https://www.phoenixcontact.com/us/produkte/2817055 Surge protection connector - UFBK-M 2-PE- 24DC-ST - 2817055 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://download.phoenixcontact.com) Protective plug UFBK-M with two conductor protection in floating signal circuits. Nominal voltage: 24 V DC Key commercial data Packing unit 1 Minimum order quantity 1 GTIN Custom tariff number 85363010 Country of origin GERMANY Technical data General Housing material PA Inflammability class according to UL 94 V2 Ambient temperature (operation) -40 C ... 80 C Degree of protection IP20 Arrester can be tested with TT-Tester from software version: From SW rev. 6.00 Arrester can be tested with CHECKMASTER from software version: From SW rev. 1.00 Pitch unit 1 Div. Protective circuit Nominal voltage UN 24 V DC Nominal current IN 2A Operating effective current IC at UC 100 A Nominal discharge surge current In (8/20) s (Core-Core) 10 kA Nominal discharge surge current In (8/20) s (Core-Earth) 10 kA Output voltage limitation at 1 kV/s (Core-Core) static (<1,8 Umax) Output voltage limitation at 1 kV/s (Core-Earth) static 550 V Response time tA (Core-Core) 1 ns Response time tA (Core-Earth) 100 ns 04.10.2012 Page 1 / 3 https://www.phoenixcontact.com/us/produkte/2817055 Surge protection connector - UFBK-M 2-PE- 24DC-ST - 2817055 Technical data Protective circuit Resistance in series < 100 m (Path 1-3) Resistance in series < 100 m (Path 2-4) Connection data Connection method Screw connection Screw thread M3 Stripping length 8 mm Conductor cross section stranded min. 0.2 mm Conductor cross section stranded max. 2.5 mm Conductor cross section solid min. 0.2 mm Conductor cross section solid max. 4 mm Conductor cross section AWG/kcmil min. 24 Conductor cross section AWG/kcmil max 12 Classifications eclass 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 etim ETIM 2.0 EC000943 ETIM 3.0 EC000943 ETIM 4.0 EC000943 unspsc UNSPSC 6.01 30212010 UNSPSC 7.0901 39121610 UNSPSC 11 39121610 UNSPSC 12.01 39121610 UNSPSC 13.2 39121620 Drawings 04.10.2012 Page 2 / 3 https://www.phoenixcontact.com/us/produkte/2817055 Surge protection connector - UFBK-M 2-PE- 24DC-ST - 2817055 Dimensioned drawing Circuit diagram (c) Phoenix Contact 2012 - all rights reserved http://www.phoenixcontact.com 04.10.2012 Page 3 / 3