TT-2/2- 24DC 2838173 PHOENIX CONTACT Modular terminal block with three-stage surge protection for two signal.. View larger
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TT-2/2- 24DC 2838173 PHOENIX CONTACT Modular terminal block with three-stage surge protection for two signal..

TT-2/2- 24DC





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Modular terminal block with three-stage surge protection for two signal wires with common reference potential, separate ground connection, nominal voltage: 24 V DC, for mounting on NS 35/7.5, terminal width: 6.2 mm, terminal height: 54.6 mm

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Overvoltage Protection Over Voltage

TRABTECH Power and Signal Quality - PHOENIX CONTACT

Surge protection for measurement and control technology - PHOENIX CONTACT

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Height79.6 mm
Width6.2 mm
Depth54.6 mm

Ambient conditions

Ambient temperature (operation)-40 °C ... 85 °C
Degree of protectionIP20


Housing materialPA 6.6
Flammability rating according to UL 94V-0
Standards for cearances and creepage distancesIEC 60664-1
Mounting typeDIN rail: 35 mm
TypeDouble-level terminal block with PE foot – separate PE connection
Number of positions2
Direction of actionLine-Earth Ground

Protective circuit

IEC test classificationC1
Nominal voltage UN24 V DC
Maximum continuous voltage UC30 V DC
Maximum continuous voltage UC (wire-ground)30 V DC
Nominal current IN300 mA (40°C)
Operating effective current IC at UC≤ 10 µA (per path)
Standby power consumption PC≤ 1430 mVA
Residual current IPE≤ 10 µA (per path)
Nominal discharge current In (8/20) µs (Core-Earth)5 kA
Total surge current (8/20) µs10 kA
Nominal pulse current Ian (10/1000) µs (Core-Earth)100 A
Impulse discharge current (10/350)˽µs, peak value limp500 A
Output voltage limitation at 1 kV/µs (Core-Earth) spike≤ 50 V
Voltage protection level Up (core-ground)≤ 90 V (C2 - 10 kV / 5 kA)
≤ 55 V (C1 - 1 kV/500 A)
≤ 45 V (C3 - 10 A)
≤ 50 V (C3 - 100 A)
≤ 130 V (D1 - 500 A)
Response time tA (Core-Earth)≤ 1 ns
Input attenuation aE, asym.0.4 dB (≤ 200 kHz / 50 Ω)
0.1 dB (≤ 30 kHz/150 Ω)
Cut-off frequency fg (3 dB), asym. (PE) in 50 Ohm systemtyp. 1.5 MHz
Cut-off frequency fg (3 dB), asym. (PE) in 150 Ohm systemtyp. 550 kHz
Capacity (Core-Core)≤ 4 nF
Resistance in series6.6 Ω ±20 %
6.6 Ω
Surge protection fault messageNone
Max. required back-up fuse315 mA (T/IEC 60127-2/3)
Impulse durability (conductor-ground)C1 - 1 kV/500 A
C2 - 10 kV/5 kA
C3 - 100 A
D1 (500 A)
Alternating current carrying capacity (conductor-ground)0.5 A/1 s

Connection data

Connection methodScrew connection
Connection type INScrew terminal blocks
Connection type OUTScrew terminal blocks
Screw threadM3
Tightening torque0.8 Nm
Stripping length8 mm
Conductor cross section flexible min.0.2 mm²
Conductor cross section flexible max.2.5 mm²
Conductor cross section solid min.0.2 mm²
Conductor cross section solid max.4 mm²
Conductor cross section AWG min.24
Conductor cross section AWG max.14

Datasheet - PDF

PHOENIX CONTACT-2838173-TT-2/2- 24DCEnglish143 KbytesPHOENIX CONTACT-2838173-TT-2/2- 24DC

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