3RT20373XB440LA2

Data sheet 3RT2037-3XB44-0LA2 Traction contactor, AC-3 65 A, 30 kW / 400 V 2 NO + 2 NC 24 V DC, 0.71.25* Us with varistor 3-pole, size S2 Spring-type terminals product brand name SIRIUS product designation Contactor design of the product With extended operating range product type designation 3RT2 General technical data size of contactor S2 product extension ● function module for communication No ● auxiliary switch No power loss [W] for rated value of the current at AC in hot operating state ● per pole power loss [W] for rated value of the current without load current share typical 11.4 W 3.8 W 1W insulation voltage ● of main circuit with degree of pollution 3 rated value 690 V ● of auxiliary circuit with degree of pollution 3 rated value 690 V surge voltage resistance ● of main circuit rated value 6 kV ● of auxiliary circuit rated value 6 kV maximum permissible voltage for safe isolation between coil and main contacts acc. to EN 60947-1 400 V shock resistance at rectangular impulse ● at DC 6.1g / 5 ms, 3.7g / 10 ms shock resistance with sine pulse ● at DC 9.6g / 5 ms, 5.8g / 10 ms mechanical service life (switching cycles) ● of contactor typical 10 000 000 ● of the contactor with added electronically optimized auxiliary switch block typical 5 000 000 ● of the contactor with added auxiliary switch block typical 10 000 000 reference code acc. to IEC 81346-2 Q Substance Prohibitance (Date) 01.10.2014 00:00:00 Ambient conditions installation altitude at height above sea level maximum 2 000 m ● ambient temperature during operation -40 ... +70 °C ● ambient temperature during storage -55 ... +80 °C 3RT20373XB440LA2 Page 1/2 1.21.2021 Subject to change without notice © Copyright Siemens Main circuit number of poles for main current circuit 3 number of NO contacts for main contacts 3 ● operating voltage at AC-3 rated value maximum 690 V operational current ● at AC-1 at 400 V at ambient temperature 40 °C rated value 80 A ● at AC-1 — up to 690 V at ambient temperature 40 °C rated value 80 A — up to 690 V at ambient temperature 60 °C rated value 70 A ● at AC-2 at 400 V rated value 65 A ● at AC-3 — at 400 V rated value 65 A — at 500 V rated value 65 A — at 690 V rated value 47 A ● at AC-4 at 400 V rated value 55 A minimum cross-section in main circuit ● at maximum AC-1 rated value 25 mm² ● at maximum Ith rated value 25 mm² operational current for approx. 200000 operating cycles at AC-4 ● at 400 V rated value 28 A ● at 690 V rated value 22 A operational current ● at 1 current path at DC-1 — at 24 V rated value 55 A — at 110 V rated value 4.5 A — at 220 V rated value 1A — at 440 V rated value 0.4 A — at 600 V rated value 0.25 A ● with 2 current paths in series at DC-1 — at 24 V rated value 55 A — at 110 V rated value 45 A — at 220 V rated value 5A — at 440 V rated value 1A — at 600 V rated value 0.8 A ● with 3 current paths in series at DC-1 — at 24 V rated value 55 A — at 110 V rated value 55 A — at 220 V rated value 45 A — at 440 V rated value 2.9 A — at 600 V rated value 1.4 A operational current ● at 1 current path at DC-3 at DC-5 — at 24 V rated value 35 A — at 110 V rated value 2.5 A — at 220 V rated value 1A — at 440 V rated value 0.1 A — at 600 V rated value 0.06 A ● with 2 current paths in series at DC-3 at DC-5 — at 24 V rated value 55 A — at 110 V rated value 25 A — at 220 V rated value 5A — at 440 V rated value 0.27 A — at 600 V rated value 0.16 A ● with 3 current paths in series at DC-3 at DC-5 — at 24 V rated value 3RT20373XB440LA2 Page 2/3 55 A 1.21.2021 Subject to change without notice © Copyright Siemens — at 110 V rated value 55 A — at 220 V rated value 25 A — at 440 V rated value 0.6 A — at 600 V rated value 0.35 A operating power ● at AC-2 at 400 V rated value 30 kW ● at AC-3 — at 230 V rated value 18.5 kW — at 400 V rated value 30 kW — at 500 V rated value 37 kW — at 690 V rated value 37 kW operating power for approx. 