Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
12/04
126
650 to 1300VAC / 63 to 2800A.
• Exceptionally low I2T, 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.
Recognized
PSC 650 to 1300VAC US and European standard
Total I2t @
Nominal Voltage Pre-arcing 1000V Tested Breaking capacity
Size UN (VAC) Ampere I2t @ 1ms (*) @ Un Power (W)
Rating (A) (kA2s) (kA2s)
IEC UL
End contacts
Blades IEC USA
Estimated breaking
capacity: 300 kA
(1) at 850 V
(2) does not exist with blades
• This fuse preselection table indicates, for each size:
-rated current (or rating) In
- pre-arcing I2t (I2tp) at 1 ms
- total operating I2t (I2tt) 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.
50 0,116 0,7 16 16
63 0,210 1,2 26 26
80 0,470 2,7 27 27
100 0,830 4,8 30 30
1250 1300 125 1,30 7,5 38 38
100kA @ 1250V 100kA @ 1300V
160 2,55 15 45 45
200 4,7 27 54 56
250 9,6 55 58 61
70 1200 1300 280 14 82 61 64
100kA @ 1200V 100kA @ 1300V
315 20 115 66 72
350 28 158 68 75
1100 1200 400 39 224 81 90
150kA @ 1100V 150kA @ 1200V
450 62 356 82 82
1000 1100 500 84 483 83 83
120kA @ 1000V 120kA @ 1100V
800 900 550 128 576(*) 83 83
100kA @ 800V 100kA @ 900V
750 800 630 176 730(*) 91 91
100kA @ 750V 100kA @ 800V
160 2,6 15 46 46
200 4,7 27 54 54
250 8,9 51 61 61
280 12 68 68 70
100kA @ 1250V 100kA @ 1300V
1250 1300 315 16 92 73 76
350 22 127 76 80
400 38 220 76 80
450 47 270 87 95
71 1300 (TTI) 500 68 390 90 X 150kA @ 1300V
1100 1200 500 68 390 X 100
150kA @ 1100V
150kA @ 1200V
550 84 485 98 112
630 125 725 105 X
1000 1100 630 125 725 X 120 150kA @ 1000V 150kA @ 1100V
700 180 1040 105 105
900 950 800 290 1540(*) 116 116 100kA @ 900V 100kA @ 950V
800 850 900 446 2010(*) 120 120 100kA @ 800V 100kA @ 850V
SCAC127
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Main characteristics
12/04
PSC 650 to 1300VAC US and European standard
Total I2t @
Nominal Voltage Pre-arcing 1000V Tested Breaking capacity
Size UN (VAC) Ampere I2t @ 1ms (*) @ Un Power (W) Estimated B.C 300 kA
Rating (A) (kA2s) (kA2s)
IEC UL
End contacts
Blades IEC USA
(1) at 850 V
(2) does not exist with blades
280 10 60 72 72
315 15 87 76 76
350 21 120 77 77
400 32,5 190 80 80
1250 1300 450 44 255 87 89
100kA @ 1250V 100kA @ 1300V
500 57 330 94 98
550 68 390 110 120
72 630 105 610 113 X
630 105 610 X 125
150kA @ 1100V 150kA à 1200V
1100 1200 700 145 815 122 140
800 215 1240 125 146
700 145 815 X 140
150kA @ 1000V 150kA @ 1100V
1000 1100 800 215 1240 X 146
900 312 1800 130 152
850 900 1000 439 2150(*) 136 136 100kA @ 850V 100kA @ 900V
315 12 68 84 84
350 17 100 86 86
375 19 110
400 25 145 93 93
