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8/2/2019 Cat FusiblesPV Gb
http://slidepdf.com/reader/full/cat-fusiblespv-gb 1/4
General Catalogue 2011-2012 SOCOMEC
PV Fuses Industrial fuses
PV fuses 10 x 38 gR 1000 V d.c. for photovoltaic applications
Function‹
SOCOMEC PV fuses protect the
installation against the inverse over-
currents which could occur in the
photovoltaic installation.
Conformity
to standards
‹
IEC 60269-1
IEC 60269-2
IEC 60269-6
NF EN 60269-1
VDE 0636-10
•
•
•
•
•
Approvals and
certifications(1)
‹
(1) Please consult us.
Advantages‹
Performance
• High breaking capacity at 1000 V d.c.
• The working range adjusted for small
over-currents specific to PV installations.
• Simple, reliable discrimination.
Reliability
• Fuses are simple and totally sealed
products which guarantee a long-term
protection without any maintenance.Safety
• The energy released during a short-
circuit is contained within the sealed fuse
cartridge.
a p p l i_ 2 8 2_
a
f u s i b_
1 7 7_
a
8/2/2019 Cat FusiblesPV Gb
http://slidepdf.com/reader/full/cat-fusiblespv-gb 2/4
Industrial fuses
Fusibles PV
General Catalogue 2011-2012 SOCOMEC
What you need to know‹
Used Characteristics
• ISC : short circuit current of the PV string
• ISC MAX : short circuit current of the PV string related to maximum sunlight
density
• IRM : maximum admitted reverse current
• In : fuse rating or fuse rated current (at 25°C in a RM disconnect switch)
• Nc : number of PV strings in parallel connection
• Ue : maximum fuse rated voltage
• UOC MAX : maximum open circuit voltage in the lowest temperature conditions
When to protect
A PV string requires an over current protection when its own maximum
admissible reverse current characteristic (Irm) is less than the current generated
by the rest of the installation (current generated by the “Nc-1” other strings).
The protection is obligatory if Nc ≤ 1+ (IRM / ISC )
How to protect
The overload protection is to be applied at each of the two polarities,
regardless of whether the d.c. installation is earthed or not.
How to choose the fuse protection‹
Voltage
Ue > UOC MAX
In the absence of complementary information use U OC MAX =1.2 U OC.
Fuse rating determination
Determination of the Fuse Rated Current consists of choosing a protection
capable of:
• supporting without fusing the normal overload current during the periods of
maximum sunlight density at the ambient temperature of the enclosure in
which the fuse is installed
In > ISC MAX
In the absence of complementary information use ISC MAX = 1.4 ISC
• melting and reliably clearing the fault before the PV modules are damaged by
the reverse current
In < IRM
m a n n e_
4 9 0_
a
8/2/2019 Cat FusiblesPV Gb
http://slidepdf.com/reader/full/cat-fusiblespv-gb 3/4
General Catalogue 2011-2012 SOCOMEC
PV 1000 V d.c. fuses - Size 10 x 38 mm
References
without striker
Standard dimensions (mm) as per IEC 60269-2
Size Striker A B C
10 x 38 Without 10.3 38 10.5
B
C
A
f u s i b_
1 6 7_
a_
1_
x_
c a
t
10 x 38 mm gPV
f u s i b_
1 6 8_
a
PV Fuses
(Pack of 10)
Rated
current I (A)
Rated voltage U
(V d.c.)
Dissipated power Breaking
capacity
I2t prearc
(A 2s)
I2t
at 1000 V d.c. To be ordered Referenceat In (W) at 0.8 In (W)
1 1000 0.76 0.43 30 kA 0.35 1.3 10 60PV 0001
2 1000 1.54 0.84 30 kA 1.78 6.5 10 60PV 0002
3 1000 1.35 0.74 30 kA 9 33 10 60PV 0003
4 1000 1.84 1.08 30 kA 3 11 10 60PV 0004
6 1000 2.50 1.40 30 kA 8.5 32 10 60PV 0006
8 1000 2.57 1.47 30 kA 25 93 10 60PV 0008
10 1000 2.58 1.51 30 kA 11 52 10 60PV 0010
12 1000 2.61 1.42 30 kA 25 116 10 60PV 0012
15 1000 2.44 1.08 30 kA 25 116 10 60PV 0015
16 1000 2.70 1.56 30 kA 33 152 10 60PV 0016
20 1000 2.99 1.75 30 kA 85 390 10 60PV 0020
Max ambient tempera ture (°C) K t derating factor
40 0.92
45 0.90
50 0.87
55 0.85
60 0.82
65 0.79
70 0.76
75 0.72
80 0.69
Inf = Iscgen /K t
I nf - PV fuse rated current.
I scgen - PV generator short circuit current under STC.
K t - derating factor.
Ambient temperature derating factor
8/2/2019 Cat FusiblesPV Gb
http://slidepdf.com/reader/full/cat-fusiblespv-gb 4/4
Industrial fuses
Fusibles PV
General Catalogue 2011-2012 SOCOMEC
PV 10 x 38 mm
Time/current operation characteristics for PV fuses
1 A
2 A
3 A
4 A
6 A
8 A
1 0 A
1 2 A
1 5 / 1 6 A
2 0 A
10000
1000
100
10
1
0.1
0.01
0.001
1 10 100 1000
1 0 x 3 8 g P V
P r e a r c i n g t i m e ( s )
Prospective current (A rms)
Time-current characteristics
f u s i b_
1 7 5_
a_ 1_
g b_
c a t