Semiconductor fuses
Semiconductor (AC) fuses
SCAC190
Other Protistor®Fuses
Ferrule Fuses
27x60 gRB - 800 VAC
12/04
Voltage
rating
UN( V )
800
Class
gRB
Designation
821 CP GRB27.60 8
821 CP GRB27.60 10
821 CP GRB27.60 12
821 CP GRB27.60 16
821 CP GRB27.60 20
821 CP GRB27.60 25
821 CP GRB27.60 32
821 CP GRB27.60 40
821 CP GRB27.60 50
821 CP GRB27.60 63
821 CP GRB27.60 80
821 CP GRB27.60 100
821 CP GRB27.60 110
Catalog Number
FR27GB80V 8T
FR27GB80V 10T
FR27GB80V 12T
FR27GB80V 16T
FR27GB80V 20T
FR27GB80V 25T
FR27GB80V 32T
FR27GB80V 40T
FR27GB80V 50T
FR27GB80V 63T
FR27GB80V 80T
FR27GB80V 100T
FR27GB80V 110T
Ref.
Number
R221436
S221437
T221438
V221439
W
221440
X221441
Y221442
Z221443
A221444
B221445
C221446
D221447
E221448
Pack
10
10
10
10
10
10
10
10
10
10
10
10
10
Current
rating
IN( A )
8
10
12
16
20
25
32
40
50
63
80
100
110
Tested
Breaking
capacity
175 k A
@ 700V
90 kA
@ 800V
Total
clearing
I2t @ UN
I2tt (A2s)
70
100
180
250
350
600
1000
1400
2700
5500
11000
19000
27000
Pre-arcing
I2t @ 1 ms
I2tp (A2s)
4.25
8.0
17.0
26.5
38.5
73.0
130
195
430
965
1890
3480
4670
Main Characteristics
Watts loss
0.8 IN IN
1.2
1.3
1.4
1.9
2.4
2.8
3.5
4.7
4.8
5.6
6.4
7.4
7.7
2.0
2.3
2.5
3.5
4.0
5.0
6.0
8.0
8.5
10
11.5
13
14
Minimum operating voltage for trip-indicator: 20 V
800 VAC
gRB from 8 to 110 A
Size: 27 x 60
Fuseholder Solution: See Gears and Fuse gears section
EXTREMELY HIGH BREAKING CAPACITY FUSES: PROTECTION
OF POWER SEMICONDUCTORS
COMPLYING WITH IEC STANDARDS 60269-1 AND 4
800 V VOLTAGE RATING ACCORDING TO IEC 33
gR CLASS AS PER IEC 60269-4
- CLEARING ALL OVERLOADS
- IMPROVED SAFETY AND PROTECTION
- ENABLING SELECTIVE COORDINATION WITH OTHER FUSES
WITH TRIP INDICATOR
60,3
Ø 27
Ø 5
7
Ø 27
Ø 5
7
60,3
Unit weight
78 g
Dimensions
Trip indicator force: 4.5N at 0mm - 2.5N at 7mm
SCAC191
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
Ferrule Fuses
27x60 gRB - 800 VAC
12/04
Total clearing I2t
t (s)
Time vs current characteristics
10 110 210 310 4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
Left: Curves show, for
each rated current,
pre-arcing time vs.
R.M.S. pre-arcing cur-
rent
.
Tolerance for
mean pre-arcing
current ± 8%.
gRB
a=130
A2=0.6
B1=1.25
B2=0.6
Cf3=0.8
810
12 16
20 25
32 40
50 63
80 100
110
10 4
10 3
10 2
10 1
10 5
10 4
10 3
10 2
10 1
Current limitation curves
10 110 210 310 410 5
10 110 210 310 410 5
IC(A)
110 A
100 A
80 A
63 A
50 A
40 A
32 A
25 A
20 A
16 A
12 A
10 A
8 A
110 A
100 A
80 A
63 A
50 A
40 A
32 A
25 A
20 A
16 A
12 A
10 A
8 A
I (A)
Below: Curves show, for each rating, value of peak let-through
current Ic as a function of available fault current Ip.
I2t corrective factor
Left: Curve shows
peak value Um of arc
voltage which appears
across the fuse link as a
function of oper-ating
voltage U @ cos ϕ=
0.15
Peak arc voltage
Left: Curve enables com-
putation of power losses
P for a IN-rated fuse as a
function of the R.M.S.
current I (as a multiple of
INfor steady state opera-
tion)
Watts loss
Left: Mean curve
shows variation of
total clearing time (I2tt)
and total clearing
duration Tt as a
func-
tion of operating vol-
tage U.
U (V)
0
100
200
300
400
500
600
700
800
900
90
80
70
60
50
40
30
20
10
0
Above: Curves indicate permissible value of time cons-
tant L/R as a function of DC working voltage.
1
- INfrom 80 to 110 A /
2
- INfrom 25 to 63 A
3
- INfrom 8 to 12 A
Ip (A)
Ip (A)
1 2
3
1
- L/R = 60 ms /
2
- L/R = 30 ms
Above: Curve indicates peak arc voltage Um
which may appear across fuse terminals at
working voltage U
, for different values of time
constant L/R of the fault circuit.
Above: Horizontal curves show maximum values of total clearing I2t (I2tt) as function
of prospective current Ip. @ UN.with cosϕ= 0.15.
Oblique lines indicate total clea-
ring duration Tt and associated pre-arcing duration in brackets.
U (V)
0
500
2000
1000
0
U (V)
1
2
DC Application data
L/R(ms)
Ic (A)
I/IN
U(V)
P/PN
Um(V)
K
Um (V)
