High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp

91

Dimensions (in)

Catalog Number

Fig. BCDThread Depth

FWA-1000AH-2000AH

1

2.0

1.0

—

FWA-2500AH-3000AH

1

3.0

1.5

—

FWA-4000AH

2

3.5

1.5

1.5

1mm = 0.0394∑ / 1∑ = 25.4mm

Fig. 1: 1000-3000A

Fig. 2: 4000A

1.875

B

C

1.875

C

B

D

Arc Voltage

This curve gives the peak

arc voltage, UL, which

may appear across the

fuse during its operation

as a function of the

applied working voltage,

Eg, (rms) at a power fac-

tor of 15%.

Power Losses

Watts loss at rated current

is given in the electrical

characteristics. The curve

allows the calculation of

the power losses at load

currents lower than the

rated current. The correc-

tion factor, Kp, is given as

a function of the RMS load

current, Ib, in % of the

rated current.

Catalog Numbers

Electrical Characteristics

I

Catalog

Rated Current

Clearing

Watts

Numbers

RMS-Amps

Pre-arc

at 130V

Loss

FWA-1000AH

1000

170000

460000

60

FWA-1200AH

1200

270000

730000

70

FWA-1500AH

1500

520000

1400000

78

FWA-2000AH

2000

860000

2400000

108

FWA-2500AH

2500

1500000

4100000

130

FWA-3000AH

3000

2100000

5700000

150

FWA-4000AH

4000

3400000

9200000

257

• Watts loss provided at rated current.

• See accessories on page 106.

Features and Benefits

• Excellent dc performance

• Low watts loss

• Superior cycling capability

Typical Applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

North American — FWA 130V: 1000-4000A

FWA

Specifications

Description:

North American

style flush-end high speed fuses.

Dimensions:

See Dimensions

illustrations.

Ratings:

Volts: — 130Vac

Amps: — 1000-4000A

IR: — 200kA RMS Sym.

— 50kA @130Vdc

Agency Information:

CE, UL Recognized on 1000-2000A

fuses

Electrical Characteristics

rated voltage and at power

factor of 15% are given in

the electrical characteris-

tics. For other voltages, the

multiplying by correction

factor, K, given as a func-

tion of applied working

voltage, Eg, (rms).

130

104

65

26

1.5

1.0

0.5

0.3

0.2

0.15

K

U

L

E

g

200

100

100

150

50

300

1.0

0.8

0.4

0.5

0.6

0.3

0.2

0.1

30 40 50

60

70

80 90 100%

I

b