WESTCODE
An
IXYS Company
BS 88 Round Body Fuses – 660V
Date:- 17 Mar, 2005
Data Sheet Issue:- 1
Ultra Rapid
Semiconductor Protection Fuse
BS 88 Round Body Type Fuses 690V
British Standard
Voltage Rating - 690V
Current Ratings from 160A to 710A
aR Characteristics
Sizes 36x55 and 2x36x55
Key Features:
Extremely high interrupting rating fuses for the protection of power semiconductors as per IEC
Standard 60269.1 and 4.
690V voltage rating complying with IEC 33
Non Magnetic construction
aR Characteristics with current ratings from 75 to 800A in accordance with VDE 636-23 and EC
60269.4
The models available with or without separate or integrated trip indicator
Microswitch reference MC 6,3 GR 2-5N
Data Sheet. xMW & xMMW Issue 1
Page 1 of 5
March, 2005
WESTCODE
An
IXYS Company
BS 88 Round Body Fuses – 660V
Main Characteristics:
MW : 36x55 without trip indicator
Size
Voltage
U
N
(V)
Ref:
160MW
180MW
200MW
36x55
690V
250MW
280MW
315MW
355MW
400MW
Micro
Switch
N
N
N
N
N
N
N
N
Current
rating
I
N
(A)
150
180
200
250
280
315
355
400
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(A
2
s)
2880
5350
9510
21400
29100
38100
48200
72000
Total Clearing I
2
t @ U
N
(A
2
s)
Ip
≤
50In Ip > 50 In
12600
22500
40000
97000
125000
157000
190000
265000
14500
25500
46000
110000
145000
180000
215000
305000
Power Losses
@
0.8 In
In
18.9
19.1
17.7
18.7
20.3
22.7
25.9
26.7
35.3
35.7
33.1
34.5
38
42.6
48.5
50
200kA @ 690V
Tested
Interrupting
rating
MWI : 36x55 with separated trip indicator
Size
Voltage
U
N
(V)
Ref:
160MWI
180MWI
200MWI
36x55
690V
250MWI
280MWI
315MWI
355MWI
400MWI
Micro
Switch
Y
Y
Y
Y
Y
Y
Y
Y
Current
rating
I
N
(A)
150
180
200
250
280
315
355
400
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(A
2
s)
2880
5350
9510
21400
29100
38100
48200
72000
Total Clearing I
2
t @ U
N
(A
2
s)
Ip
≤
50In Ip > 50 In
12600
22500
40000
97000
125000
157000
190000
265000
14500
25500
46000
110000
145000
180000
215000
305000
Power Losses
@
0.8 In
In
18.9
19.1
17.7
18.7
20.3
22.7
25.9
26.7
35.3
35.7
33.1
34.5
38
42.6
48.5
50
200kA @ 690V
Tested
Interrupting
rating
Notes: Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference :
MS 6.3 GR 2-5N
MMW : 2x36x55 without trip indicator
Size
Voltage
U
N
(V)
Ref:
180MMW
200MMW
235MMW
315MMW
2x36x55
690V
355MMW
400MMW
450MMW
500MMW
630MMW
710MMW
Micro
Switch
N
N
N
N
N
N
N
N
N
N
Current
rating
I
N
(A)
175
200
235
315
355
400
450
500
630
710
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(A
2
s)
2880
4700
6920
13700
25200
21200
65600
85600
152000
193000
Total Clearing I
2
t @ U
N
(A
2
s)
Ip
≤
50In Ip > 50 In
13800
24000
34500
60000
106000
100000
300000
390000
630000
760000
16000
27000
39000
68000
120000
110000
340000
440000
720000
860000
Power Losses
@
08 In
In
24.7
18.4
21
31.5
33.1
34.8
34.6
37.4
45.4
51.8
47.6
33
37.6
59
62
62.3
63.8
69
85.2
97
200kA @ 690V
Tested
Interrupting
rating
Data Sheet. xMW & xMMW Issue 1
Page 2 of 5
March, 2005
WESTCODE
An
IXYS Company
BS 88 Round Body Fuses – 660V
MMWI : 2x36x55 with separated trip indicator
Size
Voltage
U
N
(V)
Ref:
180MMWI
200MMWI
