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Cooper Electronic
Cooper Electronic


40ET

British Style BS 88 / 690V / 6-700A



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40ET pdf
British Style BS 88
690V 6-700A
Bussmann®
®
Type
Rated
Current
RMS-Amps
Electrical Characteristics
I2t (A2S)
Pre-arc
Clearing
at 415V
Clearing
at 660V
Watts
Loss
Ordering Information
Part
Number
Carton
Qty.
Carton
Weight
(kg)
Dimensions
Figure
Number
6
1.8 8.5
12 2
6CT
10
7 30
48 3
10CT
CT
12
10 40
65 3
12CT
20
0.160
Fig. 1
16 16 66 110 7 16CT
20
32 150 220 7
20CT
25
25 150 250 7
25ET
32
32 190
350 11
32ET
35
52 310
500 11
35ET
ET
40
45
103 600 900 9
103 680 1100 11
40ET
45ET
10
0.420
Fig. 2
56
135 950 1500 14
56ET
63
171 1200
2000
16
63ET
80
360 2500
4000
18
80ET
35
33 130 200 9
35FE
40
52 180 300 9
40FE
45
76 270
450 11
45FE
50
103 380
600 11
50FE
FE
63
135 480
750 12
63FE
10
0.420
Fig. 2
71
210 600
950 17
71FE
80
250 900 1500 20
80FE
90
360 1300
2100
20
90FE
100
470 1800
2800
23
100FE
90
490 3000
4500
19
90EET
EET
110
600 4000
6500
27
110EET
140
1050
7000
12000
35
140EET
5
0.450
Fig. 3
160
1500
10000
17000
39
160EET
100
400 1600
2400
24
100FEE
120
540 1900
3100
32
120FEE
FEE
140
850 2500
3800
36
140FEE
160
1000
3700
5700
46
160FEE
5
0.450
Fig. 3
180
1400
5300
8400
46
180FEE
200
1900
7100
11400
52
200FEE
180
1400
7500
13500
40
180FM
200
2600
10500
18500
40
200FM
225
3700
14500
26500
44
225FM
FM
250
5200
20500
37500
48
250FM
1
0.240
Fig. 4
280
7000
30500
55000
48
280FM
315
10000
40000
77000
55
315FM
350
15000
60000
105000
55
350FM
FMM
400
10000
40000
72500
85
450
15000
60000
105000
90
500
20000
82000
150000
100
550
30000 120000
215000
100
630
45000 180000
310000
100
700
60000 245000
420000
120
400FMM
450FMM
500FMM
550FMM
630FMM
700FMM
1
0.450
Fig. 5
160
2400
15000
25000
26
160MT
180
3800
25000
38000
26
180MT
200
6000
40000
58000
27
200MT
MT†
250
11500
80000
110000
32
250MT
280
16500 100000
150000
35
280MT
315
19000 125000
180000
42
315MT
355
22000 160000
200000
51
355MT
1
0.260
Fig. 4
180
1650
12000
18000
42
200
2200
16000
23000
42
225
3700
26000
40000
42
280
6600
47000
70000
47
315
8600
62000
91000
51
MMT†
355
400
13500
21000
97000
150000
140000
220000
54
60
450
30000 220000
320000
57
500
42000 300000
450000
64
560
60000 430000
640000
64
630
68500 500000
720000
86
710
78000 600000
850000
105
180MMT
200MMT
225MMT
280MMT
315MMT
355MMT
400MMT
450MMT
500MMT
560MMT
630MMT
710MMT
1
.0470
Fig. 5
Interrupting rating 200kA RMS Symmetrical. 500 Vdc rating
1 kg = 2.2 lbs
Watts loss provided at rated current.
Note: FC, 8ET, 12ET, 15ET, 20ET, 65EET and 75EET are available for replacement purposes on existing equipment.
†350 Vdc (IEC) rating. Consult Bussmann for U.L. Recognition status.
1 lb = 0.45 kg
1-17-01
SB00233
Form No.
Page 1 of 2
BIF Doc #720024



No Preview Available !

40ET pdf
British Style BS 88
690V 6-700A
Bussmann®
®
Electrical Characteristics
Total Clearing I2t
The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I2t 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%.
1.6
K
1.4
1.2
1.0
0.8
0.6
0.4
1)
0.2
2)
Eg
200 300 400 500 600 660
1) CT, ET, EET, FE, FEE, MT, MMT
2) FM, FMM
Dimensions
Fig. 1: CT
4
5.5
UL
1500
1000
1)
2)
500
Eg
200 400 600 660
1) CT
2) ET, FE, EET, FEE, FM, FMM
Fig. 2: ET, FE
7.1
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 .
1.0 Kp
0.8
0.6
0.5
0.4
0.3
0.2
0.1 Ib
30 40 50 60 70 80 90 100%
Fig. 3: EET, FEE
8.7
54.8 64.3 74.6
48 63.5 77
46 70 94
6.4
8.7
8.7 Fig. 4: FM, MT
25.4
11.9
9.7
12.7 31.8
17.1
Fig. 5: FMM, MMT
19.1 25.4
37
19
50 A 113
13.5
“A”
Type Dimension
50 A 113
FM
80-85
FMM
80-85
MT 85
14
MMT
85
10.3
10.3
41
83
Dimensions in mm.
1mm = 0.0394∑ 1∑ = 25.4mm
38.1 38
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.
1-17-01
SB00233
Form No.
Page 2 of 2
BIF Doc #720024



Part Number 40ET
Description British Style BS 88 / 690V / 6-700A
Maker Cooper Electronic - Cooper Electronic
Total Page 2 Pages
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