Semiconductor fuses
Semiconductor (AC) fuses
SCAC178
Other Protistor®Fuses
Ferrule Fuses
22x58 gRC (URD) - 600 V to 690 VAC
12/04
Main Characteristics
Minimum operating voltage for the trip-indicator: 20 V
EXTREMELY BREAKING CAPACITY RATING FUSES: PROTECTION OF SEMICON-
DUCTORS
IN COMPLIANCE WITH IEC STANDARD 60269.1 AND 4
600 - 690 V VOLTAGE RATING (CURRENT RATING 12 TO 135 A)
AS PER IEC 33
gR CLASS (CURRENT RATING 12 TO 100 A) ACCORDING TO VDE 636-23
- CLEARING ALL OVERLOADS
- IMPROVED SAFETY AND PROTECTION
- ENABLING SELECTIVE COORDINATION AMONG ALL
DISTRIBUTION CIRCUIT FUSES
aR CLASS (CURRENT RATING 125 AND 135 A) AS PER VDE 636-23 AND IEC
60269.4
TWO MODELS COMPLYING WITH NF C 63210 AND 63211
WITH OR WITHOUT TRIP-INDICATOR
gRC FUSES ARE 700VAC-DC UL RECOGNIZED
See Fuse Blocks and Fuse Holders section
Class
gRC
URD
Voltage
rating
UN( V )
690
600
Current
rating
IN( A )
20
25
32
40
50
63
80
100
125
135
Tested
Breaking capacity
100k A
@ 690 V
100k A
@ 600 V
Estimated
Breaking capacity
300k A
@ 690 V
300k A
@ 600 V
Total
clearing
I2t @ UN
I2tt (A2s)
Watts loss
0.8 ININ
4.0
4.5
5.0
5.5
7.0
8.0
9.0
10
14
15
6.5
7.5
9.0
10
11.5
13.5
15.5
17
22
25
Pre-arcing
I2t @ 1 ms
I2tp (A2s)
17
39
72
118
242
430
970
2080
2900
3360
125
280
490
785
1390
2460
5565
11950
14000
17700
SCAC179
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
Ferrule Fuses
22x58 gRC (URD) - 600 V to 690 VAC
12/04
t (s)
t (s)
I (A)
I (A)
Time vs current characteristics
10 10 210 310 4
10 10 210 310 4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
10 4
10 3
10 2
10
1
10 -1
10 -2
10 -3
10 -4
125
135
20 25
32 40
50
6380
100
These curves indicate, for each rated current, pre-arcing time vs. R.M.S.
pre-arcing current
Tolerance for mean pre-arcing current
± 9% for all current ratings
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
a= 130
A2=0.6
B1= 1.25
B2= 0.6
Cf3= 0.8
22 X 58 Without trip-indicator
Current
rating
12
16
20
25
32
40
50
63
80
100
20
25
32
40
50
63
80
100
125
135
Ref. Number
F232719
G232720
C220940
B220916
A220915
Z220914
Y220913
X220912
Y220821
W220911
D220734
G220921
F220920
E220919
D220918
C220733
X220820
C220917
A220708
B220709
Designation
6,900 CP gRC 22.58 12
6,900 CP gRC 22.58 16
6,900 CP gRC 22.58 20
6,900 CP gRC 22.58 25
6,900 CP gRC 22.58 32
6,900 CP gRC 22.58 40
6,900 CP gRC 22.58 50
6,900 CP gRC 22.58 63
6,900 CP gRC 22.58 80
6,900 CP gRC 22.58 100
6,921 CP gRC 22.58 20
6,921 CP gRC 22.58 25
6,921 CP gRC 22.58 32
6,921 CP gRC 22.58 40
6,921 CP gRC 22.58 50
6,921 CP gRC 22.58 63
6,921 CP gRC 22.58 80
6,921 CP gRC 22.58 100
621 CP URD 22.58 125
621 CP URD 22.58 135
Catalog Number
FR22GC69V12
FR22GC69V16
FR22GC69V20
FR22GC69V25
FR22GC69V32
FR22GC69V40
FR22GC69V50
FR22GC69V63
FR22GC69V80
FR22GC69V100
FR22GC69V20T
FR22GC69V25T
FR22GC69V32T
FR22GC69V40T
FR22GC69V50T
FR22GC69V63T
FR22GC69V80T
FR22GC69V100T
FR22UD60V125T
FR22UD60V135T
58
ø 22.2
CC’
gRC
URD
Weight: 57 g
Packaging: 10 pieces
Weight: 57 g
Packaging: 10 pieces
except 125 and 135A rating
22 X 58 With trip-indicator
Electrical characteristics
58 7 mini
Ø 22,2
Ø 5
Semiconductor fuses
Semiconductor (AC) fuses
SCAC180
Other Protistor®Fuses
Ferrule Fuses
22x58 gRC (URD) - 600 V to 690 VAC
12/04
Total clearing I2t I2t corrective factor
Peak arc voltage
0 200 400 600 800
0 200 400 600 800
10 5
10 4
10 3
10 2
10
Left: Curves show value of peak let-through current
IC as a function of the available fault current Ip.
