Bussmann
Square Body US Style
R
690V/700V (IEC) 40-2000A
Electrical Characteristics Ordering Information Curves
-FKE/- -FKE/115
2 2
I t (A S)
Rated -FU/- Type K -FU/115 Type K Carton
Current Clearing Watts Without Indicator Without Indicator Carton Weight
Size RMS-Amps Pre-arc at 660V Loss Indicator for Micro Indicator for Micro Qty. (kg) BIF #
40 40 270 9 170M3608 170M3658 170M3708 170M3758
50 77 515 11 170M3609 170M3659 170M3709 170M3759
63 115 770 14 170M3610 170M3660 170M3710 170M3760
80 185 1250 18 170M3611 170M3661 170M3711 170M3761
100 360 2450 21 170M3612 170M3662 170M3712 170M3762
125 550 3700 26 170M3613 170M3663 170M3713 170M3763
160 1100 7500 30 170M3614 170M3664 170M3714 170M3764
200 2200 15000 35 170M3615 170M3665 170M3715 170M3765
1 0.340 17056314
1* 250 4200 28500 40 170M3616 170M3666 170M3716 170M3766
315 7000 46500 50 170M3617 170M3667 170M3717 170M3767
350 10000 68500 55 170M3618 170M3668 170M3718 170M3768
400 15000 105000 60 170M3619 170M3669 170M3719 170M3769
450 21000 140000 65 170M3620 170M3670 170M3720 170M3770
500 27000 180000 70 170M3621 170M3671 170M3721 170M3771
550 34000 230000 75 170M3622 170M3672 170M3722 170M3772
630 48500 325000 80 170M3623 170M3673 170M3723 170M3773
200 1650 11500 45 170M4608 170M4658 170M4708 170M4758
250 3100 21000 55 170M4609 170M4659 170M4709 170M4759
315 6200 42000 58 170M4610 170M4660 170M4710 170M4760
350 8500 59000 60 170M4611 170M4661 170M4711 170M4761
400 13500 91500 65 170M4612 170M4662 170M4712 170M4762
450 17000 120000 70 170M4613 170M4663 170M4713 170M4763
1 1 0.500 17056316
500 25000 170000 72 170M4614 170M4664 170M4714 170M4764
550 34000 230000 75 170M4615 170M4665 170M4715 170M4765
630 52000 350000 80 170M4616 170M4666 170M4716 170M4766
700 69500 465000 85 170M4617 170M4667 170M4717 170M4767
800 105000 725000 95 170M4618 170M4668 170M4718 170M4768
900 155000 850000 100 170M4619 170M4669 170M4719 170M4769
400 11000 74000 65 170M5608 170M5658 170M5708 170M5758
450 15500 105000 70 170M5609 170M5659 170M5709 170M5759
500 21500 145000 75 170M5610 170M5660 170M5710 170M5760
550 28000 190000 80 170M5611 170M5661 170M5711 170M5761
630 41000 275000 90 170M5612 170M5662 170M5712 170M5762
2 700 60500 405000 95 170M5613 170M5663 170M5713 170M5763 1 0.630 17056318
800 86000 575000 105 170M5614 170M5664 170M5714 170M5764
900 125000 840000 110 170M5615 170M5665 170M5715 170M5765
1000 180000 1250000 115 170M5616 170M5666 170M5716 170M5766
1100 245000 1600000 120 170M5617 170M5667 170M5717 170M5767
1250 365000 2400000 130 170M5618 170M5668 170M5718 170M5768
500 14000 95000 95 170M6608 170M6658 170M6708 170M6758
550 19500 135000 100 170M6609 170M6659 170M6709 170M6759
630 31000 210000 105 170M6610 170M6660 170M6710 170M6760
700 44500 300000 110 170M6611 170M6661 170M6711 170M6761
800 69500 465000 115 170M6612 170M6662 170M6712 170M6762
900 100000 670000 120 170M6613 170M6663 170M6713 170M6763
3 1000 140000 945000 125 170M6614 170M6664 170M6714 170M6764
1 0.950 17056320
1100 190000 1300000 130 170M6615 170M6665 170M6715 170M6765
1250 290000 1950000 140 170M6616 170M6666 170M6716 170M6766
1400 370000 2450000 155 170M6617 170M6667 170M6717 170M6767
1500 460000 3100000 160 170M6618 170M6668 170M6718 170M6768
1600 580000 3900000 160 170M6619 170M6669 170M6719 170M6769
1800 880000 5250000 165 170M6620 170M6670 170M6720 170M6770
2000 1150000 6350000 175 170M6621 170M6671 170M6721 170M6771
n Interrupting rating 200kA (Estimated 300kA) RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
n Watts loss provided at rated current.
n Rated voltage (IEC) 600V 550V (Consult Bussmann for U.L. Recognition/ CSA Component Acceptance status.)
n Microswitch indicator ordered separately.
Form No.
Page 1 of 2
7-11-01 SB01911
BIF Doc #720023
Bussmann
Square Body US Style
R
690V/700V (IEC) 40-2000A
Electrical Characteristics
2
Total Clearing I t Arc Voltage Power Losses
2
The total clearing I t at rated voltage and This curve gives the peak arc voltage, Watts loss at rated current is given in
at power factor of 15% are given in the U , which may appear across the fuse the electrical characteristics. The curve
L
electrical characteristics. For other volt- during its operation as a function of the allows the calculation of the power
2
ages, the clearing I t is found by multi- applied working voltage, E , (RMS) at a losses at load currents lower than the
g
plying by correction factor, K, given as power factor of 15%. rated current. The correction factor, K ,
p
a function of applied working voltage, is given as a function of the RMS load
E , (RMS). current, I , in % of the rated current .
g b
1.5
1.4 1.0
Kp
K
0.8
2) 1) 1.2 U
L
1.0
3
10
0.6
9 0.5
8
0.4
7
0.5
0.3
6
0.4
5
0.3 0.2
4
0.2
E
g
I
b
0.1
3
100 200 300 400 500 600 690
200 300 400 500 600 690 30 40 50 60 70 80 90 100%
1) Rated voltage 600V
2) Rated voltage 550V
Dimensions
US Style: Type -FU/-, -FKE/-, FU/115-, -FKE/115
Size A B B C1 C1 C2 C2 DE H I
1* 50 110 148 85 123 72 110 59 45 20 10
1 50 136 157 104 126 78 100 69 53 25 14
2 50 135 159 105 125 78 99 77 61 25 14
3 51 135 155 106 125 77 97 92 76 36 16
Valid for fuses type -FU/115 & -FKE/115
Dimension in mm.
1mm = 0.0394 1 = 25.4mm
B
6
A
D
C1
E C2
E
I H
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.
Form No.
Page 2 of 2
BIF Doc #720023
7-11-01 SB01911