https://www.phoenixcontact.com/us/produkte/2809607
05.10.2012Page2/7
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
