3RU21261HB0

Data sheet 3RU2126-1HB0 Overload relay 5.5...8.0 A Thermal For motor protection Size S0, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw ManualAutomatic-Reset product brand name SIRIUS product designation thermal overload relay product type designation 3RU2 General technical data size of overload relay S0 size of contactor can be combined company-specific S0 power loss [W] for rated value of the current at AC in hot operating state 6.6 W ● per pole 2.2 W insulation voltage with degree of pollution 3 at AC rated value 690 V surge voltage resistance rated value 6 kV maximum permissible voltage for safe isolation in networks with grounded star point ● between auxiliary and auxiliary circuit 440 V ● between auxiliary and auxiliary circuit 440 V ● between main and auxiliary circuit 440 V ● between main and auxiliary circuit 440 V shock resistance according to IEC 60068-2-27 8g / 11 ms 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 98 ATEX G 001 reference code according to IEC 81346-2 F Substance Prohibitance (Date) 10/01/2009 Ambient conditions installation altitude at height above sea level maximum 2 000 m ambient temperature ● during operation -40 ... +70 °C ● during storage -55 ... +80 °C ● during transport -55 ... +80 °C temperature compensation -40 ... +60 °C relative humidity during operation 10 ... 95 % Main circuit number of poles for main current circuit 3 adjustable current response value current of the current-dependent overload release 5.5 ... 8 A operating voltage ● rated value 690 V ● at AC-3e rated value maximum 690 V operating frequency rated value 3RU21261HB0 Page 1/4 50 ... 60 Hz 7/8/2022 Subject to change without notice © Copyright Siemens operational current rated value 8A operational current at AC-3e at 400 V rated value 8A operating power ● at AC-3 — at 400 V rated value 3 kW — at 500 V rated value 4 kW — at 690 V rated value 5.5 kW ● at AC-3e — at 400 V rated value 3 kW — at 500 V rated value 4 kW — at 690 V rated value 5.5 kW Auxiliary circuit design of the auxiliary switch integrated number of NC contacts for auxiliary contacts 1 ● note number of NO contacts for auxiliary contacts ● note number of CO contacts for auxiliary contacts for contactor disconnection 1 for message "Tripped" 0 operational current of auxiliary contacts at AC-15 ● at 24 V 3A ● at 110 V 3A ● at 120 V 3A ● at 125 V 3A ● at 230 V 2A ● at 400 V 1A operational current of auxiliary contacts at DC-13 ● at 24 V 2A ● at 60 V 0.3 A ● at 110 V 0.22 A ● at 125 V 0.22 A ● at 220 V 0.11 A contact rating of auxiliary contacts according to UL B600 / R300 Protective and monitoring functions trip class CLASS 10 design of the overload release thermal UL/CSA ratings full-load current (FLA) for 3-phase AC motor ● at 480 V rated value 8A ● at 600 V rated value 8A Short-circuit protection design of the fuse link ● for short-circuit protection of the auxiliary switch required fuse gG: 6 A, quick: 10 A Installation/ mounting/ dimensions mounting position any fastening method Contactor mounting height 85 mm width 45 mm depth 85 mm Connections/ Terminals product component removable terminal for auxiliary and control circuit No type of electrical connection ● for main current circuit screw-type terminals ● for auxiliary and control circuit screw-type terminals arrangement of electrical connectors for main current circuit Top and bottom type of connectable conductor cross-sections ● for main contacts — solid or stranded 3RU21261HB0 Page 2/4 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²) 7/8/2022 Subject to change without notice © Copyright Siemens — finely stranded with core end processing ● at AWG cables for main contacts 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² 2x (16 ... 12), 2x (14 ... 8) type of connectable conductor cross-sections ● for auxiliary contacts — solid or stranded 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) — 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) tightening torque ● for main contacts with screw-type terminals 2 ... 2.5 N·m ● for auxiliary contacts with screw-type terminals 0.8 ... 1.2 N·m design of screwdriver shaft Diameter 5 ... 6 mm size of the screwdriver tip Pozidriv PZ 2 design of the thread of the connection screw ● for main contacts M4 ● of the auxiliary and control contacts M3 Safety related data failure rate [FIT] with low demand rate according to SN 31920 50 FIT MTTF with high demand rate 2 280 y T1 value for proof test interval or service life according to IEC 61508 20 y protection class IP on the front according to IEC 60529 IP20 touch protection on the front according to IEC 60529 finger-safe, for vertical contact from the front Display display version for switching status Slide switch Certificates/ approvals For use in hazardous locations General Product Approval Confirmation For use in hazardous locations Declaration of Conformity Test Certificates Special Test Certificate Marine / Shipping Type Test Certificates/Test Report Marine / Shipping other Confirmation 3RU21261HB0 Page 3/4 Railway Vibration and Shock 7/8/2022 Subject to change without notice © Copyright Siemens 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=3RU2126-1HB0 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RU2126-1HB0 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3RU2126-1HB0 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RU2126-1HB0&lang=en Characteristic: Tripping characteristics, I²t, Let-through current https://support.industry.siemens.com/cs/ww/en/ps/3RU2126-1HB0/char Further characteristics (e.g. electrical endurance, switching frequency) http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RU2126-1HB0&objecttype=14&gridview=view1 last modified: 3/8/2022 3RU21261HB0 Page 4/4 7/8/2022 Subject to change without notice © Copyright Siemens