USST 4-MT

https://www.phoenixcontact.com/us/products/3070300 Knife disconnect terminal block - USST 4-MT - 3070300 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) Knife disconnect terminal block, Connection type: Screw connection with spring support, Cross section: 0.2 mm² - 6 mm², AWG: 24 - 10, Nominal current: 20 A, Nominal voltage: 500 V, Length: 63.4 mm, Width: 6.2 mm, Color: gray, Assembly: NS 35/7,5, NS 35/15, NS 32 Key Commercial Data Packing unit 1 pc Weight per Piece (excluding packing) 15.2 g Custom tariff number 85369010 Country of origin Poland Technical data General Number of levels 1 Number of connections 2 Nominal cross section 4 mm² Color gray Insulating material PA Flammability rating according to UL 94 V0 Rated surge voltage 6 kV Degree of pollution 3 Overvoltage category III Insulating material group I Connection in acc. with standard IEC 60947-7-1 Nominal current IN 20 A Maximum load current 20 A (with 6 mm² conductor cross section) Nominal voltage UN 500 V Open side panel Yes Shock protection test specification DIN EN 50274 (VDE 0660-514):2002-11 03/14/2016   Page 1 / 5 https://www.phoenixcontact.com/us/products/3070300 Knife disconnect terminal block - USST 4-MT - 3070300 Technical data General Back of the hand protection guaranteed Finger protection guaranteed Result of surge voltage test Test passed Surge voltage test setpoint 7.3 kV Result of power-frequency withstand voltage test Test passed Power frequency withstand voltage setpoint 1.89 kV Result of the test for mechanical stability of terminal points (5 x conductor connection) Test passed Result of bending test Test passed Bending test rotation speed 10 rpm Bending test turns 135 Bending test conductor cross section/weight 0.2 mm² / 0.2 kg 4 mm² / 0.9 kg 2 6 mm / 1.4 kg 1.5 mm² / 0.4 kg Tensile test result Test passed Conductor cross section tensile test 0.2 mm² Tractive force setpoint 10 N Conductor cross section tensile test 4 mm² Tractive force setpoint 60 N Conductor cross section tensile test 6 mm² Tractive force setpoint 80 N Conductor cross section tensile test 1.5 mm² Tractive force setpoint 40 N Result of tight fit on support Test passed Setpoint 1N Result of voltage-drop test Test passed Requirements, voltage drop ≤ 6,4 mV Temperature-rise test Test passed Short circuit stability result Test passed Conductor cross section short circuit testing 2.5 mm² Short-time current 0.3 kA Result of thermal test Test passed Proof of thermal characteristics (needle flame) effective duration 30 s Oscillation, broadband noise test result Test passed Test specification, oscillation, broadband noise DIN EN 50155 (VDE 0115-200):2008-03 Test spectrum Service life test category 1, class B, body mounted 03/14/2016   Page 2 / 5 https://www.phoenixcontact.com/us/products/3070300 Knife disconnect terminal block - USST 4-MT - 3070300 Technical data General Test frequency f1 = 5 Hz to f2 = 150 Hz ASD level 1.857 (m/s ) /Hz Acceleration 0.8g Test duration per axis 5h Test directions X-, Y- and Z-axis Shock test result Test passed Test specification, shock test DIN EN 50155 (VDE 0115-200):2008-03 Shock form Half-sine Acceleration 5g Shock duration 30 ms Number of shocks per direction 3 Test directions X-, Y- and Z-axis (pos. and neg.) Relative insulation material temperature index (Elec., UL 746 B) 130 °C 2 2 Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21)) 125 °C Static insulating material application in cold -60 °C Dimensions Length 63.4 mm Width 6.2 mm Height NS 35/7,5 57.3 mm Height NS 35/15 64.8 mm Height NS 32 62.3 mm Connection data Conductor cross section solid min. 0.2 mm² Conductor cross section solid max. 6 mm² Conductor cross section flexible min. 0.2 mm² Conductor cross section flexible max. 4 mm² Conductor cross section AWG min. 24 Conductor cross section AWG max. 10 Conductor cross section flexible, with ferrule without plastic sleeve min. 0.25 mm² Conductor cross section flexible, with ferrule without plastic sleeve max. 4 mm² Conductor cross section flexible, with ferrule with plastic sleeve min. 0.25 mm² Conductor cross section flexible, with ferrule with plastic sleeve max. 2.5 mm² 2 conductors with same cross section, solid min. 0.2 mm² 2 conductors with same cross section, solid max. 1.5 mm² 2 conductors with same cross section, stranded min. 0.2 mm² 2 conductors with same cross section, stranded max. 1.5 mm² 03/14/2016   Page 3 / 5 https://www.phoenixcontact.com/us/products/3070300 Knife disconnect terminal block - USST 4-MT - 3070300 Technical data Connection data 2 conductors with same cross section, stranded, ferrules without plastic sleeve, min. 0.25 mm² 2 conductors with same cross section, stranded, ferrules without plastic sleeve, max. 1.5 mm² 2 conductors with same cross section, stranded, TWIN ferrules with plastic 0.5 mm² sleeve, min. 2 conductors with same cross section, stranded, TWIN ferrules with plastic 2.5 mm² sleeve, max. Connection method Screw connection with spring support Stripping length 10 mm Internal cylindrical gage A4 Screw thread M3 Tightening torque, min 0.6 Nm Tightening torque max 0.8 Nm Standards and Regulations Connection in acc. with standard IEC 60947-7-1 Flammability rating according to UL 94 V0 Classifications eCl@ss eCl@ss 4.0 27141118 eCl@ss 4.1 27141118 eCl@ss 5.0 27141118 eCl@ss 5.1 27141120 eCl@ss 6.0 27141120 eCl@ss 7.0 27141120 eCl@ss 8.0 27141126 ETIM ETIM 3.0 EC000897 ETIM 4.0 EC000897 ETIM 5.0 EC000902 UNSPSC UNSPSC 6.01 30211811 UNSPSC 7.0901 39121410 UNSPSC 11 39121410 UNSPSC 12.01 39121410 03/14/2016   Page 4 / 5 https://www.phoenixcontact.com/us/products/3070300 Knife disconnect terminal block - USST 4-MT - 3070300 Classifications UNSPSC UNSPSC 13.2 39121410 Approvals Approvals Approvals EAC Ex Approvals Approvals submitted Approval details EAC  Drawings Circuit diagram Phoenix Contact 2016 © - all rights reserved http://www.phoenixcontact.com 03/14/2016   Page 5 / 5