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 6 x 32mm
FWH-.500A6F (
1
⁄
4
” x 1
1
⁄
4
”)
FWH-001A6F
FWH-002A6F
FWH-3.15A6F
FWH-005A6F
FWH-6.30A6F
FWH-007A6F
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
—
—
*300% minimum opening current at rated voltage.
**200% minimum opening current at rated voltage.
• Consult Cooper Bussmann for dc ratings.
• See accessories on page 211.
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")
Did You Know?
Application Engineering Services
Application Engineering assistance is available to all
customers. The Application Engineering team is
staffed by degreed electrical engineers and available
by phone with technical and application support
Monday – Friday, 8:00 a.m. – 5:00 p.m. Central
Time. Application Engineering can be reached via
phone, fax or email:
• Phone: 636-527-1270
• E-mail: fusetech@cooperbussmann.com
196
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
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
10
4
FWH-002A6F
FWH-3.15A6F
FWH-005A6F
FWH-6.30A6F
FWH-007A6F
10
3
6
4
Virtual Pre-Arcing Time In Seconds
2
10
1
6
4
2
10
0
10
2
FWH-12.5A6F
FWH-016A6F
FWH-020A6F
FWH-025A6F
High Speed
Fuses
Virtual Pre-Arcing Time In Seconds
.8
10
0
2
4
6
8
10
1
2
4
6
8
10
2
2
Prospective Current In Amperes RMS
6
4
2
10
–1
10
1
6 FWH-.250A6F
4 FWH-.500A6F
FWH-001A6F
2
10
–2
4x10
–3
.2
.4
.6
10
0
10
–1
10
–2
10
–3 0
10
10
1
10
2
10
3
10
4
Data Sheet: 35785256
Data Sheet: 50955
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
197
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