https://www.phoenixcontact.com/us/products/2859424
10/21/2014Page3/6
Surge protection device-TT-ST-M-EX(I)-24DC-2859424
Technical data
Protective circuit
Response time tA (Core-Earth) ≤ 100 ns
Input attenuation aE, sym. typ. 1 dB (≤ 400 kHz/50 Ω)
typ. 0.4 dB (≤ 150 kHz / 150 Ω)
Cut-off frequency fg (3 dB), sym. in 50 Ohm system typ. 3 MHz
Cut-off frequency fg (3 dB), sym. in 150 Ohm system typ. 1 MHz
Resistance in series 6.6 Ω ±20 % (per path)
6.6 Ω
Surge protection fault message None
Max. required back-up fuse 200 mA (e.g. T in acc. with IEC 127-2/III)
Surge current resistance (conductor-conductor) C2 - 10 kV/5 kA
Surge current resistance (conductor-ground) C2 - 10 kV/5 kA
D1 - 1kA
Alternating current carrying capacity (conductor-ground) 2.5 A (1 s)
Connection data
Connection method Spring-cage connection
Connection type IN Spring-cage
Connection type OUT Spring-cage
Conductor cross section stranded min. 0.5 mm²
Conductor cross section stranded max. 2.5 mm²
Conductor cross section solid min. 0.5 mm²
Conductor cross section solid max. 4 mm²
Conductor cross section AWG/kcmil min. 24
Conductor cross section AWG/kcmil max 12
Standards and Regulations
Standards/regulations IEC 61643-21
General
Maximum inner capacitance C
i
4 nF
Maximum inner inductance L
i
1 µH
Max. input current I
i
200 mA (T4/≤ 85°C)
200 mA (T5/≤ 55°C)
200 mA (T6 / ≤ 40 °C)
Max. input voltage U
i
30 V
Maximum input power Pi 1.6 W
Insulation voltage to ground 500 V ±10 %
Conformity / approvals