High Speed Fuses
Square body DIN 43 620 — 1000V (IEC): 20–225A
1000V (IEC) 20–225A
Specifications
Description:
Square body DIN
43 620 blade style high speed
fuses.
Dimensions:
See dimensions
illustration.
Ratings:
Volts: — 1000Vac
Amps: — 20-225A
IR: — 150kA RMS Sym.
Agency Information:
CE, Designed and tested to IEC
60269: Part 4, UL Recognized.
Electrical Characteristics
Total clearing I
2
t
The total clearing I
2
t at rated
voltage and at power factor
of 15% are given in the elec-
trical 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, Eg, (rms).
1,5
1,0
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 correc-
tion factor, Kp, is given as
a function of the RMS load
current, Ib, in % of the
rated current.
3
U
L
2,5
2
1,8
1,6
1,4
1,2
10
3
8
7
6
5
4
3
200
1,0
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,15
0,1
30
400
600
800
1000
Eg
K
p
High Speed
Fuses
K
*
I
b
40
50
60
70
80
90 100%
0,5
0,4
0,3
0,2
Eg
200
400
600
800
1000
Features and Benefits
• Excellent dc performance
• Low arc voltage and low energy let-through (I
2
t)
• Low watts loss
• Superior cycling capability
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
*Rated voltage 900V
Dimensions (mm)
Type T
Size
DIN 00
A
49
B
78.5
Max D
60
Max E
30
F
35
G
6
Min H
15
1mm = 0.0394” / 1” = 25.4mm
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
145
High Speed Fuses
Square body DIN 43 620 — 1000V (IEC): 20–225A
Catalog Numbers
Catalog Numbers
Type T
Indicator
for Micro
170M2673
170M2674
170M2675
170M2676
170M2677
170M2678
170M2679
170M2680
170M2681
170M2682
170M2683
170M2684
170M2685
Electrical Characteristics
Rated
I
2
t (A
2
Sec)
Current
Clearing
RMS
at Rated
Amps
Pre-arc
Voltage
20
15
110
25
28.5
210
32
53
390
35
69
500
40
105
760
50
215
1550
63
380
2750
80
815
5900
100
1550
11500
125
3000
22000
160
6250
45000
200
12000
86500
225
18000
115000
Size 00 — 20-225A: 1000V
Time-Current Curve
Watts
Loss
8.5
9.5
11
12
13
14
16
18
21
23
26
31
33
Size
00
Virtual Pre-arcing Time In Seconds
Rated
Voltage
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
900
900
10
4
10
3
10
2
10
• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on page 179-180.
Rated Current
The rated current of this fuse range is given with open fuse
bases connected to copper conductors according to IEC
60269 Part 1, table 10. When used in enclosed fuse
bases/disconnects, derating factors have to be observed.
Please contact Cooper Bussmann for application assistance.
1
s
63A
40A
32A
100A
160A
20A
225A
*
10
-1
80A
35A
25A
50A
200A
*
125A
10
-2
10
-3
Did You Know?
Cooper Bussmann Helps Ford Motor
Company Implement Electrical Safety
Program
All of the Ford Motor Company facilities in the U.S.,
Canada and Mexico recently completed a safety
upgrade to their electrical systems using Cooper
Bussmann current limiting fuses. The automaker
initiated a proactive program to enhance worker
safety when working on electrical equipment.
The program not only included the fuse change out,
but also a short circuit current study, arc flash
hazard analysis, affixing safety labels to equipment,
and providing safety training and personal protective
equipment (PPE) to workers, as needed. By using
Cooper Bussmann
®
current-limiting fuses in potential
arc-flash situations the amount of electrical energy
released is considerably less, thereby helping to
reduce the risk of potential injury.
10
-4
10
10
2
10
3
10
4
Prospective Current In Ampere RMS
Peak Let-Through Curve
10
4
225A
200A 160A
125A 100A
80A 63A
50A 40A
35A 32A
25A 20A
Peak Let-Through Current In Amperes
10
3
10
2
2x10
10
10
2
10
3
10
4
Amp
10
5
Prospective Short-Circuit Current symmetrical RMS
* 200-225A fuses are derated to 900V
Data Sheet: 17058506
146
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