200000 operating cycles at AC-4 ● at 400 V rated value 14.7 kW ● at 690 V rated value 20 kW short-time withstand current in cold operating state up to 40 °C ● limited to 1 s switching at zero current maximum 1 055 A; Use minimum cross-section acc. to AC-1 rated value ● limited to 5 s switching at zero current maximum 730 A; Use minimum cross-section acc. to AC-1 rated value ● limited to 10 s switching at zero current maximum 520 A; Use minimum cross-section acc. to AC-1 rated value ● limited to 30 s switching at zero current maximum 336 A; Use minimum cross-section acc. to AC-1 rated value ● limited to 60 s switching at zero current maximum 272 A; Use minimum cross-section acc. to AC-1 rated value no-load switching frequency ● at DC 1 500 1/h Ratings for railway applications thermal current (Ith) up to 690 V ● up to 40 °C according to IEC 60077 rated value 80 A ● up to 70 °C according to IEC 60077 rated value 60 A Control circuit/ Control type of voltage DC type of voltage of the control supply voltage DC control supply voltage at DC ● rated value 24 V operating range factor control supply voltage rated value of magnet coil at DC ● initial value 0.7 ● full-scale value 1.25 design of the surge suppressor with varistor inrush current peak 3A duration of inrush current peak 50 µs locked-rotor current mean value 1A locked-rotor current peak 2.6 A duration of locked-rotor current 230 ms holding current mean value 40 mA closing power of magnet coil at DC 23 W holding power of magnet coil at DC 1W closing delay ● at DC 45 ... 60 ms opening delay ● at DC 35 ... 55 ms arcing time 10 ... 20 ms control version of the switch operating mechanism Standard A1 - A2 Auxiliary circuit number of NC contacts for auxiliary contacts ● instantaneous contact number of NO contacts for auxiliary contacts ● instantaneous contact operational current at AC-12 maximum 2 2 2 2 10 A operational current at AC-15 3RT20373XB440LA2 Page 3/4 1.21.2021 Subject to change without notice © Copyright Siemens ● at 230 V rated value 6A ● at 400 V rated value 3A ● at 500 V rated value 2A ● at 690 V rated value 1A operational current at DC-12 ● at 24 V rated value 10 A ● at 48 V rated value 6A ● at 60 V rated value 6A ● at 110 V rated value 3A ● at 125 V rated value 2A ● at 220 V rated value 1A ● at 600 V rated value 0.15 A operational current at DC-13 ● at 24 V rated value 6A ● at 48 V rated value 2A ● at 60 V rated value 2A ● at 110 V rated value 1A ● at 125 V rated value 0.9 A ● at 220 V rated value 0.3 A ● at 600 V rated value 0.1 A contact reliability of auxiliary contacts 1 faulty switching per 100 million (17 V, 1 mA) UL/CSA ratings full-load current (FLA) for 3-phase AC motor ● at 480 V rated value 65 A ● at 600 V rated value 52 A yielded mechanical performance [hp] ● for single-phase AC motor — at 110/120 V rated value 5 hp — at 230 V rated value 10 hp ● for 3-phase AC motor — at 200/208 V rated value 20 hp — at 220/230 V rated value 20 hp — at 460/480 V rated value 50 hp — at 575/600 V rated value 50 hp contact rating of auxiliary contacts according to UL A600 / Q600 Short-circuit protection product function short circuit protection No design of the fuse link ● for short-circuit protection of the main circuit — with type of coordination 1 required gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA) — with type of assignment 2 required gG: 125A (690V,100kA), aM: 63A (690V,100kA), BS88: 100A (415V,80kA) ● for short-circuit protection of the