High Speed Fuses
North American — FWH 500V: 35-1600A
FWH 35-200A(B) & 900-1600A(A): 500V
Time-Current Curve
10
4
6
4
2
10
3
FWH 225-800A: 500V
Time-Current Curve
10
3
6
4
2
10
2
10
2
FWH-350A
FWH-400A
FWH-500A
FWH-600A
FWH-800A
10
1
FWH-900A
FWH-1000A
FWH-1200A
FWH-1400A
FWH-1600A
6
4
2
10
1
6
4
2
10
0
Virtual Pre-Arcing Time In Seconds
10
0
6
4
2
10
–1
6
4
2
10
–2
6
4
2
10
–3
FWH-35B
FWH-40B
FWH-45B
FWH-50B
FWH-60B
FWH-70B
FWH-80B
FWH-90B
FWH-100B
FWH-125B
FWH-150B
FWH-175B
FWH-200B
10
–1
10
–2
6
4
2
10
–4
2
4
6
8
10
2
2
10
3
Prospective Current In Amper es RMS
2
4
6
8
4
6
8
10
4
10
–3
10
–4
10
2
10
3
10
4
Prospective Current In Amperes RMS
10
5
Peak Let-Through Curve
10
5
FWH-1600A
6
4
FWH-1400A
FWH-1200A
FWH-1000A
Peak Let-Through Curve
10
5
B
2
10
4
10
4
6
Peak Let-Through Current
Peak Let-Through Current
4
2
FWH-800A
FWH-600A
FWH-500A
FWH-400A
FWH-300A
FWH-250A
10
3
FWH-200B
6
4
FWH-150B
FWH-125B
FWH-100B
FWH-80B
FWH-60B
2
FWH-50B
FWH-40B
FWH-35B
10
2
10
3
A
10
2
2
4
6
10
3
2
4
6
10
4
2
4
6
10
5
2
10
2
10
2
10
3
10
4
Prospective Short-Circuit Current Symmetrical RMS
10
5
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785304
Data Sheet: 360
98
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
COOPER [ COOPER BUSSMANN, INC. ]