Above: Horizontal curves show, for each rated current, maximum values of total
clearing I2t (I2tt) as a function of prospective current Ip @ 690 V. cos
ϕ
= 0.15
(125-135 A @ 600 V.cosϕ = 0.15)
Oblique lines indicate total clearing duration Tt with associated pre-arcing
duration in brackets.
Mean curves showing
variation of total clearing
time (I2tt) and total clea-
ring duration Tt as a
func-
tion of operating voltage U.
1- 125 and 135 A rating
2- 20 to100 A rating
Curve showing peak
value Um of arc vol-
tage which appears
across fuse-link as a
function of operating
voltage U @ cos ϕ=
0.15
1-125 and 135A rating
2-20 to 100A rating
10 10 210 310 4Ip (A)
U (V)
U (V)
I2t (A2s)
K
Um (V)
10 ms (5 ms)
10 ms (2,8 ms)
8 ms (2 ms)
7 ms (1,5 ms)
6 ms (1,3 ms)
5 ms (1 ms)
4 ms (0,8 ms)
3 ms (0,6 ms)
2 ms (0,4 ms)
1,5 ms (0,3 ms)
1 ms (0,2 ms)
135 A
125 A
100 A
80 A
63 A
50 A
40 A
32 A
25 A
20 A
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1600
1400
1200
1000
800
600
Current limitation curves
10 4
10 3
10 2
10
10 10 210 310 410 5Ip (A)
IC(A)
135 A
125 A
100 A
80 A
63 A
50 A
40 A
32 A
25 A
20A
Ic= 2 Ip
Ic= 2.5 Ip
12
2
1
SCAC181
Semiconductor fuses
Semiconductor (AC) fuses
Other Protistor®Fuses
Ferrule Fuses
22x58 gRC (URD) - 600 V to 690 VAC
DC Application data
0
100
200
300
400
500
600
700
0
100
200
300
400
500
600
700
100
90
80
70
60
50
40
30
20
10
0
1200
1100
1000
900
800
700
600
0
U (V)
U (V)
1
2
L/R (ms) Um (V)
Above: Curve indicates peak arc voltage Um
which may appear across fuse terminals at wor-
king voltage U.
NEW gR-CLASS
OPTIMAL PROTECTION OF POWER EQUIPMENT
Thanks to recent technological developments, Ferraz Shawmut today
markets gR-class PROTISTOR®fuses capable of clearing all types of over-
loads, from low multiples of current ratings up to very high short-circuit
currents. Enhanced performance enables these fuses to provide solu-
tions to many previously unsolved problems in power electronics: pro-
tection of cables without the use of additional components, protection
of equipment from fire hazards, selective coordination of different fuses
within a single power distribution installation...
SELECTIVE COORDINATION
gR-class semiconductor fuses can be utilized in association with gI and gG-class
low voltage power distribution fuses of the same current rating, installed upst-
ream.
In a “selectively coordinated“ distribution installation, melting is limited
to the fuse associated with the faulted circuit, while upstream fuses remain
intact. This prevents unnecessary down-time due to power blackouts in non-
faulted branches.
FERRAZ SHAWMUT EXPERTISE
gR-class fuses should be used in the design of low voltage equipment and in the protection of
power electronics equipment. Designers can often substitute a gR-class fuse for an aR-class fuse
(10x38, 14x51, 22x58, PSC 000 and 17x49 DIN80 or BS 88-4) but the reverse is not true: an aR
fuse can never replace a gR fuse. Start protecting your new equipment with gR-class fuses today.
The application of gR class fuses, with current ratings less than 100 Amps, offers enhanced pro-
tection, safety and reliability, along with reduced risk of replacement errors and assembly costs.
Example:
100A aR vs. 100A gR
aR
Relay
gR
Before After
gR 100A gR 100A
gG 100A
M M
Example of
selective
coordination
t
30s
300A
minimum interrupting
current
I
C'
C
100A "aR"
t
2h
110A
I
100A "gR"
Ces courbes indiquent la constante de temps L/R maximale admissible en fonc-
tion de la tension d’utilisation
Courbe 1 : Ip>1,6 IN pour fusibles gRC uniquement (calibres de 12 à 100 A)
Courbe 2 : Ip>2,5 IN pour fusibles gRC et URD
aR-CLASS vs. gR-CLASS
aR-class fuses feature a high minimum inter-
rupting current as compared with their cur-
rent rating. The primary time-current charac-
teristic of aR-class fuses is the CC’ curve,
above which another protection device must
be associated. The gR-class fuse represents
considerably improved performance in semi-
conductor protection
