Littelfuse 231 User Manual

MM

M

MM

INIAINIA

INIA

INIAINIA

TURETURE

TURE

TURETURE

F F

F

F F

USESUSES

USES

USESUSES

6.3x32 mm / No.
LeadfreeLeadfree

Leadfree

LeadfreeLeadfree

Dimensions (mm)Dimensions (mm)

Dimensions (mm)

Dimensions (mm)Dimensions (mm)

∅ 6,3

32

231231

231

231231

Special TSpecial T

Special T

Special TSpecial T

TT

ime-Current Characteristicime-Current Characteristic

T

ime-Current Characteristic

TT

ime-Current Characteristicime-Current Characteristic

Very Quick Acting (FF)

StandardStandard

Standard

StandardStandard

None

ApprovalsApprovals

Approvals

ApprovalsApprovals

None

FeaturesFeatures

Features

FeaturesFeatures

Designed for semiconductor protection
For high voltage applications
High breaking capacity
Pluggable into clips or shocksafe holders

ype, 500 Vype, 500 V

ype, 500 V

ype, 500 Vype, 500 V

, FF, FF

, FF

, FF, FF

SpecificationsSpecifications

Specifications

SpecificationsSpecifications

PackagingPackaging

Packaging

PackagingPackaging

002: Pack (100 pcs.)

MaterialsMaterials

Materials

MaterialsMaterials

Tube: Ceramic
End Caps: Nickel-plated brass

Operating TOperating T

Operating T

Operating TOperating T

-25 ºC to +70 ºC (consider de-rating)

Climatic CategoryClimatic Category

Climatic Category

Climatic CategoryClimatic Category

-25 ºC/+70 ºC/21 days (EN 60068-1..3)

Stock ConditionsStock Conditions

Stock Conditions

Stock ConditionsStock Conditions

+10 ºC to +60 ºC
relative humidity ≤ 75 % yearly average,
without dew, maximum value for 30 days-95 %

Vibration ResistanceVibration Resistance

Vibration Resistance

Vibration ResistanceVibration Resistance

24 cycles at 15 min. each (EN 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10 g acceleration

MarkingMarking

Marking

MarkingMarking

, FF, Current Rating, 500 V

Unit WeightUnit Weight

Unit Weight

Unit WeightUnit Weight

2.5 g (approx.)

emperatureemperature

emperature

emperatureemperature

Limits for Pre-arcing TimeLimits for Pre-arcing Time

Limits for Pre-arcing Time

Limits for Pre-arcing TimeLimits for Pre-arcing Time

Rated Current 1.0 x I

2.00 A ... 16.00 A > 1 h < 30 min 2 ms ... 100 ms 1 ms ... 25 ms < 3 ms

Permissible continuous operating current is Permissible continuous operating current is

Permissible continuous operating current is

Permissible continuous operating current is Permissible continuous operating current is

Rated Amp Voltage Breaking Voltage Drop Power Dissipation Melting Integral Approvals
Current Code Rating Capacity 1.0 x I

2.00 A 1200 500 V 800 3.0 0.35

2.50 A 1250 500 V 800 3.0 0.44

3.15 A 1315 500 V 800 3.0 0.75

2

4.00 A 1400 500 V 700 3.6 1.6

2

5.00 A 1500 500 V 600 3.6 2.5

2

6.30 A 1630 500 V 600 3.6 5

2

8.00 A 1800 500 V 600 5.2 10

2

10.00 A 2100 500 V 500 5.2 20

2

12.50 A 2125 500 V 500 6.3 38

1,2

16.00 A 2160 500 V 480 6.3 68

1

16.00 A: 0.9 x I

2

Depending on the application and mounting, the fuse heating at max. ambient temperature in a closed fuseholder should be considered.

Note: 1.00 means the number one with two decimal places. 1,000 means the number

N

> 1 h

1

1.5 x I

N

2.75 x I

N

≤≤

80 80

≤

80

≤≤

80 80

1000A / 500VAC

cos ϕ = 1.0

4 x I

N

% at ambient temperature of 23ºC (73.4ºF).% at ambient temperature of 23ºC (73.4ºF).

% at ambient temperature of 23ºC (73.4ºF).

% at ambient temperature of 23ºC (73.4ºF).% at ambient temperature of 23ºC (73.4ºF).

50-60Hz

10 x I

N

max. (mV) max. (W) max. (A2s)

one thousand.

N

N

1.0 x I

N

10 x I

N

None

012006

OrderOrder

Order

OrderOrder
InformationInformation

Information

InformationInformation

Qty.Qty.

Qty.

Qty.Qty.

Order-Order-

Order-

Order-Order­Number Number

Number

Number Number

In our continuing strategy to deliver unparalleled circuit protection solutions,

technical expertise and application leadership, we proudly introduce the

WICKMANN Group and its products to the Littelfuse portfolio.

SeriesSeries

Series

SeriesSeries

231

Amp Code PackagingAmp Code Packaging

Amp Code Packaging

Amp Code PackagingAmp Code Packaging

Specifications are subject

to change without notice

www.littelfuse.com

MM

M

MM

INIAINIA

INIA

INIAINIA

TURETURE

TURE

TURETURE

F F

F

F F

USESUSES

USES

USESUSES

1

0

0

,

0

0

0

1

0

,

0

0

0

1

,

0

0

0

1

0

0

1

0

6.3x32mm / No.

I-t Ch ar act er ist ics

(Min-Max Limit)

231231

231

231231

ime (sec.)ime (sec.)

ime (sec.)ime (sec.)

ime (sec.)
TT

TT

T

1

0

.

1

0

.

0

1

0

.

0

0

1

23456789110

II

/ I / I

I

/ I

II

/ I / I

FaultFault

Fault

FaultFault

Contact Littelfuse for individual I-t curves

RatedRated

Rated

RatedRated

151.5

012006

In our continuing strategy to deliver unparalleled circuit protection solutions,

technical expertise and application leadership, we proudly introduce the

WICKMANN Group and its products to the Littelfuse portfolio.

www.littelfuse.com