SPD Class B+C, SP-B+C/

Lightning current arrester - surge arrester Sets, Lightning protection classes I, II, III, IV

13

Surge Protection

• Field of application: For the protection of low voltage distribution systems

against direct lightning stroke into the overhead power supply line or exter-

nal lightning protection system (IEC 62305) and against indirect lightning

stroke and switching operations.

• Application according to IEC 60364-5-53 Clause 534

• Test class

and

in accordance with IEC 61643-1

• SPD-type

and

in accordance with EN 61643-11

• Capsuled version: during the discharge process, the device does not issue

any hot ionised gases. Therefore, there is no need for keeping a safety dis-

tance to flammable materials.

II

I

Technical Data

SP-B+C/3

SP-B+C/3+1

Electrical

Design

capsuled

capsuled

Responding time t

r

< 25 ns

< 25 ns

Voltage protection level U

p

1.5 kV

1.5 kV

Maximum continuous operating voltage U

C

L-(PE)N / N-PE

440 VAC / –

440 VAC / 260 VAC

Temporary overvoltage test value U

T

L-(PE)N

U

T = Uc

U

T = Uc

N-PE

–

1200 VAC (200 ms)

Rated frequency

50/60 Hz

50/60 Hz

Discharge current (8/20) µs I

max/In

3x35 kA

100 kA

Impulse current I

imp (10/350) µs

Peak current

100 kA

100 kA

Charge Q

50 As

50 As

Specific energy

2500 kJ/

Ω

2500 kJ/

Ω

Follow current interrupt rating I

fi

L-(PE)N / N-PE

at 260 V

3kA

rms / –

3kA

rms / 100Arms

at 440 V

1,5kA

rms / –

1,5kA

rms / –

Short-circuit current strength at max. back-up fuse

25kA

rms

25kA

rms

Maximum back-up fuse

125 AgL

125 AgL

Connection diagram

Mechanical

Frame size

45 mm

45 mm

Device height

90 mm

90 mm

Device width

110 mm

164 mm

Weight

1100 g

1420 g

Upper and lower lift terminal capacity

rigid

L, N, PEN / PE

0.5 - 35 mm2

0.5 - 35 mm2 / 10 - 50 mm2

flexible

L, N, PEN / PE

0.5 - 25 mm2

0.5 - 25 mm2 / 16 - 35 mm2

Tightening torque of terminal screws

4 - 4.5 Nm

4 - 4.5 Nm / 6 - 8 Nm

Mounting

quick fastening on DIN rail IEC/EN 60715

Degree of protection acc. to IEC 60529 (installed)

IP20 (IP40)

Accessories: busbars

Z-GV-U/

Permitted relative air humidity

< 95%

Permitted ambient temperature

-40°C to +70°C

Dimensions (mm)

Installation of lightning current arresters upstream of the meter is subject to

co-ordination with the relevant power supply company.

Installation of an r.m.s.ective protection cascade (SPD classes B, C, D)

requires co-ordinated application of the respective protective devices. This is

ensured by a defined line length between protective devices. When using

lightning current arresters of type SPI in connection with surge arresters SPC

with a maximum continuous operating voltage Uc of 460 V AC, no specific

line length or decoupling coils are required.

Practical Hint

T1

T2

Lightning current arrester - surge arrester

. . .SPI-35/440

. . .SPI-100/NPE for protection class I, II, III, IV

. . .SPC-S-20/460/3

Lead-through terminal

. . .SPB-D-125

Busbar

. . .Z-GV-U/6

. . .Z-GV-U/9

. . .Z-GV-16/3P-3TE/6