{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5245-2TC05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5245-2TC05","canonicalUrl":"https://aoctrl.com/siemens/3RW5245-2TC05","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5245-2TC05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5245-2TC05 soft starter, 135 A minimum operating current, 200-600 V AC, Trip Class 10A/10E/20E, screw fixing, 203 x 210 x 393 mm.","salesMarkdown":"The 3RW5245-2TC05 is a SIRIUS soft starter rated for a minimum operating current of 135 A at a supply voltage of 200 to 600 V AC. That 135 A floor is the smallest settable Ie — the part cannot be dialed down below that, so it fits motor loads sized from 135 A upward. Trip Class is selectable: default CLASS 10A, with 10E and 20E options per IEC 60947-4-2. CLASS 10A trips within 10 seconds at 7.2× rated current, matching standard induction-motor starts; 20E gives a longer ramp window for high-inertia loads like centrifuges or fans. Fieldbus options are extensive: PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET with PROFIenergy support. That means the starter integrates into nearly any control network without a separate gateway — a single part covers both the power switching and the communication layer. Mounting is screw-fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back. Clearances required: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, 0 mm backward. That 100 mm upward gap is the main constraint in a shallow cabinet — plan the gland plate or busbar clearance accordingly. ## Integration notes The starter supports soft torque and pump ramp down — both useful for reducing mechanical stress on the load and avoiding pressure surges in pumping applications. Remote reset is handled by cycling the 24 V control supply off and on, which simplifies remote restart without a dedicated reset signal. Shock resistance is rated at 15 g for 11 ms, with potential contact lifting above 12 g. That is robust for most industrial environments but worth noting if the starter is mounted on a vibrating machine base — derating the shock spec may be needed. An error logbook is available only with special accessories — not built-in. If detailed fault logging is required, factor in the accessory cost and mounting space at the design stage.","metaTitle":"Siemens 3RW5245-2TC05 SIRIUS Soft Starter, 135 A, 200-600 V","metaDescription":"Siemens 3RW5245-2TC05 SIRIUS soft starter rated 135 A, 200-600 V AC. Trip Class 10A/10E/20E. Supports PROFIBUS, Modbus RTU/TCP, EtherNet/IP, PROFINET","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5245-2TC05","Height":"393 mm","Minimum":"135 A","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","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 ... 600 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-600 V 315 A, 24 V AC/DC spring-type terminals Thermistor input","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","at DC rated value":"24 V","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","at 50 Hz rated value":"24 V","at 60 Hz rated value":"24 V","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 500 V at 40 °C rated value":"200 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","at 575/600 V at 50 °C rated value":"250 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 ... 600 V","at the digital inputs at AC maximum":"100 m","at the digital inputs at DC maximum":"1 000 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/DC","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":"470 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":"160 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":"7.6 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 at DC":"-20 %","relative positive tolerance of the control supply voltage at DC":"20 %","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":"3.3 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":"12.1 ms","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-20 %","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-20 %","relative positive tolerance of the control supply voltage at AC at 50 Hz":"20 %","relative positive tolerance of the control supply voltage at AC at 60 Hz":"20 %","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0cf2a7628bb26fdb44f34604ca1a1380.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830669&mlfb=3RW5245-2TC05"},"ai":{"faq":[{"question":"Is 3RW5245-2TC05 compatible with EtherNet/IP?","answer":"Yes, the 3RW5245-2TC05 supports EtherNet/IP natively, alongside PROFIBUS, Modbus RTU, Modbus TCP, and PROFINET with PROFIenergy. No separate communication module is needed for EtherNet/IP integration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5245-2TC05","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/3RW5245-2TC05 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}