166364 datasheet(13/36 Pages) EATON

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Surge Protection

SPD Class B+C, Lightning Current Arrester - Surge Arresters SPBT12-280

• Field of application

For the protection of low voltage distribution systems against transient

overvoltage caused by direct and indirect lightning stroke and switching

operations.

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

• Test class

in accordance with IEC 61643-1

• SPD-type

in accordance with EN 61643-11

• Lightning protection classes III and IV in accordance with IEC 62305

• Busbars ZV-KSBI are available for all customary applications

Technical Data

SPBT12-280-1+NPE

SPBT12-280-3+NPE

Electrical

per pole

Responding time (rate of voltage rise 5 kV/µs) L-N / N-PE

< 25 ns / < 100 ns

Voltage protection level U

L-N / L-PE / N-PE

< 1.5kV

Maximum continuous operating voltage U

L-N / N-PE

280 VAC / 255 VAC

Temporary overvoltage test value U

T (5 s)

L-N / L-PE

348 VAC / 370 VAC

(200 ms)

N-PE

1200 VAC

Rated frequency

50/60 Hz

Open circuit voltage U

10 kV

20 kV

Nominal discharge current (8/20) µs I

L-N / N-PE

25 kA / 100 kA

3x25 kA / 100 kA

Maximum discharge current I

max

L-N / N-PE

50 kA / 100 kA

3x50 kA / 100 kA

Imulse current I

imp (10/350) µs

Peak current

L-N / N-PE

12.5 kA / 100 kA

3x12.5 kA / 100 kA

Charge Q

50 As

Specific energy

2500 kJ/

Follow current interrupt rating I

N-PE

100 A

r.m.s

100 A

r.m.s

Maximum back-up fuse

160 AgL/gG

Maximum short-circuit current

50 kA

r.m.s

50 kA

r.m.s

Connection diagram

Mechanical

Frame size

45 mm

Device height

80 mm

Device width

52.5 mm

87.5 mm

Weight

375 g

626 g

Permitted ambient temperature

-40°C to +70°C

Degree of protection (built-in)

IP40

Upper and lower lift terminal capacity

L, N

4 - 25 mm2

N, PE

4 - 35 mm2

Upper and lower open mouthed terminals

for busbar thickness up to

1.5 mm

Tightening torque of terminal screws

2.4 - 3 Nm

Quick fastening on DIN rail according to

IEC/EN 60715

Accessories: busbars 16 mm2

Type ZV-KSBI ...

Block Diagram

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

SPBT12-280-1+NPE

SPBT12-280-3+NPE

. . .SPBT12-280

. . .ASAUXSC-SPM

. . .SPI-100/NPE

. . .ASLTT-63

SPBT12-280-3+NPE/BB

SPBT12-280-1+NPE-AX

SPBT12-280-3+NPE-AX

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