Form No.

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BIF Doc #720006

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 con-

tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible

applications.

7-18-01

SB01191

Ferrule

FWX 250V (U.L.)

1-30A

®

Dimensions

1.5

1.0

0.5

0.3

0.2

0.15

75

125

300

200

250

K

1.4

1.2

800

600

500

400

300

200

50

100

150

200

250V

RMS

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

50.8

(2.000")

15.5

(0.610")

14.3

(0.563")

Electrical Characteristics

Ordering Information

Dimensions

Curves

Rated

Carton

Current

Clearing

Watts

Part

Carton

Weight

Figure

Size

RMS-Amps

Pre-arc

at 250V

Loss

Number

Qty.

(kg)

Number

BIF #

1

—

—

—

FWX-1A14F

2

—

—

—

FWX-2A14F

3

—

—

—

FWX-3A14F

4

—

—

—

FWX-4A14F

14 ≈ 51mm

5

1.6

13

1.3

FWX-5A14F

10

0.225

Fig. 1

(·Ω¡§∑)

10

3.6

24

3.4

FWX-10A14F

35785302

15

14

83

3.8

FWX-15A14F

20

33

200

4.6

FWX-20A14F

25

58

300

5.3

FWX-25A14F

30

100

500

5.9

FWX-30A14F

50

200

1800

5.7

FWX-50A14F

Interrupting rating 200kA RMS Symmetrical.

1 kg = 2.2 lbs.

1 lb = 0.45 kg

Watts loss provided at rated current.

(250 Vdc/Interrupting rating 50kA) U.L. Recognition on 5 through 30 amperes only. Consult Bussmann for additional ratings.

See accessories on page 90.

Fig. 1: 1-30 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