450 35,5 205 99 100
1250 1300 500 44 255 110 112
100kA @ 1250V 100kA @ 1300V
550 57 330 116 120
630 84 485 125 132
700 110 640 135 X
800 190 1090 136 X
1200 1300 700 110 640 X 146
100kA @ 1200V 100kA @ 1300V
900 250 1090 150 X
73 1100 1200 800 190 1090 X 148
150kA @ 1100V 150kA @ 1200V
900 250 1440 X 170
150kA @ 1000V 150kA @ 1100V
1000 1100 1000 370 2130 152 168
1100 445 2555 168 208
950 1000 1100 445 2430(*) 168 X
150kA @ 950V 150kA @ 1000V
1000 370 1920(*) X 174
900 1000 1100 445 2280(*) X 208
150kA @ 900V 150kA @ 1000V
1250 585 3080(*) 186 X
1400 755 4100(*) 210 X
850 900 1400 755 3700(*) 210 X 150kA @ 850V 150kA @ 900V
690 700 1500 1180 4750(*) 200 X 180kA @ 690V 180kA @ 700V
1600 1430 5740(*) 203 X
600 650 1800 2040 7150(*) 206 X 120kA @ 600V 120kA @ 650V
630 60 348 160
700 84 480 162
1250 800 130 760 168
100kA @ 1250V
900 176 1020 183
1000 228 1320 197
1100 272 1560 231
2 x 72 1100 1250 426 2440 237
100kA @ 1100V
1400 568 3260 256
1000 1600 860 4895 262
100kA @ 1000V
900 1800 1250 6350(*) 275 100kA @ 900V
750 2000 1760 7570(*) 285 100kA @ 750V
650 2200 2410 8350(*) 320 100kA @ 650V
2500 3470 12000(*) 340
800 100 580 195
900 142 820 208
1250 1000 176 1000 231
100kA@ 1250V
1100 228 1300 244
1250 336 1900 262
1400 440 2600 283
2 x 73 1100 1600 760 4400 286
100kA @ 1100V
1800 1000 5800 315
1000 2000 1480 8500 319
120kA @ 1000V
950 2200 1780 9632(*) 353 100kA @ 950V
900 2500 2340 12075(*) 390 110kA @ 900V
850 2800 3000 15000(*) 440 100kA @ 850V
600 3000 4980 15700(*) 405
200kA @ 600V
3200 5720 19030(*) 426
550 3600 8160 25200(*) 430
200kA @ 550V
Semiconductor fuses
Semiconductor (AC) fuses
SCAC130
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
IEC Terminals - French 70 - 73 End contacts
12/04
Size
70
71
72
73
Designation Catalog Number
Reference
Number
Weight
(g)
350
520
800
1250
Packaging
3
3
3
1
PC70UD13C50TF
PC70UD13C63TF
PC70UD13C80TF
PC70UD13C100TF
PC70UD13C125TF
PC70UD13C160TF
PC70UD13C200TF
PC70UD13C250TF
PC70UD12C280TF
PC70UD12C315TF
PC70UD11C350TF
PC70UD11C400TF
PC70UD11C450TF
PC70UD10C500TF
PC70UD80V550TF
PC71UD13C160TF
PC71UD13C200TF
PC71UD13C250TF
PC71UD13C280TF
PC71UD13C315TF
PC71UD13C350TF
PC71UD13C400TF
PC71UD13C450TF
PC71UD11C500TF
PC71UD11C550TF
PC71UD11C630TF
PC71UD10C700TF
PC71UD90V800TF
PC71UD80VC900TF
PC72UD13C250TF
PC72UD13C280TF
PC72UD13C315TF
PC72UD13C350TF
PC72UD13C400TF
PC72UD13C450TF
PC72UD13C500TF
PC72UD13C550TF
PC72UD13C630TF
PC72UD11C700TF
PC72UD11C800TF
PC72UD10C900TF
PC72UD85V1000TF
PC73UD13C315TF
PC73UD13C350TF
PC73UD13C400TF
PC73UD13C450TF
PC73UD13C500TF
PC73UD13C550TF
PC73UD13C630TF
