https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 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) Modular terminal block with surge voltage fine protection between clamping connector and DIN rail, nominal voltage: 48 V DC, for mounting on NS 32 or NS 35/7.5, terminal width: 6.2 mm, terminal height: 47 mm The illustration shows version TTUK5- 24 DC Product Features Can be used in the signal circuits of electronic controllers Key commercial data Packing unit 1 pc GTIN Weight per Piece (excluding packing) 11.14 GRM Custom tariff number 85363030 Country of origin Greece Technical data Dimensions Height 47 mm Width 6.2 mm Length 42.5 mm Ambient conditions Ambient temperature (operation) -40 C ... 85 C Degree of protection IP20 General Housing material PA Inflammability class according to UL 94 V2 09/10/2014 Page 1 / 6 https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 Technical data General Color black Mounting type DIN rail/G-profile rail Type Single-level terminal block Number of positions 1 Direction of action Line-Earth Ground Protective circuit IEC test classification C3 VDE requirement class C3 Nominal voltage UN 48 V DC Maximum continuous operating voltage UC 53 V DC 37 V AC Maximum continuous voltage UC (wire-ground) 53 V DC 37 V AC Nominal current IN 32 A (50 C) Residual current IPE 5 A Nominal discharge current In (8/20) s (Core-Earth) 90 A Total surge current (8/20) s 90 A Max. discharge current Imax (8/20) s maximum (Core-Earth) 90 A Nominal pulse current Ian (10/1000) s (Core-Earth) 17.7 A Output voltage limitation at 1 kV/s (Core-Earth) spike 80 V Output voltage limitation at 1 kV/s (Core-Earth) static 80 V Residual voltage at In, (conductor-ground) 111 V Response time tA (Core-Earth) 1 ns Cut-off frequency fg (3 dB), asym. (PE) in 150 Ohm system typ. 3.8 MHz Capacity (Core-Earth) 0.85 nF Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth) C3 - 10 A Connection data Connection method Screw connection Connection type IN Screw terminal blocks Connection type OUT Screw terminal blocks Screw thread M3 Tightening torque 0.5 Nm Stripping length 8 mm Conductor cross section stranded min. 0.2 mm Conductor cross section stranded max. 4 mm Conductor cross section solid min. 0.2 mm 09/10/2014 Page 2 / 6 https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 Technical data Connection data 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 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 CSA / UL Recognized / cUL Recognized / GOST / GOST / cULus Recognized 09/10/2014 Page 3 / 6 https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 Approvals Ex Approvals Approvals submitted Approval details CSA mm/AWG/kcmil 28-10 Nominal current IN 34 A Nominal voltage UN 48 V UL Recognized mm/AWG/kcmil 26-10 Nominal current IN 30 A Nominal voltage UN 48 V cUL Recognized mm/AWG/kcmil 26-10 Nominal current IN 30 A Nominal voltage UN 48 V GOST GOST 09/10/2014 Page 4 / 6 https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 Approvals cULus Recognized Drawings Circuit diagram 09/10/2014 Page 5 / 6 https://www.phoenixcontact.com/us/products/2794709 Surge protection device - TT-UK5/ 48DC - 2794709 Schematic diagram Phoenix Contact 2014 (c) - all rights reserved http://www.phoenixcontact.com 09/10/2014 Page 6 / 6