235MMWI
315MMWI
2x36x55
690V
355MMWI
400MMWI
450MMWI
500MMWI
630MMWI
710MMWI
Micro
Switch
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Current
rating
I
N
(A)
175
200
235
315
355
400
450
500
630
710
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(A
2
s)
2880
4700
6920
13700
25200
21200
65600
85600
152000
193000
Total Clearing I
2
t @ U
N
(A
2
s)
Ip
≤
50In Ip > 50 In
13800
24000
34500
60000
106000
100000
300000
390000
630000
760000
16000
27000
39000
68000
120000
110000
340000
440000
720000
860000
Power Losses
@
0.8 In
In
24.7
18.4
21
31.5
33.1
34.8
34.6
37.4
45.4
51.8
47.6
33
37.6
59
62
62.3
63.8
69
85.2
97
200kA @ 690V
Tested
Interrupting
rating
Notes: Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference :
MC 36 GR 2.5
Electrical Characteristics:
Times vs current characteristics
These curves indicate, for each rated current, the pre-arcing time vs. the RMS pre-arcing current.
Tolerance for the mean pre-arcing current ± 10%
MMW & MMWI
2x36x55
MW & MWI
36x55
Data Sheet. xMW & xMMW Issue 1
Page 3 of 5
March, 2005
WESTCODE
An
IXYS Company
BS 88 Round Body Fuses – 660V
Corrective Factor
The mean curves show the variation of the total clearing time (I
2
t
t
) and the total clearing duration t
t
as a
function of operating voltage U.
MW & MWI - size 36x55
MMW & MMWI - size 2x36x55
Peak Arc Voltage
This curve shows the peak value Um of the arc voltage which appears across the fuse link as a function
of the operating voltage U @ cos
ϕ
= 0.15.
MW & MWI - size 36x55
MMW & MMWI – size 2x36x55
Data Sheet. xMW & xMMW Issue 1
Page 4 of 5
March, 2005
WESTCODE
An
IXYS Company
BS 88 Round Body Fuses – 660V
Outline Drawings and Ordering Information:
MW – 207gm
MWI – 207gm
MMW – 400gm
MMWI – 400gm
ORDERING INFORMATION
Style
BS 88 Round Body
Voltage
660V
Current Rating (A)
160 - 710
(Please quote code as below)
Type
MW & MMW
Indicator
I
Order code: e.g.
315MMWI
= BS 88 660V Round Body 315Amp fuse with Trip Indicator
IXYS Semiconductor GmbH
Edisonstraße 15
D-68623 Lampertheim
Tel: +49 6206 503-0
Fax: +49 6206 503-627
E-mail:
marcom@ixys.de
IXYS Corporation
3540 Bassett Street
Santa Clara CA 95054 USA
Tel: +1 (408) 982 0700
Fax: +1 (408) 496 0670
E-mail:
sales@ixys.com
Westcode Semiconductors Ltd
Langley Park Way Langley Park
Chippenham Wiltshire SN15 1GE
Tel: +44 (0)1249 444524
Fax: +44 (0)1249 659448
E-mail:
WSL.sales@westcode,com
Westcode Semiconductors Inc
3270 Cherry Avenue
Long Beach CA 90807 USA
Tel: +1 (562) 595 6971
Fax: +1 (562) 595 8182
E-mail:
WSI.sales@westcode.com
www.westcode.com
www.ixys.com
The information contained herein is confidential and is protected by Copyright. The information may not be used or disclosed
except with the written permission of and in the manner permitted by the proprietors Westcode Semiconductors Ltd.
In the interest of product improvement, Westcode reserves the right to change specifications at any time without prior notice.
© Westcode Semiconductors Ltd.
Data Sheet. xMW & xMMW Issue 1
Page 5 of 5
March, 2005
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