PC73UD13C700TF
PC73UD13C800TF
PC73UD12C900TF
PC73UD10C1000TF
PC73UD95V800TFB
PC73UD90V13CTF
PC73UD85C14CTF
PC73UD69V16CTF
PC73UD60V18CTF
Size A B C D M±N±E±1 dG
±0.1 P±0.1
70 40 46,5 82 26 22 27 74 M8 9 6
1-9/16” 1-27/32” 3-7/32” 1-1/64” 2-29/32” 23/64” 15/64”
71 51 56,5 91 30 19 24 74 M8 9 9
2” 2-7/32” 3-37/64” 1-3/16” 2-29/32” 23/64” 23/64”
72 60 65,5 100 38 ; (42mm **) 19 39 74 M10 15 9
2-3/8” 2-37/64” 3-15/16” 1-1/2” ; (1-21/32” **) 2-29/32” 19/32” 23/64”
73 74,5 79,5 114 46 ; (52mm **) 24 39 74 M12 15 9
2-15/16” 3-1/8” 4-1/2” 1-13/16” ; (2-1/16” **) 2-29/32” 19/32” 23/64”
Note:
Dimensions in mm
Dimensions in inches
P
Microswitches and threaded studs
supplied separately
12,5 URD 70 TT F 0050
12,5 URD 70 TT F 0063
12,5 URD 70 TT F 0080
12,5 URD 70 TT F 0100
12,5 URD 70 TT F 0125
12,5 URD 70 TT F 0160
12,5 URD 70 TT F 0200
12,5 URD 70 TT F 0250
12 URD 70 TT F 0280
12 URD 70 TT F 0315
11 URD 70 TT F 0350
11 URD 70 TT F 0400
11 URD 70 TT F 0450
10 URD 70 TT F 0500
8 URD 70 TT F 0550
12,5 URD 71 TT F 0160
12,5 URD 71 TT F 0200
12,5 URD 71 TT F 0250
12,5 URD 71 TT F 0280
12,5 URD 71 TT F 0315
12,5 URD 71 TT F 0350
12,5 URD 71 TT F 0400
12,5 URD 71 TT F 0450
11 URD 71 TT F 0500
11 URD 71 TT F 0550
11 URD 71 TT F 0630
10 URD 71 TT F 0700
9 URD 71 TT F 0800
8 URD 71 TT F 0900
12,5 URD 72 TT F 0250
12,5 URD 72 TT F 0280
12,5 URD 72 TT F 0315
12,5 URD 72 TT F 0350
12,5 URD 72 TT F 0400
12,5 URD 72 TT F 0450
12,5 URD 72 TT F 0500
12,5 URD 72 TT F 0550
12,5 URD 72 TT F 0630
11 URD 72 TT F 0700
**
11 URD 72 TT F 0800
**
10 URD 72 TT F 0900
**
8,5 URD 72 TT F 1000
**
12,5 URD 73 TT F 0315
12,5 URD 73 TT F 0350
12,5 URD 73 TT F 0400
12,5 URD 73 TT F 0450
12,5 URD 73 TT F 0500
12,5 URD 73 TT F 0550
12,5 URD 73 TT F 0630
12,5 URD 73 TT F 0700
12,5 URD 73 TT F 0800
12 URD 73 TT F 0900
**
10 URD 73 TT F 1000
**
9,5 URD 73 TT F 1100
**
9 URD 73 TT F 1250
**
8,5 URD 73 TT F 1400
**
6,9 URD 73 TT F 1600
**
6 URD 73 TT F 1800
**
C301095
M300483
N300484
P300485
Q300486
R300487
S300488
T300489
N300714
V300490
W300491
E300867
H301284
J301285
K301286
B300749
Z300517
A300518
P300715
B300519
C300520
D300521
E300522
F300523
G300524
H300525
M301288
Z300862
N301289
X301573
Y300493
Z300494
A300495
B300496
C300497
D300498
E300499
F300500
G300501
H300502
G300869
T301294
J300503
K300504
L300505
M300506
N300507
P300508
Q300509
R300510
S300511
T300512
V300513
W300514
T300696
S300718
B301301
C301302
SCAC131
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
IEC Terminals - French 272 - 273 End contacts
12/04
2 x 72 TTF 60 138,5 172 11 91 65,5 100 35 66 39 M 10 4 131 48 72
