High Speed Fuses
Ferrule — FWH 500V: 0.25-30A
FWH (6 x 32mm)
Specifications
Description:
Ferrule style high
speed fuses.
Dimensions:
See dimensions
illustrations.
Ratings:
Volts: — 500Vac
Amps: — 0.25-30A
IR: — 50kA at ≥ 20% pf (0.25-20A)
— 20kA at ≥ 20% pf (25-30A)
Agency Information:
CE, UL Recognition 0.25-30A, CSA
Component Acceptance: 0.25-7A
Opening Times
Amp Ratings
0.25-7
10-30
150%
> 30 min
< 30 min
200%
< 30 min
< 30 min
300%
≤ 10 sec
≤ 10 sec
Catalog Numbers
Catalog
Numbers
Size
FWH-.250A6F
FWH-.500A6F
FWH-001A6F
FWH-002A6F
FWH-3.15A6F
FWH-005A6F
FWH-6.30A6F 6 x 32mm
FWH-007A6F (
1
⁄
4
” x 1
1
⁄
4
”)
FWH-010A6F
FWH-12.5A6F
FWH-015A6F
FWH-016A6F
FWH-020A6F
FWH-025A6F
FWH-030A6F
Rated
Current
RMS-Amps
0.25*
0.5*
1*
2*
3.15*
5*
6.3*
7*
10**
12.5**
15**
16**
20**
25**
30**
Electrical Characteristics
I
2
t (A
2
Sec)
Clearing
Pre-arc
at 500V
0.01
0.05
0.05
0.25
0.4
2
1.3
3.5
3.1
7.7
15
40
36
90
50
125
9.9
139
20
60
44
146
48
177
75
259
126
345
145
430
Watts
Loss
2.7
1.2
1.7
3.2
2.9
2.1
2.3
2.5
2.86
3.53
3.08
4.48
4.26
—
—
High Speed
Fuses
*300% minimum opening current at rated voltage.
**200% minimum opening current at rated voltage.
• Consult Cooper Bussmann for DC ratings.
• See accessories on page 216.
Dimensions - mm (inches)
31.8
(1.25")
6.4
(0.25")
Features and Benefits
• Excellent cycling capability and DC performance
• Low arc voltage and low energy let-through (I
2
t)
• Low watts loss in a compact size
• Used with finger-safe holders/blocks
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
3.2
(0.125")
Data Sheet: 720038
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
201
High Speed Fuses
Ferrule — FWH 500V: 0.25-30A
FWH 0.25-7A: 500V (6 x 32mm)
Time-Current Curve
10
4
6
4
2
10
3
6
4
2
10
2
FWH 10-30A: 500V (6 x 32mm)
Time-Current Curve
FWH-002A6F
FWH-3.15A6F
FWH-005A6F
FWH-6.30A6F
FWH-007A6F
6
4
Virtual Pre-Arcing Time In Seconds
2
10
1
6
4
2
10
0
6
4
2
10
–1
6 FWH-.250A6F
4 FWH-.500A6F
FWH-001A6F
2
10
–2
4x10
–3
.2
.4
.6
.8
10
0
2
4
6
8
10
1
2
4
6
8
10
2
2
Prospective Current In Amps RMS
Data Sheet: 35785256
Data Sheet: 50955
202
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
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