Semiconductor fuses
Semiconductor (AC) fuses
Protistor
®
Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
Recognized
650 to 1300VAC / 63 to 2800A.
•
•
•
•
•
•
•
•
Exceptionally low I
2
T, Watt losses.
Non-magnetic construction, highly reliable low voltage.
Indicator system.
Conformity to UL, CSA investigated, IEC, DIN and VDE standards.
Increased technical performance
Higher ratings.
Reduction in volume and weight.
This fuse preselection table indicates, for each size:
-rated current (or rating) In
- pre-arcing I
2
t (I
2
tp) at 1 ms
- total operating I
2
t (I
2
tt) at 1000 V and 850V(I)f=50Hz,
cos
ϕ
=0.15, and for a total operating time from 8 to 10 ms
- dissipated power Pn at
the rated current In, and
at 0.8 In, in steady state
- breaking capacity at various voltages, checked by tests
made in accordance with IEC and American standards.
Estimated breaking
capacity: 300 kA
PSC 650 to 1300VAC US and European standard
Size
Nominal Voltage
UN (VAC)
IEC
UL
50
63
80
100
125
160
200
250
280
315
350
400
450
500
550
630
160
200
250
280
315
350
400
450
500
500
550
630
630
700
800
900
0,116
0,210
0,470
0,830
1,30
2,55
4,7
9,6
14
20
28
39
62
84
128
176
2,6
4,7
8,9
12
16
22
38
47
68
68
84
125
125
180
290
446
0,7
1,2
2,7
4,8
7,5
15
27
55
82
115
158
224
356
483
576(*)
730(*)
15
27
51
68
92
127
220
270
390
390
485
725
725
1040
1540(*)
2010(*)
Ampere
Rating (A)
Pre-arcing
I
2
t @ 1ms
(kA2s)
Total I
2
t @
1000V
(*) @ Un
(kA2s)
Tested Breaking capacity
Power (W)
End contacts
16
26
27
30
38
45
54
58
61
66
68
81
82
83
83
91
46
54
61
68
73
76
76
87
90
X
98
105
X
105
116
120
Blades
16
26
27
30
38
45
56
61
64
72
75
90
82
83
83
91
46
54
61
70
76
80
80
95
X
100
112
X
120
105
116
120
IEC
USA
1250
1300
100kA @ 1250V 100kA @ 1300V
70
1200
1100
1000
800
750
1300
1200
1100
900
800
100kA @ 1200V 100kA @ 1300V
150kA @ 1100V 150kA @ 1200V
120kA @ 1000V 120kA @ 1100V
100kA @ 800V 100kA @ 900V
100kA @ 750V 100kA @ 800V
100kA @ 1250V 100kA @ 1300V
1250
1300
71
1100
1000
900
800
1300 (TTI)
1200
1100
950
850
150kA @ 1300V
150kA @ 1100V 150kA @ 1200V
150kA @ 1000V 150kA @ 1100V
100kA @ 900V 100kA @ 950V
100kA @ 800V 100kA @ 850V
(
1
) at 850 V
(
2
) does not exist with blades
126
12/04
Semiconductor (AC) fuses
Semiconductor fuses
Protistor
®
Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
PSC 650 to 1300VAC US and European standard
Size
Nominal Voltage
UN (VAC)
IEC
UL
280
315
350
400
450
500
550
630
630
700
800
700
800
900
1000
315
350
375
400
450
500
550
630
700
800
700
900
800
900
1000
1100
1100
1000
1100
1250
1400
1400
1500
1600
1800
630
700
800
900
1000
1100
1250
1400
1600
1800
2000
2200
2500
800
900
1000
1100
1250
1400
1600
1800
2000
2200
2500
2800
3000
3200
3600
10
15
21
32,5
44
57
68
105
105
145
215
145
215
312
439
12
17
19
25
35,5
44
57
84
110
190
110
250
190
250
370
445
445
370
445
585
755
755
1180
1430
2040
60
84
130
176
228
272
426
568
860
1250
1760
2410
3470
100
142
176
228
336
440
760
1000
1480
1780
2340
3000
4980
5720
8160
60
87
120
190
255
330
390
610
610
815
1240
815
1240
1800
2150(*)
68
100
110
145
205
255
330
485
640
1090
640
1090
1090
1440
2130
2555
2430(*)
1920(*)
2280(*)
3080(*)
4100(*)
3700(*)
4750(*)
5740(*)
7150(*)
348
480
760
1020
1320
1560
2440
3260
4895
6350(*)
7570(*)
8350(*)