2 x 73 TTF 74,5 167 200 13 91 79,5 114 50 80 39 M 12 4 131 54 86
Size
73
2 x
72
2 x
73
Designation Reference
Number
Weight
(g) Packaging
ABC DEF G HJ K de LMN
Microswitches and threaded studs
supplied separately
Note:
Dimensions in mm
Catalog Number
12,5 URD 73 PPAF 0315
12,5 URD 73 PPAF 0350
12,5 URD 73 PPAF 0400
12,5 URD 73 PPAF 0450
12,5 URD 73 PPAF 0500
12,5 URD 73 PPAF 0550
12,5 URD 73 PPAF 0630
12,5 URD 73 PPAF 0700
12,5 URD 73 PPAF 0800
12 URD 73 PPAF 0900
10 URD 73 PPAF 1000
9,5 URD 73 PPAF 1100
9 URD 73 PPAF 1250
8,5 URD 73 PPAF 1400
12,5 URD 272 TTF 0630
12,5 URD 272 TTF 0700
12,5 URD 272 TTF 0800
12,5 URD 272 TTF 0900
12,5 URD 272 TTF 1000
12,5 URD 272 TTF 1100
11 URD 272 TTF 1250
11 URD 272 TTF 1400
10 URD 272 TTF 1600
9 URD 272 TTF 1800
7,5 URD 272 TTF 2000
6,5 URD 272 TTF 2200
6,5 URD 272 TTF 2500
12,5 URD 273 TTF 0800
12,5 URD 273 TTF 0900
12,5 URD 273 TTF 1000
12,5 URD 273 TTF 1100
12,5 URD 273 TTF 1250
11 URD 273 TTF 1400
11 URD 273 TTF 1600
11 URD 273 TTF 1800
10 URD 273 TTF 2000
9,5 URD 273 TTF 2200
9,5 URD 273 PLAF 2200
9 URD 273 PLAF 2500
8,5 URD 273 PLAF 2800
6 URD 273 PLAF 3000
6 URD 273 PLAF 3200
5,5 URD 273 PLAF 3600
273 PLAF
73 PPAF
272 &273 TTF
H300640
J300641
K300642
L300643
M300644
N300645
P300646
Q300647
R300648
S300649
T300650
V300651
T300719
V300720
W300721
X300722
Y300723
Z300724
A300725
B300726
M302231
D300728
L302230
E301994
F301995
G301996
H301997
F300730
G300731
H300732
J300733
K300734
K302229
J302228
S302236
P300738
Q300739
M301909
R300740
S300741
K301999
M302001
N302002
1250
1900
2600
3100
1
1
1
1
PC73UD13C315PP4
PC73UD13C350PP4
PC73UD13C405PP4
PC73UD13C450PP4
PC73UD13C500PP4
PC73UD13C550PP4
PC73UD13C630PP4
PC73UD13C700PP4
PC73UD13C800PP4
PC73UD12C900PP4
PC73UD10C10CPP4
PC73UD95V11CPP4
PC73UD90V13CPP4
PC73UD85V14CPP4
PC272UD13C630TF
PC272UD13C700TF
PC272UD13C800TF
PC272UD13C900TF
PC272UD13C10CTF
PC272UD13C11CTF
PC272UD11C13CTF
PC272UD11C14CTF
PC272UD10C16CTF
PC272UD90V18CTF
PC272UD75V20CTF
PC272UD65V22CTF
PC272UD65V25CTF
PC273UD13C800TF
PC273UD13C900TF
PC273UD13C10CTF
PC273UD13C11CTF
PC273UD13C13CTF
PC273UD11C14CTF
PC273UD11C16CTF
PC273UD11C18CTF
PC273UD10C20CTF
PC273UD95V22CTF
PC76UD95V22CP11
PC76UD90V25CP11
PC76UD85V28CP11
PC76UD60V30CP11
PC76UD60V32CP11
PC76UD55V36CP11
Semiconductor fuses
Semiconductor (AC) fuses
SCAC134
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
1,4
1,2
1
0,8
0,6
0,4
0,2
00 200 400 600 800 1000 1200
Multiplier coefficient
Left: Mean curve indicating variation of total I2t (I2t t)
and total operating time Ttin accordance with
working voltage U.
