7-18-01

SB01191

Form No. FWP

Page 1 of 1

BIF Doc #720026

The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled.

This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right,

without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without

notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.

®

Ferrule

FWP 660V/700V (IEC/U.L.)

20-100A

Dimensions

K

1.4

1.2

1.0

0.6

0.8

0.7

0.9

0.5

0.4

0.3

200

300

400

500

600

700

E

g

U

L

1.4

1.2

6

8

7

9

5

4

3

200

300

400

500

600

700

E

g

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

58.0

(2.283")

15.0

(0.591")

22.2

(0.875")

Electrical Characteristics

Ordering Information

Dimensions

Curves

Rated

Carton

Current

Clearing

Watts

Part

Carton

Weight

Figure

Size

RMS-Amps

Pre-arc

at 660V

Loss

Number

Qty.

(kg)

Number

BIF #

20

23

260

4.6

FWP-20A22F

25

37

410

5.6

FWP-25A22F

32

55

605

7.0

FWP-32A22F

22 ≈ 58mm

40

68

750

8.5

FWP-40A22F

10

0.450

Fig. 1

35785291

(‡Ω•∑)

50

155

1600

9.5

FWP-50A22F

63

280

3080

11

FWP-63A22F

80

600

6600

13.5

FWP-80A22F

100

1100

12500

16

FWP-100A22F

Interrupting rating 200kA RMS Symmetrical.

1 kg = 2.2 lbs.

1 lb = 0.45 kg

Watts loss provided at rated current.

(500 Vdc/Interrupting rating 50kA) U.L. Recogition.

Fig. 1: 20-100 Amp Range

Dimension in mm.

1mm = 0.0394∑

1∑ = 25.4mm

The total clearing I

at power factor of 15% are given in the

electrical characteristics. For other volt-

ages, the clearing I

plying by correction factor, K , given as

a function of applied working voltage,

Arc Voltage

This curve gives the peak arc voltage,

during its operation as a function of the

power factor 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

is given as a function of the RMS load

Electrical Characteristics