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Surge protection device-TT-ST-M-EX(I)-24DC-2859424
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Spring-cage modular terminal block with integrated three-stage surge protection for a floating Ex-i signal circuit,
separate PE connection, nominal voltage: 24 V DC, for mounting on NS 35
Product Features
Disconnection of signal circuits by disconnect knife
Conductors can be led up to Ex protection zone 0
Can be used in Ex protection zones 1 and 2
Multi-stage modular terminal blocks with spring-cage connection
Key commercial data
Packing unit 1 pc
Weight per Piece (excluding packing) 28.48 GRM
Custom tariff number 85363030
Country of origin Germany
Technical data
Dimensions
Height 100 mm
Width 6.2 mm
Depth 63.5 mm
Ambient conditions
Ambient temperature (operation) -40 °C ... 80 °C
Ambient temperature (storage/transport) -40 °C ... 80 °C
Degree of protection IP20
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Surge protection device-TT-ST-M-EX(I)-24DC-2859424
Technical data
General
Housing material PA 6.6
Inflammability class according to UL 94 V-2
Color blue
Standards for air and creepage distances EN 60079-11
Mounting type DIN rail: 35 mm
Type Double-level terminal block with disconnect knife
Direction of action Line-Line & Line-Earth Ground
Protective circuit
IEC test classification C1
C2
C3
D1
Nominal voltage UN24 V DC
Maximum continuous operating voltage UC30 V DC
Maximum continuous voltage UC (wire-ground) 30 V DC
Nominal current IN200 mA (TA < 40 °C)
Operating effective current IC at UC≤ 10 µA
Residual current IPE ≤ 2 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
Total surge current (10/350) µs 2 kA
Max. discharge current Imax (8/20) µs maximum (Core-Earth) 5 kA
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-Core) spike ≤ 40 V
Output voltage limitation at 1 kV/µs (Core-Earth) spike ≤ 1.5 kV
Output voltage limitation at 1 kV/µs (Core-Core) static ≤ 40 V
Output voltage limitation at 1 kV/µs (Core-Earth) static ≤ 1.5 kV
Residual voltage at In, (conductor-conductor) ≤ 40 V
Residual voltage with Ian (10/1000)µs (conductor-conductor) ≤ 45 V
Voltage protection level UP (Core-Core) ≤ 60 V (C2 -5 kA)
Voltage protection level UP (Core-Earth) ≤ 1.5 kV (C2 -5 kA)
Response time tA (Core-Core) ≤ 1 ns
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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 Ci4 nF
Maximum inner inductance Li1 µH
Max. input current Ii200 mA (T4/≤ 85°C)
200 mA (T5/≤ 55°C)
200 mA (T6 / ≤ 40 °C)
Max. input voltage Ui30 V
Maximum input power Pi 1.6 W
Insulation voltage to ground 500 V ±10 %
Conformity / approvals
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Surge protection device-TT-ST-M-EX(I)-24DC-2859424
Technical data
Conformity / approvals
ATEX ˽ II 1G Ex ia IIC T4...T6 Ga
˽ II 1D Ex ia IIIC T135°C...T85°C Da
IECEx Ex ia IIC T4...T6 Ga
Ex ia IIIC T135 °C...T85 °C Da
Classifications
eCl@ss
eCl@ss 4.0 27140201
eCl@ss 4.1 27130801
eCl@ss 5.0 27130801
eCl@ss 5.1 27130801
eCl@ss 6.0 27130807
eCl@ss 7.0 27130807
eCl@ss 8.0 27130807
ETIM
ETIM 2.0 EC000943
ETIM 3.0 EC000943
ETIM 4.0 EC000943
ETIM 5.0 EC000943
UNSPSC
UNSPSC 6.01 30212010
UNSPSC 7.0901 39121610
UNSPSC 11 39121610
UNSPSC 12.01 39121610
UNSPSC 13.2 39121620
Approvals
Approvals
Approvals
UL Listed / GL
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Surge protection device-TT-ST-M-EX(I)-24DC-2859424
Application drawing
PLC
4...20 mA
PE
OUT IN IN OUT
4...20 mA
Application drawing
PLC
4...20 mA
PE
IN OUT
4...20 mA
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