Example:
Fuse 350 A in size 70.
Ip= 10 000 A U = 1100 V
At 1000 V
I2t t= 115 000 A2s Tt= 7 ms
At 1100 V
I2t t= 115 000 x 1.13 = 130 000 A2s
Tt= 7 x 1.13 = 7.9 ms
* curve for fuses with I2t published at 850VAC
Dissipated power Arc voltage
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
Above left: Curve enabling calculation of
dissipated power P by a fuse rated IN, as a
function of the RMS current I, in multiples
of IN, in steady state.
U (V)
I/In
K
P/Pn
*
SCAC135
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
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.
Time-current characteristics
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
70
Size 70
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
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
horizontal 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.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Semiconductor fuses
Semiconductor (AC) fuses
136
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Size
71
Time-current characteristics
Size 71
Maximum values of total operating
I2t and total operating times
Left: Horizontal curves indicating the maximum
values of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Below, right: Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
SCAC137
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Size
72
Size 72
Time-current characteristics
Above, left: Curves indicating pre-arcing time for
each rated current 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
horizontal line is
represented. Its oblique line must be plotted accord-
ing to sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates
the minimum breaking current Ipm of the fuse.
Time-current characteristics
Semiconductor fuses
Semiconductor (AC) fuses
SCAC138
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
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
horizontal 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.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
73
Size 73
Time-current characteristics
SCAC139
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating
I2t and total operating times
Horizontal curves indicating the maximum values
of total operating I2t (I2tt) as function of the
prospective current Ipat 1000V or 850 V(*),
cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated current
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
horizontal 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.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
2X72
Time-current characteristics
Size 2x72
Semiconductor fuses
Semiconductor (AC) fuses
SCAC140
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Maximum values of total operating I2t
and total operating times
Horizontal curves indicating the maximum values of
total operating I2t (I2tt) as function of the prospective
current Ipat 1000V or 850 V(*), cos ϕ = 0.15.
The oblique lines indicate the corresponding total
operating time Tt, with pre-arcing time in brackets.
Time-current characteristics
Curves indicating pre-arcing time for each rated current
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
horizontal 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.
Curves indicating for each rated
current the peak value Icthat the current may
reach as a function of the prospective fault
current Ip.
Cut-off characteristics
Size
2x73
Time-current characteristics
Size 2x73
63 a 270
80 a 400
100 a 520
125 a 700
160 a 950 a 950
200 a 1300 a 1300
250 a 1800 a 1800
280 b 2200 a 2000 a 1800
315 b 2600 a 2300 a 2200 a 2000
350 c 3000 a 2700 a 2600 a 2400
400 b 3500 a 3200 a 3000
450 b 4000 a 3800 a 3500
500 c 4800 a 4600 a 3900
550 c 5200 b 5000 a 4400
630 c 6400 b 6200 a 5300 a 4400
700 c 6800 a 6000 a 5200
800 c 8000 b 8000 a 6400 a 6000
900 b 9000 a 7600 a 7000
1000 c 11000 a 9200 a 7800
1100 c 12000 b 10000 a 8800
1250 c 13500 b 12400 a 10600
1400 c 15000 c 13600 a 12000
1600 c 16000 b 16000
1800 b 18000
2000 c 22000
2200 c 24000
2500 d 27000
2800 d 30000
SCAC141
Semiconductor fuses
Semiconductor (AC) fuses
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Curves set
12/04
Top: Curves indicating the maximum time
constant L/R of the fault path as a function of
the DC voltage U, for the rated currents in the
sizes indicated in the table.
Ipm (1) values indicate the minimum breaking
current in Amperes (A).
Remark: When the fault current di/dt is very
large, this condition can be exceeded. It is the
case for faults occurring in voltage commutated
inverters.
