3RA21204CD270BB4

Data sheet 3RA2120-4CD27-0BB4 Load feeder fuseless, Direct-on-line starting 400 V AC, Size S0 16...22 A 24 V DC screw terminal for 60 mm busbar systems (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO+1 NC (contactor) product brand name SIRIUS product designation Direct (on-line) starter design of the product for 60 mm busbars product type designation 3RA21 manufacturer's article number ● of the supplied contactor 3RT2027-1BB40 ● of the supplied circuit-breakers 3RV2021-4CA10 ● of the supplied busbar adapter 8US1251-5NT10 ● of the supplied link module 3RA2921-1BA00 General technical data size of the circuit-breaker S0 size of load feeder S0 insulation voltage with degree of pollution 3 at AC rated value 690 V surge voltage resistance rated value 6 kV shock resistance acc. to IEC 60068-2-27 6g / 11 ms mechanical service life (switching cycles) of contactor typical 10 000 000 type of assignment 2 type of protection according to ATEX directive 2014/34/EU Ex II (2) GD certificate of suitability according to ATEX directive 2014/34/EU DMT 02 ATEX F 001 Substance Prohibitance (Date) 01.10.2009 00:00:00 Ambient conditions ● ambient temperature during operation -20 ... +60 °C ● ambient temperature during storage -50 ... +80 °C ● ambient temperature during transport -50 ... +80 °C temperature compensation -20 ... +60 °C relative humidity during operation 10 ... 95 % Main circuit number of poles for main current circuit 3 design of the switching contact electromechanical adjustable current response value current of the current-dependent overload release 16 ... 22 A ● operating voltage rated value 690 V ● operating voltage at AC-3 rated value maximum 690 V operating frequency rated value 3RA21204CD270BB4 Page 1/2 50 ... 60 Hz 1.21.2021 Subject to change without notice © Copyright Siemens operational current at AC-3 at 400 V rated value 22 A operating power at AC-3 ● at 400 V rated value 11 000 W Control circuit/ Control type of voltage of the control supply voltage DC control supply voltage at DC ● rated value holding power of magnet coil at DC 24 V 5.9 W Auxiliary circuit product extension auxiliary switch Yes Protective and monitoring functions trip class CLASS 10 design of the overload release thermal (bimetallic) Short-circuit protection product function short circuit protection Yes design of the short-circuit trip magnetic conditional short-circuit current (Iq) ● at 400 V acc. to IEC 60947-4-1 rated value 150 000 A Installation/ mounting/ dimensions mounting position vertical fastening method for snapping onto 60 mm busbar systems height 260 mm width 45 mm depth 165 mm required spacing ● for grounded parts — forwards 20 mm — backwards 0 mm — upwards 50 mm — at the side 20 mm — downwards 10 mm ● for live parts — forwards 20 mm — backwards 0 mm — upwards 50 mm — downwards 10 mm — at the side 20 mm Connections/ Terminals type of electrical connection ● for main current circuit screw-type terminals type of connectable conductor cross-sections ● for main contacts — stranded 1 ... 10 mm², 2x (2.5 ... 6 mm²) ● at AWG cables for main contacts 2x (16 ... 12), 2x (14 ... 8) ● connectable conductor cross-section for main contacts finely stranded with core end processing 1 ... 6 mm² Safety related data B10 value with high demand rate acc. to SN 31920 1 000 000 proportion of dangerous failures ● with high demand rate acc. to SN 31920 touch protection on the front acc. to IEC 60529 73 % finger-safe, for vertical contact from the front Certificates/ approvals General Product Approval 3RA21204CD270BB4 Page 2/3 For use in hazardous locations 1.21.2021 Declaration of Conformity Subject to change without notice © Copyright Siemens Miscellaneous Test Certificates Type Test Certificates/Test Report Marine / Shipping Marine / Shipping Special Test Certificate other Confirmation Railway Vibration and Shock Further information Information- and Downloadcenter (Catalogs, Brochures,…) https://www.siemens.com/ic10 Industry Mall (Online ordering system) https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RA2120-4CD27-0BB4 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RA2120-4CD27-0BB4 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3RA2120-4CD27-0BB4 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RA2120-4CD27-0BB4&lang=en Characteristic: Tripping characteristics, I²t, Let-through current https://support.industry.siemens.com/cs/ww/en/ps/3RA2120-4CD27-0BB4/char Further characteristics (e.g. electrical endurance, switching frequency) http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RA2120-4CD27-0BB4&objecttype=14&gridview=view1 3RA21204CD270BB4 Page 3/4 1.21.2021 Subject to change without notice © Copyright Siemens 3RA21204CD270BB4 Page 4/5 1.21.2021 Subject to change without notice © Copyright Siemens 3RA21204CD270BB4 Page 5/6 1.21.2021 Subject to change without notice © Copyright Siemens last modified: 3RA21204CD270BB4 Page 6/6 12/15/2020 1.21.2021 Subject to change without notice © Copyright Siemens