Bussmann FWA Data Sheet

Form No.

Page 1 of 1

BIF Doc #720003

Bussmann

®

Ferrule

FWA 150V 5-60A

®

Dimensions

1501027022

1.5

1.0

0.5

0.3

0.2

0.15

Eg

K

1)

2)

U

L

E

g

200

100

100 15050

300

Kp

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

A

B

C

Electrical Characteristics Ordering Information Dimensions Curves

Rated

I

2

t (A2S)

Carton

Current Clearing Watts Part Carton Weight Figure

Size RMS-Amps Pre-arc at 150V Loss Number Qty. (kg) Number BIF #

5 1.6 8 1 FWA-5A10F

10 3.6 16 2.7 FWA-10A10F

10 ≈ 38mm 15 14 55 3.3 FWA-15A10F

10 0.100 Fig. 1 35785317

(⁄‹Ω£™∑) 20 33 130 3.8 FWA-20A10F

25 58 220 4.9 FWA-25A10F
30 100 400 4.9 FWA-30A10F
35 75 800 4.5 FWA-35A21F
40 100 1000 5.1 FWA-40A21F

21 ≈ 51mm

45 130 1300 6 FWA-45A21F 10 0.600 Fig. 1 35785305

(⁄‹Ω¡§∑)

50 170 1600 7.3 FWA-50A21F
60 250 2400 8.0 FWA-60A21F

n Interrupting rating 100kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
n 150 Vdc U.L. Recognition.
n Watts loss provided at rated current.

Fig. 1: 5-60 Amp Range

Metric Inches

Part Number A B C A B C

FWA 5A10F-30A10F 38.1 9.5 10.3 1.5 0.375 0.406
FWA 35A21F-60A21F 50.8 15.9 20.6 2.0 0.625 0.811

Dimension in mm.
1mm = 0.0394∑ 1∑ = 25.4mm

1) 5-30 Amp Range

2) 35-60 Amp Range

Total Clearing I2t

The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt­ages, the clearing I

2

t is found by multi­plying by correction factor, K, given as
a function of applied working voltage,
E

g

, (RMS).

Arc Voltage

This curve gives the peak arc voltage,
U

L

, which may appear across the fuse
during its operation as a function of the
applied working voltage, E

g

, (RMS) at a

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
rated current. The correction factor, K

p

,
is given as a function of the RMS load
current, I

b

, in % of the rated current .

Electrical Characteristics

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.

7-18-01

SB01191