeders

• Motor control central mains and motor branch circuits

• All general purpose circuits

Features/Benefits

• Indication

• Dual-element design

• Available without indication

• Current limiting

Specifications

Voltage Ratings

AC: 250 V (FLNR_ID); 600 V (FLSR_ID)

125 V (FLNR_ID 35 – 600 A);

300 V (FLSR_ID)

Interrupting Ratings

AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certified)

DC: 20 kA

Ampere Range

1

Approvals

Standard 248-12, Class RK5

UL Listed (File: E81895)

CSA Certified (File: LR29862)

Federal Specification WF-1814

(QPL- W-F-1814)

Web Resources

TC Curves, downloadable CAD drawings and other technical

information: Littelfuse.com/flsr

Littelfuse.com/flnr

ampERE RatINgs

1

6

4

8

30

80

225

1

8

2

9

35

90

250

15

1

5

10

40

100

300

2

12

45

110

350

1

6

15

50

125

400

3

3

60

150

450

4

7

20

70

175

500

1

25

200

600

*FLNR only. †FLNR, FLSR, FLSR_ID only. **FLNR, FLSR, FLSR_ID only

Recommended Fuse Holders

LFR60Series•LFR25Series

Dimensions

PleaserefertotheClassRdimensionspage2.

Peak Let-Thru Curve (600 V)

Note: For more information, see Peak Let-Thru Table

Ordering Information

typE

voltagE sERIEs amp Catalog

NUmbER

oRDERINg

NUmbER

NON-INDICAtING

600 V

FLSR

15

FLSR015

FLSR015.t

INDICAtING

600 V

FLSR_ID

15

FLSR015ID

FLSR015.tXID

NON-INDICAtING

250 V

FLNR

60

FLNR060

FLNR060.t

INDICAtING

250 V

FLNR_ID

60

FLNR060ID FLNR060.tXID

QPL

FLSR_ID