WESTCODE An IXYS Company
BS 88 Round Body Fuses – 660V
Main Characteristics:
MW : 36x55 without trip indicator
Total Clearing I2t @ UN
(A2s)
Ip ≤ 50In Ip > 50 In 0.8 In
Power Losses
Current Pre-arcing
Tested
Interrupting
rating
Voltage
UN (V)
Micro
Size
Ref:
rating
IN(A)
I2t @ 1 ms
I2tp(A2s)
@
Switch
In
N
N
N
N
N
N
N
N
150
180
200
250
280
315
355
400
160MW
180MW
200MW
250MW
280MW
315MW
355MW
400MW
2880
5350
12600
22500
14500
25500
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
9510
40000
46000
21400
29100
38100
48200
72000
97000
110000
145000
180000
215000
305000
36x55
690V
200kA @ 690V
125000
157000
190000
265000
42.6
48.5
50
MWI : 36x55 with separated trip indicator
Total Clearing I2t @ UN
(A2s)
Ip ≤ 50In Ip > 50 In
Power Losses
@
Current Pre-arcing
Tested
Interrupting
rating
Voltage
UN (V)
Micro
Size
Ref:
rating
IN(A)
I2t @ 1 ms
I2tp(A2s)
Switch
0.8 In
In
Y
Y
Y
Y
Y
Y
Y
Y
150
180
200
250
280
315
355
400
160MWI
180MWI
200MWI
250MWI
280MWI
315MWI
355MWI
400MWI
2880
5350
12600
22500
14500
25500
18.9
35.3
19.1
17.7
18.7
20.3
22.7
25.9
26.7
35.7
33.1
34.5
38
9510
40000
46000
21400
29100
38100
48200
72000
97000
110000
145000
180000
215000
305000
36x55
690V
200kA @ 690V
125000
157000
190000
265000
42.6
48.5
50
Notes: Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference : MS 6.3 GR 2-5N
MMW : 2x36x55 without trip indicator
Total Clearing I2t @ UN
(A2s)
Ip ≤ 50In Ip > 50 In 08 In
Power Losses
@
Current Pre-arcing
Tested
Interrupting
rating
Voltage
UN (V)
Micro
Size
Ref:
rating
IN(A)
I2t @ 1 ms
I2tp(A2s)
Switch
In
N
N
N
N
N
N
N
N
N
N
175
200
235
315
355
400
450
500
630
710
2880
4700
13800
24000
16000
27000
24.7
18.4
21
47.6
180MMW
200MMW
235MMW
315MMW
355MMW
400MMW
450MMW
500MMW
630MMW
710MMW
33
37.6
59
6920
34500
39000
13700
25200
21200
65600
85600
152000
193000
60000
68000
31.5
33.1
34.8
34.6
37.4
45.4
51.8
106000
100000
300000
390000
630000
760000
120000
110000
340000
440000
720000
860000
62
2x36x55
690V
200kA @ 690V
62.3
63.8
69
85.2
97
Data Sheet. xMW & xMMW Issue 1
Page 2 of 5
March, 2005