Figures B13-B19 —TypicalTime-to-Trip Curve at 20°C

VLR (data at 25°C)

A = VLR170F

B = VLR175F

C = VLR230F

Figure B13

Fault Current (A)

100

10

1

0.10

0.01

0.001

110100

A

A

B

C

B

C

Table B4 — Dimensions in Millimeters (Inches)

(Cont’d)

Part

Number

A

B

C

D

E

F

G

Figure

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

LR4

LR4-190F

19.9

22.1

4.9

5.5

0.6

1.0

5.5

7.5

5.5

7.5

3.9

4.1

—

—

B7

(0.796) (0.884)

(0.196) (0.220)

(0.024) (0.040)

(0.220) (0.300)

(0.220) (0.300)

(0.156) (0.164)

—

—

LR4-260F

20.9

23.1

4.9

5.5

0.6

1.0

4.1

5.5

4.1

5.5

3.9

4.1

—

—

B7

(0.836) (0.924)

(0.196) (0.220)

(0.024) (0.040)

(0.164) (0.220)

(0.164) (0.220)

(0.156) (0.164)

—

—

LR4-380F

24.0

26.0

6.9

7.5

0.6

1.0

4.1

5.5

4.1

5.5

4.9

5.1

—

—

B7

(0.960) (1.040)

(0.276) (0.300)

(0.024) (0.040)

(0.164) (0.220)

(0.164) (0.220)

(0.196) (0.204)

—

—

LR4-380XF

32.2

35.8

4.9

5.5

0.6

1.0

5.5

7.5

5.5

7.5

3.9

4.1

—

—

B7

(1.288) (1.432)

(0.196) (0.220)

(0.024) (0.040)

(0.220) (0.300)

(0.220) (0.300)

(0.156) (0.164)

—

—

LR4-450F

24.0

26

9.9

10.5

0.6

1.0

5.3

6.7

5.3

6.7

5.9

6.1

—

—

B7

(0.960) (1.040)

(0.396) (0.420)

(0.024) (0.040)

(0.212) (0.268)

(0.212) (0.268)

(0.236) (0.244)

—

—

LR4-550F

35.0

37.0

6.9

7.5

0.6

1.0

5.3

6.7

5.3

6.7

4.9

5.1

—

—

B7

(1.400) (1.480)

(0.276) (0.300)

(0.024) (0.040)

(0.212) (0.268)

(0.212) (0.268)

(0.196) (0.204)

—

—

LR4-600F

24.0

26.0

13.9

14.5

0.6

1.0

4.1

5.5

4.1

5.5

5.9

6.1

—

—

B7

(0.960) (1.040)

(0.556) (0.580)

(0.024) (0.040)

(0.164) (0.220)

(0.164) (0.220)

(0.236) (0.244)

—

—

LR4-600XF

40.5

42.7

6.9

7.5

0.6

1.0

5.2

6.8

5.2

6.8

4.9

5.1

—

—

B7

(1.620) (1.708)

(0.276) (0.300)

(0.024) (0.040)

(0.208) (0.272)

(0.208) (0.272)

(0.196) (0.204)

—

—

LR4-730F

27.1

29.1

13.9

14.5

0.6

1.0

4.1

5.5

4.1

5.5

5.9

6.1

—

—

B7

(1.084) (1.164)

(0.556) (0.580)

(0.024) (0.040)

(0.164) (0.220)

(0.164) (0.220)

(0.236) (0.244)

—

—

LR4-900F

45.4

47.6

7.9

8.5

0.9

1.3

4.6

6.2

4.6

6.2

5.9

6.1

—

—

B7

(1.816) (1.904)

(0.316) (0.340)

(0.036) (0.052)

(0.184) (0.248)

(0.184) (0.248)

(0.236) (0.244)

—

—

LR4-1300SSF

61.5

66.5

9.4

10.0

0.9

1.3

5.0

7.5

5.0

7.5

5.9

6.1

—

—

B8

(2.460) (2.660)

(0.376) (0.400)

(0.036) (0.052)

(0.200) (0.300)

(0.200) (0.300)

(0.236) (0.244)

—

—

RoHS Compliant, ELV Compliant

Specifications subject to change without notice. ©2016 Littelfuse, Inc.

PolySwitch Resettable Devices

Strap Battery Devices