cat fusiblespv gb

8/2/2019 Cat FusiblesPV Gb

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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



Industrial fuses

Fusibles PV


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




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



Industrial fuses

Fusibles PV


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

cat fusiblespv gb

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