Below: Curves indicating peak arc voltage Um
which may appear across fuse terminals as a
function of the DC working voltage U, for
various time constant L/R of fault path.
DC working voltage possibilities
Rated Curves (*) and Ipm (1) corresponding to the rating
current 70 71 72 73 2x72 2x73
IN(A) *Ipm *Ipm *Ipm *Ipm *Ipm *Ipm
(A) (A) (A) (A) (A) (A)
Semiconductor fuses
Semiconductor (AC) fuses
SCAC142 12/04
Protistor®Square-body Fuses
PSC aR sizes 7x - 650V to 1300 VAC
Microswitches PSC 3x &7x
Main Characteristics
MS 7V 1-5
- MICROSWITCH SYSTEMS ADAPTED
TO THE FOLLOWING FERRAZ SHAWMUT FUSES ONLY:
- PSC sizes 30, 31, 32, 33, 2x32, 2x33 / 70, 71, 72, 73, 272, 273
except plain blades
- PSC LR sizes 33, 233, 73, 273
- PERMANENT INDICATION OF FUSE STATE: CONDUCTIVE
BLOWN
- MANUAL RESETTING
- STANDRAD AND LOW ELECTRICAL LEVEL WITH DIFFERENT INSULATION LEVELS
- BS TYPE FOR USE IN CORROSIVE ATMOSPHERE
- MS 3V 1-5 UR AND MS 7V 1-5 UR TYPE UL ARE RECOGNIZED
Code
AC
Insulation
voltage
rating
(***)
Breaking Capacity AC voltage
withstand
test
(*)
Current
rating
Positive
operating
voltage/current
Fire class
according
to UL 94
Impulse
voltage test
Uimp1.2/50
µs
(**)
Non inductive circuit
Inductive circuit : L/R = 25ms
Current 30V 110V 250V 30V 110V 250V
* Between power circuit and microswitch terminals as per IEC 60 and 694 and NFC 64010 (50/60 Hz 1 min duration in dry air)
** Between power circuit and microswitch terminals Uimp: impulse voltage as per IEC 60947-1
*** Between power circuit and microswitch terminals
Warning: microswitch systems exclusively designed for FERRAZ SHAWMUT.
PSC Fuses fitted a petented trip-indicator, saving use of EDV
MS 3V 1-5
MS 3V 1-5 UR
MS 7V 1-5
MS 7V 1-5 UR
MS 3V 1-5 BS
MS 3V 1-9 BS
MS 7V 1-5 BS
MS 7V 1-9 BS
MS 3V 1-5 ET
MS 7V 1-5 ET
1000 V
1500V
1000 V
1500V
1000V
1500V
20 V
50 mA
10 V
10 mA
10 V
10 mA
10 A
3 A
3 A
50/60 Hz
DC
50/60 Hz
DC
50/60 Hz
DC
10 A
0,4 A
3 A
0,5 A
3 A
0,5 A
10 A
0,2 A
3 A
0,25 A
3 A
-
10 A
4 A
2 A
3 A
2 A
2 A
10 A
0,2 A
1 A
0,2 A
1 A
0,2 A
10 A
0,1 A
1 A
0,1 A
1 A
-
8,5 kV
12 kV
8,5 kV
12 kV
8,5 kV
12 kV
14 kV
20 kV
14 kV
20 kV
14 kV
20 kV
H.B
10 A
8 A
3 A
3 A
3 A
3 A
SCAC143
Semiconductor fuses
Semiconductor (AC) fuses
12/04
Protistor®Square-body Fuses
PSC aR sizes 7x - 650V to 1300 VAC
Microswitches for PSC 3x &7x
MS 3V…
MS 7V...
Indication systems for PSC Fuse sizes 30 to 73
Ref.
Number
Designation
Fuse
size Pack.