auxiliary switch required gG: 10 A (500 V, 1 kA) Installation/ mounting/ dimensions mounting position +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface fastening method screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 ● side-by-side mounting Yes height 114 mm width 55 mm depth 178 mm required spacing ● with side-by-side mounting — forwards 10 mm — upwards 10 mm — downwards 10 mm 3RT20373XB440LA2 Page 4/5 1.21.2021 Subject to change without notice © Copyright Siemens — at the side 0 mm ● for grounded parts — forwards 10 mm — upwards 10 mm — at the side 6 mm — downwards 10 mm ● for live parts — forwards 10 mm — upwards 10 mm — downwards 10 mm — at the side 6 mm Connections/ Terminals type of electrical connection ● for main current circuit screw-type terminals ● for auxiliary and control circuit spring-loaded terminals ● at contactor for auxiliary contacts Spring-type terminals ● of magnet coil Spring-type terminals type of connectable conductor cross-sections ● for main contacts — solid or stranded 2x (1 ... 35 mm²), 1x (1 ... 50 mm²) — finely stranded with core end processing 2x (1 ... 25 mm²), 1x (1 ... 35 mm²) ● at AWG cables for main contacts 2x (18 ... 2), 1x (18 ... 1) type of connectable conductor cross-sections ● for auxiliary contacts — solid or stranded 2x (0.5 ... 2.5 mm²) — finely stranded with core end processing 2x (0.5 ... 1.5 mm²) — finely stranded without core end processing 2x (0.5 ... 2.5 mm²) ● at AWG cables for auxiliary contacts 2x (20 ... 14) ● AWG number as coded connectable conductor cross section for main contacts 18 ... 1 ● AWG number as coded connectable conductor cross section for auxiliary contacts 20 ... 14 Safety related data B10 value with high demand rate acc. to SN 31920 1 000 000 proportion of dangerous failures ● with low demand rate acc. to SN 31920 40 % ● with high demand rate acc. to SN 31920 73 % failure rate [FIT] with low demand rate acc. to SN 31920 100 FIT product function ● mirror contact acc. to IEC 60947-4-1 Yes ● positively driven operation acc. to IEC 60947-5-1 No T1 value for proof test interval or service life acc. to IEC 61508 20 y protection class IP on the front acc. to IEC 60529 IP20 touch protection on the front acc. to IEC 60529 finger-safe, for vertical contact from the front suitability for use safety-related switching OFF Yes Communication/ Protocol product function bus communication No Certificates/ approvals General Product Approval EMC KC Declaration of Conformity 3RT20373XB440LA2 Page 5/6 Test Certificates 1.21.2021 Marine / Shipping Subject to change without notice © Copyright Siemens Miscellaneous Special Test Certificate Type Test Certificates/Test Report Marine / Shipping other Confirmation Railway Type Test Certificates/Test Report Vibration and Shock 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=3RT2037-3XB44-0LA2 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RT2037-3XB44-0LA2 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3RT2037-3XB44-0LA2 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RT2037-3XB44-0LA2&lang=en Characteristic: Tripping characteristics, I²t, Let-through current https://support.industry.siemens.com/cs/ww/en/ps/3RT2037-3XB44-0LA2/char Further characteristics (e.g. electrical endurance, switching frequency) http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RT2037-3XB44-0LA2&objecttype=14&gridview=view1 3RT20373XB440LA2 Page 6/7 1.21.2021 Subject to change without notice © Copyright Siemens 3RT20373XB440LA2 Page 7/8 1.21.2021 Subject to change without notice © Copyright Siemens last modified: 3RT20373XB440LA2 Page 8/8 12/15/2020 1.21.2021 Subject to change without notice © Copyright Siemens