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05.10.2012   Page 2 / 7

Surge protection device - TT-SLKK5-S- 24DC - 2809607

Technical data

Protective circuit

IEC category

C3

VDE requirement class

C3

Nominal voltage UN

24 V DC

Maximum continuous operating voltage UC

28.2 V DC

Maximum continuous operating voltage UC

20 V AC

Maximum continuous voltage UC (wire-ground)

28.2 V DC

Maximum continuous voltage UC (wire-ground)

20 V AC

Nominal current IN

32 A (50°C)

Operating effective current IC at UC

≤ 5 µA

Ground conductor current IPE

≤ 5 µA

Nominal discharge surge current In (8/20) µs (Core-Earth)

169 A

Total surge current (8/20) µs

169 A

Max. discharge surge current Imax (8/20) µs maximum (Core-

Earth)

169 A

Nominal pulse current Ian (10/1000) µs (Core-Earth)

33 A

Output voltage limitation at 1 kV/µs (Core-Earth) spike

≤ 42 V

Output voltage limitation at 1 kV/µs (Core-Earth) static

≤ 41 V

Residual voltage at In, (conductor-ground)

≤ 59 V

Response time tA (Core-Earth)

≤ 1 ns

Cut-off frequency fg (3 dB), asym. (PE) in 150 Ohm system

Typ. 1.5 MHz

Capacity (Core-Earth)

1.35 nF

Message: Surge protection fault

None

Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth)

C3 (25 A)

Connection data

Connection method

Screw connection

Connection type IN

Screw terminal blocks

Connection type OUT

Screw terminal blocks

Screw thread

M3

Tightening torque

0.5 Nm

Stripping length

8 mm

Conductor cross section stranded min.

0.2 mm²

Conductor cross section stranded max.

4 mm²

Conductor cross section solid min.

0.2 mm²

Conductor cross section solid max.

4 mm²

Conductor cross section AWG/kcmil min.

24

Conductor cross section AWG/kcmil max

12

Connection, protective circuit

Standards/regulations

IEC 61643-21