https://www.phoenixcontact.com/us/produkte/2858881
04.10.2012Page2/6
Surge protection device-TT-ST-2/2-24DC-2858881
Technical data
General
Direction of action Line-Earth Ground
Width 6.2 mm
Height 100 mm
Depth 63.5 mm
Protective circuit
IEC category C1
IEC category C2
IEC category C3
IEC category D1
VDE requirement class C1
VDE requirement class C2
VDE requirement class C3
VDE requirement class D1
Nominal voltage UN 24 V DC
Maximum continuous operating voltage UC 30 V DC
Maximum continuous operating voltage UC 21 V AC
Maximum continuous voltage UC (wire-ground) 30 V DC
Maximum continuous voltage UC (wire-ground) 21 V AC
Nominal current IN 300 mA (45°C)
Operating effective current IC at UC ≤ 10 µA (per path)
Ground conductor current IPE ≤ 20 µA
Nominal discharge surge current In (8/20) µs (Core-Earth) 5 kA
Total surge current (8/20) µs 10 kA
Max. discharge surge current Imax (8/20) µs maximum (Core-
Earth) 5 kA
Nominal pulse current Ian (10/1000) µs (Core-Earth) 100 A
Nominal pulse current Ian (10/1000) µs (Core-Earth) 200 A (in total)
Lightning test current (10/350) µs, peak value limp 1 kA (per path)
Output voltage limitation at 1 kV/µs (Core-Earth) spike ≤ 40 V
Output voltage limitation at 1 kV/µs (Core-Earth) static ≤ 40 V
Residual voltage at In, (conductor-ground) ≤ 40 V
Residual voltage with Ian (10/1000)µs (conductor-ground) ≤ 45 V
Protection level UP (Core-Earth) ≤ 80 V (C2 (10 kV/5 kA))
Protection level UP (Core-Earth) ≤ 40 V (static)
Response time tA (Core-Earth) ≤ 1 ns
Input attenuation aE, asym. Typ. 0.6 dB (500 kHz/50 Ω system)
Input attenuation aE, asym. Typ. 0.1 dB (170 kHz/150 Ω system)
Input attenuation aE, asym. Typ. 0.1 dB (40 kHz/600 Ω system)
Cut-off frequency fg (3 dB), asym. (PE) in 50 Ohm system Typ. 3 MHz
Cut-off frequency fg (3 dB), asym. (PE) in 150 Ohm system Typ. 1 MHz
Cut-off frequency fg (3 dB), asym. (PE) in 600 Ohm system Typ. 250 kHz
Capacity (Core-Earth) 2 nF
Resistance in series 9.4 Ω ±10 % (per path)