https://www.phoenixcontact.com/us/products/2859424 Surge protection device - TT-ST-M-EX(I)-24DC - 2859424 Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download) 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 10/21/2014 Page 1 / 6 https://www.phoenixcontact.com/us/products/2859424 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 UN 24 V DC Maximum continuous operating voltage UC 30 V DC Maximum continuous voltage UC (wire-ground) 30 V DC Nominal current IN 200 mA (TA < 40 C) Operating effective current IC at UC 10 A Residual current IPE 2 A Nominal discharge current In (8/20) s (Core-Core) 5 kA Nominal discharge current In (8/20) s (Core-Earth) 5 kA Total surge current (8/20) s 10 kA Total surge current (10/350) s 2 kA Max. discharge current Imax (8/20) s maximum (Core-Earth) 5 kA 5 kA Nominal pulse current Ian (10/1000) s (Core-Core) 100 A Nominal pulse current Ian (10/1000) s (Core-Earth) 100 A Impulse discharge current (10/350)s, peak value limp 1 kA Output voltage limitation at 1 kV/s (Core-Core) spike 40 V Output voltage limitation at 1 kV/s (Core-Earth) spike 1.5 kV Output voltage limitation at 1 kV/s (Core-Core) static 40 V Output voltage limitation at 1 kV/s (Core-Earth) static 1.5 kV Residual voltage at In, (conductor-conductor) 40 V Residual voltage with Ian (10/1000)s (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 10/21/2014 Page 2 / 6 https://www.phoenixcontact.com/us/products/2859424 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 ) typ. 0.4 dB ( 150 kHz / 150 ) 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 20 % (per path) 6.6 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 mm Conductor cross section stranded max. 2.5 mm Conductor cross section solid min. 0.5 mm Conductor cross section solid max. 4 mm 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 Ci 4 nF Maximum inner inductance Li 1 H Max. input current Ii 200 mA (T4/ 85C) 200 mA (T5/ 55C) 200 mA (T6 / 40 C) Max. input voltage Ui 30 V Maximum input power Pi 1.6 W Insulation voltage to ground 500 V 10 % Conformity / approvals 10/21/2014 Page 3 / 6 https://www.phoenixcontact.com/us/products/2859424 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 T135C...T85C 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 10/21/2014 Page 4 / 6 https://www.phoenixcontact.com/us/products/2859424 Surge protection device - TT-ST-M-EX(I)-24DC - 2859424 Approvals Ex Approvals IECEx / ATEX / INMETRO Approvals submitted Approval details UL Listed GL Drawings Dimensioned drawing Circuit diagram 1 100 OUT 71 IN 65,1 3 6,2 2 4 10/21/2014 Page 5 / 6 https://www.phoenixcontact.com/us/products/2859424 Surge protection device - TT-ST-M-EX(I)-24DC - 2859424 Application drawing OUT IN IN OUT PLC PE 4...20 mA 4...20 mA Application drawing IN OUT PLC 4...20 mA 4...20 mA PE Phoenix Contact 2014 (c) - all rights reserved http://www.phoenixcontact.com 10/21/2014 Page 6 / 6