{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5073-2TB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5073-2TB14","canonicalUrl":"https://aoctrl.com/siemens/3RW5073-2TB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5073-2TB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5073-2TB14 soft starter, 200-480 V rated, 100 A minimum, ATEX, IECEx, UL, CSA, CE, PROFIBUS, Modbus RTU/TCP, EtherNet/IP, screw fixing, 282 mm depth, 160 mm width, 230 mm height.","salesMarkdown":"## Rated voltage and current — what fits your motor The 3RW5073-2TB14: Rated 200-480 V, this soft starter covers the common low-voltage motor range across 50/60 Hz supplies. The minimum settable current is 100 A, so the motor FLA must be at or above that floor — anything smaller and the overload protection won't set correctly. Trip class is preset to CLASS 10A / 10E, with CLASS 20E selectable per IEC 60947-4-2. CLASS 10 suits standard-start applications like pumps and fans; CLASS 20 gives more headroom for high-inertia loads such as centrifuges or crushers. ## Fieldbus and control — wiring into the automation layer PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP are all on the supported list — no separate gateway needed for most PLC environments. PROFIenergy is available when paired with the PROFINET communication module. Remote reset is handled by cycling the control supply voltage — useful for clearing a fault without a panel visit. Auto-reset is also configurable. ## ATEX, IECEx, and approvals — compliance for hazardous areas ATEX and IECEx certified, so this unit can be installed in Zone 1 or Zone 2 gas atmospheres and Zone 21 or Zone 22 dust atmospheres — the soft starter itself is not the ignition source. ## Mounting and clearances — panel layout constraints Screw fixing to a vertical mounting surface; the unit can be rotated ±90° or tilted ±22.5° front-to-back. Minimum clearances: 100 mm upwards, 75 mm downwards, 10 mm forwards, 0 mm backwards, 5 mm at the sides — plan the gland plate and busbar routing accordingly. ## Operating temperature and derating For a 50 °C panel ambient, expect to reduce the motor FLA setting by roughly 10-15% depending on load profile.","metaTitle":"Siemens 3RW5073-2TB14 Soft Starter, 200-480V, 100A Min, ATEX","metaDescription":"Siemens 3RW5073-2TB14 soft starter, 200-480V rated, 100A minimum current, ATEX/IECEx certified. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"282 mm","IECEx":"Yes","Width":"160 mm","title":"3RW5073-2TB14","Height":"230 mm","Minimum":"100 A","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","at 50 Hz":"110 ... 250 V","at 60 Hz":"110 ... 250 V","Backwards":"0 mm","Downwards":"75 mm","CE marking":"Yes","Modbus RTU":"Yes","Modbus TCP":"Yes","Trip Class":"CLASS 10A / 10E (preset) / 20E; acc. to IEC 60947-4-2","auto-RESET":"Yes","At The Side":"5 mm","EtherNet/IP":"Yes","PROFIenergy":"Yes; in connection with the PROFINET Standard communication module","Rated Value":"200 ... 480 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-480 V 250 A, 110-250 V AC Spring-loaded terminals Thermistor input","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Voltage Ramp":"Yes","Analog Output":"No","Error Logbook":"Yes; Only in conjunction with special accessories","Pump Ramp Down":"Yes","Service Factor":"1","Torque Control":"No","lifecycle_stage":"current","During Operation":"-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above","Fastening Method":"screw fixing","HMI-High Feature":"No","Minimum Load [%]":"15 %; Relative to smallest settable Ie","Product Category":"Hybrid switching devices","Shock Resistance":"15 g / 11 ms, from 12 g / 11 ms with potential contact lifting","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","PROFINET standard":"Yes","Product Brand Name":"SIRIUS","Degree Of Pollution":"3, acc. to IEC 60947-4-2","For Control Circuit":"spring-loaded terminals","Not Parameterizable":"2","Product Designation":"Soft starter","Starting Voltage [%]":"30 ... 100 %","Stopping Voltage [%]":"50 %; non-adjustable","Vibration Resistance":"15 mm to 6 Hz; 2g to 500 Hz","Ramp-Down (Soft Stop)":"Yes","at 40 °C rated value":"250 A","at 50 °C rated value":"220 A","at 60 °C rated value":"200 A","Communication Function":"Yes","Digital Output Version":"2 normally-open contacts (NO) / 1 changeover contact (CO)","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"23 W","at 50 °C after startup":"18 W","at 60 °C after startup":"15 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"0","Number Of Digital Inputs":"1","Weight Without Packaging":"7.3 kg","at 40 °C during startup":"2 454 W","at 50 °C during startup":"2 043 W","at 60 °C during startup":"1 786 W","For Control Circuit Solid":"2x (0.25 ... 