3RH1921-1KA11

Data sheet 3RH1921-1KA11 second lateral Auxiliary switch, 1 NO, 1 NC, screw terminal, for contactors 3RT1 General technical data product brand name SIRIUS suitability for use Contactor relay and power contactor protection class IP on the front IP20 ambient temperature ● during storage -55 ... +80 °C ● during operation -25 ... +60 °C mechanical service life (switching cycles) typical 10 000 000 electrical endurance (switching cycles) at AC-15 at 230 V typical 200 000 contact reliability of auxiliary contacts 1 faulty switching per 100 million (17 V, 1 mA) insulation voltage with degree of pollution 3 at AC rated value 500 V surge voltage resistance rated value 6 kV Auxiliary circuit number of NC contacts for auxiliary contacts ● instantaneous contact 1 number of NO contacts for auxiliary contacts ● instantaneous contact 1 operational current of auxiliary contacts at AC-12 ● at 24 V 10 A ● at 230 V 10 A ● maximum 10 A operational current ● of auxiliary contacts — at AC-14 — at 125 V 6A — at 250 V 6A — at AC-15 — at 24 V 6A — at 230 V 6A — at 400 V 3A operational current ● of auxiliary contacts at DC-12 — at 24 V 10 A — at 110 V 3A — at 220 V 1A ● with 2 current paths in series at DC-12 — at 24 V rated value 10 A — at 60 V rated value 10 A 3RH19211KA11 Page 1/3 7/5/2022 Subject to change without notice © Copyright Siemens — at 110 V rated value 4A — at 220 V rated value 2A — at 440 V rated value 1.3 A ● with 3 current paths in series at DC-12 — at 24 V rated value 10 A — at 60 V rated value 10 A — at 110 V rated value 10 A — at 220 V rated value 3.6 A — at 440 V rated value 2.5 A operational current ● of auxiliary contacts at DC-13 — at 24 V 6A — at 60 V 2A — at 110 V 1A — at 220 V 0.3 A ● with 2 current paths in series at DC-13 — at 24 V rated value 10 A — at 60 V rated value 3.5 A — at 110 V rated value 1.3 A — at 220 V rated value 0.9 A — at 440 V rated value 0.2 A ● with 3 current paths in series at DC-13 — at 24 V rated value 10 A — at 60 V rated value 4.7 A — at 110 V rated value 3A — at 220 V rated value 1.2 A — at 440 V rated value 0.5 A Installation/ mounting/ dimensions fastening method snap-on mounting width 10 mm height 80 mm depth 71 mm Connections/ Terminals type of electrical connection for auxiliary and control circuit screw-type terminals type of connectable conductor cross-sections ● for auxiliary contacts — finely stranded — with core end processing 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) ● at AWG cables for auxiliary contacts 2x (20 ... 16), 2x (18 ... 14) Safety related data product function mirror contact according to IEC 60947-4-1 ● note Yes with 3RT1 product function positively driven operation according to IEC 60947-5-1 No Certificates/ approvals Functional Safety/Safety of Machinery General Product Approval Confirmation Declaration of Conformity 3RH19211KA11 Page 2/3 KC Test Certificates 7/5/2022 Type Examination Certificate Marine / Shipping Subject to change without notice © Copyright Siemens Type Test Certificates/Test Report Special Test Certificate Marine / Shipping other Railway Confirmation Special Test Certificate 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=3RH1921-1KA11 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RH1921-1KA11 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3RH1921-1KA11 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RH1921-1KA11&lang=en last modified: 3RH19211KA11 Page 3/3 1/18/2021 7/5/2022 Subject to change without notice © Copyright Siemens