Weight
(g)
Indication
style
39
42
X310014
MS3V1-5
4
2
1
34.6 32.7
6.35 x 0.8
1
4
2
10
X310014
MS3V1-5
position déclenchée
switched position
34.5 32.7
6.35 x 0.8
1
4
2
10
K310003
MS7V1-5BS
position déclenchée
switched position
32.7
10
S310010
MS7V1-5 ET
4.75 x 0.5
1
4
2
32.7
4.75 x 0.5
1
4
2
10
R310009
MS3V1-5 ET
62,5
42
K310003
MS7V1-5BS
4
2
1
30, 31
32, 33
MS 3V 1-5
(fig.1)
MS 3V 1-5 UR
MS 3V 1-5 BS
(3)
MS 3V 1-9 BS
(4)
MS 3V 1-5 ET
(fig.2)
34
34
44
34
3 pieces
3 pieces
3 pieces
3 pieces
Catalog Number
MS3 V1-5
MS3 V1-5UR
MS3-V1-5BS
MS3V1-9BS
MS3V1-5 ETANCHE
Standard NO-NC
Low level NO-NC
Double pole
Low level
Low level NO-NC
X310014
Y310038
W310013
T310011
R310009
These patented indication systems are exclusively hand resettable.
(7) Same as fig. 5
(8) Same dimensions as figure 5 but with 2 microswitches side by side
(9) Watertightness class
Warning: Microswitch systems exclusively designed for FERRAZ SHAWMUT PSC fuses fitted with a
patented trip-indicator, saving use of EDV.
IP 50 (9)
(3) Same as fig.1
(4) Same dimensions as figure 1
but with 2 microswitches side by side
(9) Watertightness class
(fig. 1)
(fig. 2)
(fig. 5)
(fig. 6)
Ref.
Number
Designation
Fuse
size Pack.
Weight
(g)
Indication
style
70, 71
72, 73
MS 7V 1-5
(fig.5)
MS 7V 1-5 UR
MS 7V 1-5 BS
(3)
MS 7V 1-9 BS
(4)
MS 7V 1-5 ET
(fig.6)
45
45
55
55
3 pieces
3 pieces
3 pieces
3 pieces
Catalog Number
MS7 V1-5
MS7 V1-5UR
MS7-V1-5BS
MS7V1-9BS
MS7V1-5 ETANCHE
Standard NO-NC
Low level NO-NC
Double pole
Low level
Low level NO-NC
J310002
Z310039
K310003
P310007
S310010 IP 50 (9)
Semiconductor fuses
Semiconductor (AC) fuses
SCAC144
Protistor®Square-body Fuses
PSC aR sizes 7x - 650 V to 1300 VAC
Metric-studs
12/04
Ref. Number
S098801
T098802
V098803
W098804
X098805
Designation Catalog Number
HC stud pair
M8x30 & M8x35
HC stud pair
M10x30 & M10x50
HC stud pair
M12x35 & M12x50
HC stud pair
M10x50
HC stud pair M12x50
STU M8x30 M8x35
STU M10x30 M10x50
STU M112x35 M12x50
STU M10x50
STU M12x50
Pack.
6 pairs
6 pairs
6 pairs
6 pairs
6 pairs
Unit weight
(g)
23
40
60
45
45
Maximum stud tightning
torque (Nm) (1)
10
15
15
10
15
15
10
15
15
Stud type
M8x30 & M8x35
M10x30 & M10x50
M12x35 & M12x50
M8x30 & M8x35
M10x30 & M10x50
M12x35 & M12x50
M8x30 & M8x35
M10x30 & M10x50
M12x35 & M12x50
Maximum nut tightning
torque (Nm) (1)
13.5
26
46
13.5
26
46
13.5
26
46
Stud mounting
Sizes 0 and 1
Size 2
Size 3
Size 2
Size 3
Type and fuse size
Torque type
(1) Factory limit on torque at 20°C ambient: +0, -2Nm; except on 46Nm value (+0, -4Nm)
We recommend the use of studs, whose quality is suited to all FERRAZ SHAWMUT square-body fuses with terminals
Balanced torque
Balanced torque
Unbalanced torque
Metric studs for threaded terminal fuses