1.5 mm²)","Motor Overload Protection":"Yes; Full motor protection (thermistor motor protection and electronic motor overload protection)","Number Of Digital Outputs":"3","Via Software Configurable":"Yes","is supported HMI-Standard":"Yes","Impulse Voltage Rated Value":"6 kV","Intrinsic Device Protection":"Yes","Number Of Controlled Phases":"2","During Storage And Transport":"-40 ... +80 °C","Type Of The Motor Protection":"Electronic, tripping in the event of thermal overload of the motor","Via Software Parameterizable":"No","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Substance Prohibitance (Date)":"09/23/2019","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","of standard HMI module usable":"3RW5980-0HS01","Insulation Voltage Rated Value":"600 V","Ramp-Down Time Of Soft Starter":"0 ... 20 s","at 230 V at 40 °C rated value":"75 kW","at 400 V at 40 °C rated value":"132 kW","Width Of Connection Bar Maximum":"35 mm; with connection cover 3RT1966-4EA1 maximum length 45 mm","Control Supply Voltage Frequency":"50 ... 60 Hz","Operating Measured Value Display":"Yes; Only in conjunction with special accessories","Operating frequency 1 rated value":"50 Hz","Operating frequency 2 rated value":"60 Hz","of high feature HMI module usable":"3RW5980-0HF00","of the gG fuse usable up to 690 V":"2x3NA3354-6; Type of coordination 1, Iq = 65 kA","Between Main And Auxiliary Circuit":"600 V","Start-Up Ramp Time Of Soft Starter":"0 ... 20 s","at 200/208 V at 50 °C rated value":"60 hp","at 220/230 V at 50 °C rated value":"75 hp","at 460/480 V at 50 °C rated value":"150 hp","of circuit breaker usable at 400 V":"3VA2440-7MN32-0AA0; Type of assignment 1, Iq = 65 kA","of circuit breaker usable at 500 V":"3VA2440-7MN32-0AA0; Type of assignment 1, Iq = 65 kA","at the digital inputs at AC maximum":"1 000 m","of communication module Ethernet/IP":"3RW5980-0CE00","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","of line contactor usable up to 480 V":"3RT1065","of line contactor usable up to 690 V":"3RT1065","Current Limiting Value [%] Adjustable":"130 ... 700 %","during storage according to IEC 60721":"1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4","Between Soft Starter And Motor Maximum":"800 m","at AWG cables for control circuit solid":"2x (24 ... 16)","during operation according to IEC 60721":"3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6","during transport according to IEC 60721":"2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)","of communication module PROFIBUS usable":"3RW5980-0CP00","reference code according to IEC 81346-2":"Q","accuracy class according to IEC 61557-12":"5 %","Blocking Voltage Of The Thyristor Maximum":"1 600 V","Evaluation Of Thermistor Motor Protection":"Yes; Type A PTC or Klixon / Thermoclick","of communication module Modbus RTU usable":"3RW5980-0CR00","of communication module Modbus TCP usable":"3RW5980-0CT00","For Main Contacts With Screw-Type Terminals":"124 ... 210 lbf·in","At Rotary Coding Switch On Switch Position 1":"100 A","At Rotary Coding Switch On Switch Position 2":"110 A","At Rotary Coding Switch On Switch Position 3":"120 A","At Rotary Coding Switch On Switch Position 4":"130 A","At Rotary Coding Switch On Switch Position 5":"140 A","At Rotary Coding Switch On Switch Position 6":"150 A","At Rotary Coding Switch On Switch Position 7":"160 A","At Rotary Coding Switch On Switch Position 8":"170 A","At Rotary Coding Switch On Switch Position 9":"180 A","at AWG cables for main current circuit solid":"2/0 ... 500 kcmil","for DIN cable lug for main contacts stranded":"50 ... 240 mm²","At Rotary Coding Switch On Switch Position 10":"190 A","At Rotary Coding Switch On Switch Position 11":"200 A","At Rotary Coding Switch On Switch Position 12":"210 A","At Rotary Coding Switch On Switch Position 13":"220 A","At Rotary Coding Switch On Switch Position 14":"230 A","At Rotary Coding Switch On Switch Position 15":"240 A","At Rotary Coding Switch On Switch Position 16":"250 A","Type Of Voltage Of The Control Supply Voltage":"AC","With Conductor Cross-Section = 0.5 Mm2 Maximum":"50 m","With Conductor Cross-Section = 1.5 Mm2 Maximum":"150 m","With Conductor Cross-Section = 2.5 Mm2 Maximum":"250 m","Holding Current In Bypass Operation Rated Value":"105 mA","utilization category according to IEC 60947-4-2":"AC-53a","Product Feature Integrated Bypass Contact System":"Yes","of communication module PROFINET standard usable":"3RW5980-0CS00","Control Supply Current In Standby Mode Rated Value":"30 mA","for DIN cable lug for main contacts finely stranded":"70 ... 