Westcode Semiconductors LCW, LEW Catalog Page
Date:- 17 Mar, 2005
Data Sheet Issue:- 1
Ultra Rapid
Semiconductor Protection Fuse
BS 88 Round Body Fuses – 250V
British Standard
Voltage Rating 250V
Current Ratings from 5A to 180A
aR Characteristics
Sizes 10x28 and 17x27
Key Features:
Extremely high interrupting rating fuses for the protection of power semiconductors as per IEC
Standard 60269.1 and 4.
250V voltage rating complying with IEC 33
Non Magnetic construction
gR Characteristics for ratings 5A to 32A (LCW range) comply with VDE 636-23 and IEC 60269.4
17 x 27 models are UL recognised
aR Characteristics with current ratings from 5A to 180A (LEW or LEWI range) comply with VDE 636-
23 and IEC 60269.4
Available with or without separate trip indicator BS88-4
Microswitch reference: MC 6.3 GR 2-5 N
Data Sheet LCW, LEW Issue 1 Page 1 of 5 March, 2005
WESTCODEAn IXYS Company BS 88 Round Body Fuse - 250V
Main Characteristics:
LCW : 10x28 without trip indicator
Voltage
U
(V)
N
250
Size Ref:
5LCW
6LCW
10LCW
10x28
12LCW
16LCW
20LCW
25LCW
32LCW
Micro
Switch
UL
NN 5
NN 6
NN 10
NN 12
NN 15
NN 20
NN 25
NN 32
LEW : 17x27 without trip indicator
Voltage
U
(V)
N
250
Size Ref:
7LEW
10LEW
12LEW
16LEW
20LEW
25LEW
32LEW
35LEW
17x27
40LEW
50LEW
63LEW
80LEW
100LEW
125LEW
150LEW
160LEW
180LEW
Micro
Switch
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
UL
Current
rating
I
(A)
N
Current
rating
I
(A)
N
7
10
12
16
20
25
30
35
50
60
75
80
100
125
150
160
180
Pre-arcing
2
t @ 1 ms
I
2
I
tp(A2s)
1.3 10 11 0.6 1.0
1.8 13 15 0.7 1.2
2.4 18 20 1.2 2.1
4.3 28 33 1.6 2.8
6.7 41 48 2.0 3.5
15.0 85 100 2.2 4.0
27.0 135 160 2.6 4.7
53.0 240 280 3.0 5.4
Pre-arcing
2
I
t @ 1 ms
2
I
tp(A2s)
1.3 8.5 9.8 0.56 1.0
4.5 21 23.8 0.84 1.5
5.9 27 31 1.1 2.0
11.2 50 59 1.7 3.0
15.6 80 100 2.2 3.9
30.0 130 160 2.7 4.8
45.0 195 235 3.2 5.6
63.0 270 330 3.7 6.5
180.0 790 940 4.9 8.8
250.0 1100 1310 5.8 10.4
380.0 1670 1990 7.2 13.6
480.0 2100 2530 7.25 13.7
730.0 3350 4060 6.5 11.5
850.0 5720 6920 6.7 12.3
1250.0 7930 9590 7.4 13.6
1730.0 9600 11700 8.8 15.6
2090.0 14500 17500 9.5 17.0
Total Clearing
2
I
t @ UN (A2s)
Ip ≤ 30I
Total Clearing
2
t @ UN (A2s)
I
Ip > 30IN0.8 I
N
Power Losses @
N
Power Losses @
I
N
Tested
Interrupting
rating
160kA @ 250V
Tested
Interrupting
rating
160 kA @ 250V
Data Sheet. BS88250aR Issue 1 Page 2 of 6 March, 2005
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