{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5245-2TC14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5245-2TC14","canonicalUrl":"https://aoctrl.com/siemens/3RW5245-2TC14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5245-2TC14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5245-2TC14 hybrid soft starter, 135 A minimum, 200-480 VAC, Trip Class 10A, screw fixing, 393 x 210 x 203 mm.","salesMarkdown":"The Siemens 3RW5245-2TC14 is a SIRIUS-brand hybrid soft starter rated for a minimum operating current of 135 A across a supply range of 200 to 480 VAC. Its default Trip Class 10A per IEC 60947-4-2 means it will disconnect a locked-rotor motor within 10 seconds at 7.2x rated current — fast enough to protect standard squirrel-cage induction motors on pump, fan, or conveyor drives without nuisance tripping on normal start-up. The unit supports Soft Torque and Pump Ramp Down profiles, which reduce mechanical shock on the load train during start and stop — useful on centrifugal pumps where water hammer is a concern. ## Fieldbus and communication options This soft starter ships with onboard PROFIBUS DP and Modbus RTU, plus optional support for Modbus TCP, EtherNet/IP, and PROFINET (the latter with PROFIenergy profile when paired with the standard communication module). That means it can drop into most existing control architectures without a separate gateway — a real time-saver when the line uses mixed protocols and the integrator wants one part number for the panel. Screw-fixing mount, 393 mm high by 210 mm wide by 203 mm deep. The mounting surface must be vertical; the unit can be rotated ±90° or tilted ±22.5° front-to-back. Clearance requirements: 100 mm above, 75 mm below, 10 mm front, 5 mm side, 0 mm rear — plan the enclosure depth accordingly. Shock-rated to 15 g / 11 ms, which covers most industrial floor vibration.","metaTitle":"Siemens 3RW5245-2TC14 SIRIUS Soft Starter, 135 A, 200-480 V","metaDescription":"Siemens 3RW5245-2TC14 SIRIUS soft starter, rated 135 A minimum, 200-480 VAC. Trip Class 10A default. Supports PROFIBUS, Modbus TCP, EtherNet/IP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","Height":"393 mm","Minimum":"135 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 (default) / 10E / 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","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Analog Output":"No","Error Logbook":"Yes; Only in conjunction with special accessories","Pump Ramp Down":"Yes","Service Factor":"1","Torque Control":"No","Firmware Update":"Yes","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","Inside-Delta Circuit":"Yes","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":"546 A","at 50 °C rated value":"483 A","at 60 °C rated value":"442 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":"107 W","at 50 °C after startup":"96 W","at 60 °C after startup":"89 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":"9.9 kg","at 40 °C during startup":"5 350 W","at 50 °C during startup":"4 471 W","at 60 °C during startup":"3 934 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":"3","During Storage And Transport":"-40 ... +80 °C","Via Software Parameterizable":"No","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Electromagnetic Compatibility":"in accordance with IEC 60947-4-2","Substance Prohibitance (Date)":"02/15/2018","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","of standard HMI module usable":"3RW5980-0HS00","Insulation Voltage Rated Value":"600 V","at 230 V at 40 °C rated value":"90 kW","at 400 V at 40 °C rated value":"160 kW","At Inside-Delta Circuit Minimum":"234 A","Width Of Connection Bar Maximum":"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":"2x3NA3365-6; 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":"75 hp","at 220/230 V at 50 °C rated value":"100 hp","at 460/480 V at 50 °C rated value":"200 hp","of circuit breaker usable at 400 V":"3VA2440-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2440-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","At Inside-Delta Circuit Rated Value":"200 ... 480 V","at the digital inputs at AC maximum":"100 m","of communication module Ethernet/IP":"3RW5980-0CE00","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","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","Removable Terminal For Control Circuit":"Yes","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","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":"135 A","At Rotary Coding Switch On Switch Position 2":"147 A","At Rotary Coding Switch On Switch Position 3":"159 A","At Rotary Coding Switch On Switch Position 4":"171 A","At Rotary Coding Switch On Switch Position 5":"183 A","At Rotary Coding Switch On Switch Position 6":"195 A","At Rotary Coding Switch On Switch Position 7":"207 A","At Rotary Coding Switch On Switch Position 8":"219 A","At Rotary Coding Switch On Switch Position 9":"231 A","for DIN cable lug for main contacts stranded":"2x (50 ... 240 mm²)","At Rotary Coding Switch On Switch Position 10":"243 A","At Rotary Coding Switch On Switch Position 11":"255 A","At Rotary Coding Switch On Switch Position 12":"267 A","At Rotary Coding Switch On Switch Position 13":"279 A","At Rotary Coding Switch On Switch Position 14":"291 A","At Rotary Coding Switch On Switch Position 15":"303 A","At Rotary Coding Switch On Switch Position 16":"315 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":"100 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":"2x (70 ... 240 mm²)","Relative Negative Tolerance Of The Operating Voltage":"-15 %","Relative Positive Tolerance Of The Operating Voltage":"10 %","contact rating of auxiliary contacts according to UL":"R300-B300","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 catalog","Locked-Rotor Current At Close Of Bypass Contact Maximum":"2.2 A","of the gG fuse usable at inside-delta circuit up to 500 V":"2x3NA3365-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2580-6HN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2580-6HN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","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)","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 Inside-Delta Circuit At Rotary Coding Switch On Switch Position 1":"234 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 2":"255 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 3":"275 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 4":"296 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 5":"317 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 6":"338 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 7":"359 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 8":"379 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 9":"400 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 10":"421 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 11":"442 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 12":"462 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 13":"483 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 14":"504 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 15":"525 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 16":"546 A","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3336; Type of coordination 2, Iq = 65 kA","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 %","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1334-2; Type of coordination 2, Iq = 65 kA","at AWG cables for control circuit finely stranded with core end processing":"2x (24 ... 16)","Relative Negative Tolerance Of The Operating Voltage At Inside-Delta Circuit":"-15 %","Relative Positive Tolerance Of The Operating Voltage At Inside-Delta Circuit":"10 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830670&mlfb=3RW5245-2TC14","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RW5245-2TC14/alternatives.json"},"ai":{"faq":[{"question":"Is the 3RW5245-2TC14 compatible with 480V supply?","answer":"Yes. The rated supply voltage range is 200 to 480 VAC at both 50 Hz and 60 Hz, so it handles 480 V directly without a transformer."},{"question":"What is the trip class of 3RW5245-2TC14?","answer":"Default Trip Class is 10A per IEC 60947-4-2, with selectable alternatives of 10E and 20E. Class 10A means the overload relay will trip within 10 seconds at 7.2x the current setting — standard for most motor protection applications."},{"question":"Does Siemens 3RW5245-2TC14 support Modbus TCP?","answer":"Yes, Modbus TCP is supported alongside Modbus RTU, PROFIBUS DP, EtherNet/IP, and PROFINET (with PROFIenergy)."},{"question":"Where can I buy 3RW5245-2TC14?","answer":"This part is sourced to order against an RFQ through independent industrial distribution. Submit a request for current pricing and availability — lead time and stock position are confirmed at quote time."},{"question":"What is the difference between 3RW5245-2TC14 and 3RW5246-2TC14?","answer":"The 3RW5245-2TC14 is rated for a minimum operating current of 135 A, while the 3RW5246-2TC14 is a higher-current variant in the same SIRIUS family. The exact current rating of the 5246 is not listed here; consult the respective datasheet for the specific current threshold difference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5245-2TC14","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/3RW5245-2TC14 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}