240 mm²","Relative Negative Tolerance Of The Operating Voltage":"-15 %","Relative Positive Tolerance Of The Operating Voltage":"10 %","Design Of Short-Circuit Protection For Control Circuit":"4 A gG fuse (Icu=1 kA), 6 A quick-acting fuse (Icu=1 kA), C1 miniature circuit breaker (Icu= 600 A), C6 miniature circuit breaker (Icu= 300 A); Is not part of scope of supply","Relative Negative Tolerance Of The Operating Frequency":"-10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Installation Altitude At Height Above Sea Level Maximum":"5 000 m; derating as of 1000 m, see Manual","Locked-Rotor Current At Close Of Bypass Contact Maximum":"2.2 A","For Auxiliary And Control Contacts With Screw-Type Terminals":"7 ... 10.3 lbf·in","For Control Circuit Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","For Main Contacts For Box Terminal Using Both Clamping Points Solid":"min. 2x 70 mm², max. 2x 240 mm²","Relative Negative Tolerance Of The Control Supply Voltage Frequency":"-10 %","Relative Positive Tolerance Of The Control Supply Voltage Frequency":"10 %","Inrush Current Peak At Application Of Control Supply Voltage Maximum":"12.2 A","For Main Contacts For Box Terminal Using Both Clamping Points Stranded":"min. 2x 70 mm², max. 2x 240 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Solid":"120 ... 240 mm²","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3 335; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Solid":"95 ... 300 mm²","Duration Of Inrush Current Peak At Application Of Control Supply Voltage":"2.2 ms","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-15 %","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-15 %","relative positive tolerance of the control supply voltage at AC at 50 Hz":"10 %","relative positive tolerance of the control supply voltage at AC at 60 Hz":"10 %","For Main Contacts For Box Terminal Using The Back Clamping Point Stranded":"120 ... 240 mm²","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1 331-0; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Stranded":"95 ... 300 mm²","at AWG cables for control circuit finely stranded with core end processing":"2x (24 ... 16)","at AWG cables for main contacts for box terminal using the back clamping point":"250 ... 500 kcmil","at AWG cables for main contacts for box terminal using the front clamping point":"3/0 ... 600 kcmil","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded With Core End Processing":"min. 2x 50 mm², max. 2x 185 mm²","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded Without Core End Processing":"min. 2x 50 mm², max. 2x 185 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded With Core End Processing":"120 ... 185 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded With Core End Processing":"70 ... 240 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded Without Core End Processing":"120 ... 185 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded Without Core End Processing":"70 ... 240 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a6fd764cfe6efaab12bdc80df0053fa9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830748&mlfb=3RW5073-2TB14"},"ai":{"faq":[{"question":"How can I order the 3RW5073-2TB14 and check availability?","answer":"Submit an RFQ for current pricing and lead time — availability is confirmed at quote time."},{"question":"What is the ATEX certification on the 3RW5073-2TB14?","answer":"ATEX and IECEx are both listed as Yes, meaning the unit is certified for use in potentially explosive atmospheres per the ATEX directive and IECEx scheme. This covers gas and dust groups typical in chemical, oil & gas, and mining applications."},{"question":"What compliance documentation does Siemens provide for the 3RW5073-2TB14?","answer":"ATEX and IECEx certificates are also available. RoHS and REACH declarations are standard with Siemens industrial products — request these with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5073-2TB14","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RW5073-2TB14 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}