12000(*)
580
820
1000
1300
1900
2600
4400
5800
8500
9632(*)
12075(*)
15000(*)
15700(*)
19030(*)
25200(*)
Ampere
Rating (A)
Pre-arcing
I
2
t @ 1ms
(kA2s)
Total I
2
t @
1000V
(*) @ Un
(kA2s)
Power (W)
End contacts
72
76
77
80
87
94
110
113
X
122
125
X
X
130
136
84
86
93
99
110
116
125
135
136
X
150
X
X
152
168
168
X
X
186
210
210
200
203
206
160
162
168
183
197
231
237
256
262
275
285
320
340
195
208
231
244
262
283
286
315
319
353
390
440
405
426
430
Tested Breaking capacity
Estimated B.C 300 kA
IEC
USA
Blades
72
76
77
80
89
98
120
X
125
140
146
140
146
152
136
84
86
93
100
112
120
132
X
X
146
X
148
170
168
208
X
174
208
X
X
X
X
X
X
1250
1300
100kA @ 1250V 100kA @ 1300V
72
1100
1200
150kA @ 1100V 150kA à 1200V
150kA @ 1000V 150kA @ 1100V
1000
850
1100
900
100kA @ 850V 100kA @ 900V
1250
1300
100kA @ 1250V 100kA @ 1300V
1200
73
1100
1000
950
900
850
690
600
1300
1200
1100
1000
1000
900
700
650
100kA @ 1200V 100kA @ 1300V
150kA @ 1100V 150kA @ 1200V
150kA @ 1000V 150kA @ 1100V
150kA @ 950V 150kA @ 1000V
150kA @ 900V 150kA @ 1000V
150kA @ 850V 150kA @ 900V
180kA @ 690V 180kA @ 700V
120kA @ 600V 120kA @ 650V
1250
100kA @ 1250V
2 x 72
1100
1000
900
750
650
100kA @ 1100V
100kA @ 1000V
100kA @ 900V
100kA @ 750V
100kA @ 650V
1250
100kA@ 1250V
2 x 73
1100
1000
950
900
850
600
550
100kA @ 1100V
120kA @ 1000V
100kA @ 950V
110kA @ 900V
100kA @ 850V
200kA @ 600V
200kA @ 550V
(
1
) at 850 V
(
2
) does not exist with blades
12/04
SCAC
127
Semiconductor fuses
Semiconductor (AC) fuses
Protistor
®
Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
IEC Terminals - French 70 - 73 Blades
Size
12,5
12,5
12,5
12,5
12,5
12,5
12,5
12
12
11
12,5
12,5
12,5
12,5
12,5
12,5
12,5
12,5
11
11
10
12,5
12,5
12,5
12,5
12,5
12,5
12,5
11
10
10
12,5
12,5
12,5
12,5
12,5
12,5
12,5
12
11
10
9
9
Designation
URD 70
URD 70
URD 70
URD 70
URD 70
URD 70
URD 70
URD 70
URD 70
URD 70
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 71
URD 72
URD 72
URD 72
URD 72
URD 72
URD 72
URD 72
URD 72
URD 72
URD 72
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
URD 73
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Reference Weight
Pack. Base
Number
(g)
0063 P300600
0080 Q300601
0100 R300602
0125 S300603
0160 T300604
0200 V300605
0250 W300606
0280 L300712
0315 X300607
0350 Y300608
0160 C300750
0200 Z300609
0250 A300610
0280 M300713
0315 B300611
0350 C300612
0400 D300613
0450 E300614
0500 F300615
0550 G300616
0630 H300617
0280 J300618
0315 K300619
0350 L300620
0400 M300621
0450 N300622
0500 P300623
0550 Q300624
0630 R300625
0700 S300626
0800 T300627
0315 V300628
0350 W300629
0400 X300630
0450 Y300631
0500 Z300632
0550 A300633
0630 B300634
0700 C300635
0800 D300636
0900 E300637
1000 F300638
1100 G300639
I/I
N
*
Catalog Number
PC70UD13C63EF
PC70UD13C80EF
PC70UD13C100EF
PC70UD13C125EF
PC70UD13C160EF
PC70UD13C200EF
PC70UD13C250EF
PC70UD12C280EF
PC70UD12C315EF
PC70UD11C350EF
PC71UD13C160EF
PC71UD13C200EF
PC71UD13C250EF
PC71UD13C280EF
PC71UD13C315EF
PC71UD13C350EF
PC71UD13C400EF
PC71UD13C450EF
PC71UD11C500EF
PC71UD11C550EF
PC71UD10C630EF
PC72UD13C280EF
PC72UD13C315EF
PC72UD13C350EF
PC72UD13C400EF
PC72UD13C450EF
PC72UD13C500EF
PC72UD13C550EF
PC72UD11C630EF
PC72UD10C700EF
PC72UD10C800EF
PC73UD13C315EF
PC73UD13C350EF
PC73UD13C400EF
