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2858344 Datasheet(PDF) 2 Page - PHOENIX CONTACT

Part No. 2858344
Description  Intrinsically safe basic terminal block with isolating connector, test connections and surge protection, with additional temperature measurement of the input terminal block for cold junction compensation, for mounting on NS 35/7.5
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Maker  PHOENIX [PHOENIX CONTACT]
Homepage  http://www.phoenixcontact.com
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2858344 Datasheet(HTML) 2 Page - PHOENIX CONTACT

   
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10/21/2014   Page 2 / 5
Surge protection device - TT-PI-EX-TB/T - 2858344
Technical data
General
Type
PI basic terminal block
Number of positions
2
Direction of action
Line-Line & Line-Earth Ground
Protective circuit
IEC test classification
C1
C2
C3
D1
Nominal voltage UN
24 V DC
Maximum continuous operating voltage UC
30 V DC
21 V AC
Maximum continuous voltage UC (wire-wire)
30 V DC
21 V AC
Nominal current IN
250 mA (40°C)
Operating effective current IC at UC
≤ 5 µA
Residual current IPE
≤ 4 µA
Nominal discharge current In (8/20) µs (Core-Core)
5 kA
Nominal discharge current In (8/20) µs (Core-Earth)
5 kA
Total surge current (8/20) µs
10 kA
Max. discharge current Imax (8/20) µs maximum (Core-Core)
5 kA
Max. discharge current Imax (8/20) µs maximum (Core-Earth)
5 kA
Nominal pulse current Ian (10/1000) µs (Core-Core)
100 A
Nominal pulse current Ian (10/1000) µs (Core-Earth)
100 A
Impulse discharge current (10/350)˽µs, peak value limp
1 kA
Output voltage limitation at 1 kV/µs (Core-Earth) spike
1.85 kV
Output voltage limitation at 1 kV/µs (Core-Core) static
≤ 45 V
Residual voltage at In, (conductor-conductor)
≤ 45 V
Residual voltage with Ian (10/1000)µs (conductor-conductor)
≤ 45 V
Voltage protection level UP (Core-Core)
≤ 90 V (C2 (10 kV/5 kA))
Voltage protection level UP (Core-Earth)
≤ 1.85 kV (C2 (10 kV/5 kA))
Response time tA (Core-Core)
≤ 1 ns
Response time tA (Core-Earth)
≤ 100 ns
Input attenuation aE, sym.
0.8 dB (≤ 1 MHz / 50 Ω)
0.3 dB (≤ 250 kHz / 150 Ω)
Cut-off frequency fg (3 dB), sym. in 50 Ohm system
typ. 7 MHz
Cut-off frequency fg (3 dB), sym. in 150 Ohm system
typ. 2 MHz


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