Littelfuse 321 User Manual

MM

M

MM

INIAINIA

INIA

INIAINIA

TURETURE

TURE

TURETURE

F F

F

F F

USESUSES

USES

USESUSES

5x25mm5x25mm

5x25mm/ No.

5x25mm5x25mm

DimensionsDimensions

Dimensions

DimensionsDimensions

- 0,2

+0,1

Ø5,2

25

±0,5

Kappe mit Kennmelder
cap with indicator

321321

321

321321

IndicatorIndicator

Indicator

IndicatorIndicator

TT

ime-Current Characteristicime-Current Characteristic

T

ime-Current Characteristic

TT

ime-Current Characteristicime-Current Characteristic

Mitteträge (M)

StandardStandard

Standard

StandardStandard

DIN 41577, T.2

ApprovalsApprovals

Approvals

ApprovalsApprovals

None

, 250V, 250V

, 250V

, 250V, 250V

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

-25ºC to +70ºC (consider de-rating)

Climatic CategoryClimatic Category

Climatic Category

Climatic CategoryClimatic Category

-25ºC/+70ºC/21 days (EN 60068-1..3)

Stock ConditionsStock Conditions

Stock Conditions

Stock ConditionsStock Conditions

+10ºC to +60ºC
relative humidity ≤ 75% yearly average,
without dew

Vibration ResistanceVibration Resistance

Vibration Resistance

Vibration ResistanceVibration Resistance

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

MarkingMarking

Marking

MarkingMarking

emperatureemperature

emperature

emperatureemperature

, M, Current Rating, 250V, C

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 1.5 x I

80mA ... 100mA
125 mA ... 630 mA 60ms ... 2s

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 color of indicator
Current Code Rating Capacity 1.0 x I

80mA 0080 250V
100mA 0100 250V
125mA 0125 250V

160mA 0160 250V
200mA 0200 250V
250mA 0250 250V
315mA 0315 250V
400mA 0400 250V

500mA 0500 250V
630mA 0630 250V

1

operating voltage ≥ 10 V

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

>1h <2min -

Rated

2.1 x I

Rated

1
1
1

1
1
1
1
1
1
1

2.75 x I

≤≤

80 80

≤

80

≤≤

80 80

80A @ 250 V AC

cos ϕ = 1.0

4 x I

Rated

40ms ... 500ms

% 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).

50Hz

10 x I

Rated

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

one thousand.

Rated

> 5ms

Rated

520 0.015 grey
500 0.030 red
500 0.053 velvet

480 0.11 orange
400 0.23 blue
500 0.38 yellow
470 0.53 black
400 0.75 brown

400 1.5 white
380 2.3 green

1.5 x I

on request

Rated

10 x I

Rated

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

321

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

5x25mm5x25mm

5x25mm/ No.

5x25mm5x25mm

321321

321

321321

ime (sec.)ime (sec.)

ime (sec.)ime (sec.)

ime (sec.)
TT

TT

T

II

/ I / I

I

/ I

II

/ I / I

FaultFault

Fault

FaultFault

Contact Littelfuse for individual I-t curves

RatedRated

Rated

RatedRated

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