PC73UD13C450EF
PC73UD13C500EF
PC73UD13C550EF
PC73UD13C630EF
PC73UD12C700EF
PC73UD11C800EF
PC73UD10C900EF
PC73UD90V10CEF
PC73UD90V11CEF
70
380
3
71
570
3
72
800
3
73
1150
1
1
1
1
0,95
SP 70 0,90
0,85
0,80
0,80
0,75
0,75
1
1
1
0,95
0,95
SE 71 0,90
0,90
0,85
0,85
0,80
0,80
1
1
1
1
SE 72 0,95
0,90
0,85
0,85
0,80
0,80
1
1
1
1
1
SF50-73 0,95
0,95
0,90
0,90
0,85
0,85
0,80
Fuse holders and microswitches supplied separately
Pull out grip PM7 (V097676)
in size 70-71-72
* I/I
N
: Ratio “maximum
continuous permissible RMS
current I
N
” for a fuse fitted into
the bases.
Connections defined as per IEC
60269-1 and for a calm
ambience of 30°C.
H
18
25
32
40
J
9
10,5
13
13
k
11
16
21,2
19,5
e
6
6
6
6
A
70
71
72
73
40
51
60
74,5
B
62
69
78
92,5
C
96
103
112
127
D
67
68
68
68
E
±1,3
100
110
114,4
114,4
L
±1,3
123,4
133,4
149,4
149,4
F
38
39
43
57
Note:
dimensions in mm
Fuse holders Ref. N°
SP 70
SE 51-71
SE 52-72
SF 53-73
F096099
V098711
W098712
C209187
Cat. N°
SP70
SE71
SE72
SF50-73
a
148
148
150
160
b
42
42
54
60
c
d
e
26
32
42
40
f
168
182
204
210
g
88
85
80
80
h
10
8,5
10
10
l
188
214
240
250
m
60
60
45
40
n
28
28
35
35
r
s
Weight (g)
400
470
940
2000
92 47,5
103 47
114 49
142 55
8,5 5,5
10,5 5,5
12,5 8,5
18
9
SCAC
132
12/04
Semiconductor fuses
Semiconductor (AC) fuses
Protistor
®
Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
Multiplier coefficient
K
1,4
1,2
1
0,8
0,6
0,4
0,2
0
0
*
Left: Mean curve indicating variation of total I
2
t (I
2
t t)
and total operating time Tt in accordance with
working voltage U.
Example:
Fuse 350 A in size 70.
Ip = 10 000 A U = 1100 V
At 1000 V
I
2
t t = 115 000 A
2
s Tt = 7 ms
At 1100 V
I
2
t t = 115 000 x 1.13 = 130 000 A
2
s
Tt = 7 x 1.13 = 7.9 ms
* curve for fuses with I
2
t published at 850VAC
200
400
600
800
1000 1200
U (V)
Dissipated power
P/Pn
Arc voltage
I/In
Above left: Curve enabling calculation of
dissipated power P by a fuse rated I
N
, as a
function of the RMS current I, in multiples
of I
N
, in steady state.
Above right: Curve indicating peak arc
voltage Um which may appear across
fuse terminals as a function of working
voltage U at cos
ϕ
= 0.15
SCAC
134
12/04
Semiconductor (AC) fuses
Semiconductor fuses
Time-current characteristics
Protistor
®
Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
Size 70
Cut-off characteristics
Curves indicating for each rated
current the peak value Ic that the current may
reach as a function of the prospective fault
current Ip.
Time-current characteristics
Curves indicating pre-arcing time for each rated cur-
rent as a function of RMS value of pre-arcing current I.
- Tolerances on this current ± 8 %.
- Beyond 30 sec, small overloads must be eliminated
by another device.
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its hor-
izontal line is represented. Its oblique line must be
plotted according to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Size
70
Maximum values of total operating
I
2
t and total operating times
Horizontal curves indicating the maximum values
of total operating I
2
t (I
2
tt) as function of the
prospective current Ip at 1000V or 850 V(*),
cos
ϕ
= 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets
.
12/04
SCAC
135
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