12-28-98
SB98107
Rev. A
Form No.
Page 2 of 2
BIF Doc #720004
Bussmann
British Style BS 88
240V
6-900A
Total Clearing I2t
The total clearing I
2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I
2t is found by multi-
plying by correction factor, K , given as
a function of applied working voltage,
Eg, (RMS).
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 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, Kp ,
is given as a function of the RMS load
current, Ib , in % of the rated current .
Electrical Characteristics
Dimensions
84
59
31
83
38
25.4
13.5
10.3
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
100
50
150
200
250
1)
2)
E
g
K
750
500
250
100
200
300
1)
2)
E
g
U
L
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
84
59
31
41
38.1
25.4
10.3
13.5
Fig. 3: LMT
Fig. 4: LMMT
Indicator (Optional)
1mm = 0.0394∑
1∑ = 25.4mm
1) LCT
2) LET, LMT, LMMT
1) LCT
2) LET, LMT, LMMT
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