{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5245-6TC05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5245-6TC05","canonicalUrl":"https://aoctrl.com/siemens/3RW5245-6TC05","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5245-6TC05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5245-6TC05 soft starter, 135 A minimum operating current, 200-600 V rated voltage, Class 10A/10E/20E trip class, PROFIBUS/Modbus RTU/Modbus TCP/EtherNet/IP/PROFINET, screw fixing, 393x210x203 mm.","salesMarkdown":"## Trip class and motor protection depth The 3RW5245-6TC05: Trip class is configurable: default CLASS 10A, with selectable CLASS 10E or CLASS 20E per IEC 60947-4-2. Minimum operating current is 135 A, which sets the floor for the motor FLA the soft starter can regulate. Below this threshold the internal current sensing loses resolution — the load must draw at least 15 % of the smallest settable Ie. Rated voltage range is 200–600 V, covering common global line voltages (208 V, 230 V, 400 V, 480 V, 575 V) without a tap-change or reconfiguration. ## Fieldbus and control integration Onboard fieldbus options include PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET — the soft starter fits into most common automation networks without an external gateway. PROFIenergy support is available when used with the PROFINET communication module. Control supply is 24 V DC. Remote reset is possible by cycling the control supply voltage. Auto-reset is also supported for unattended restart after a fault clears. Analog output is not fitted — speed or torque feedback requires a separate encoder or drive interface. Torque control is also absent; this is a voltage-ramp soft starter, not a closed-loop torque controller. ## Mounting and environmental limits Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, 0 mm backward — plan the enclosure depth and ventilation accordingly. Dimensions are 393 mm height × 210 mm width × 203 mm depth. The enclosure cutout and door clearance must accommodate the full height — the unit is taller than a typical contactor of similar rating. Shock resistance is 15 g / 11 ms, with potential contact lifting at 12 g / 11 ms — relevant for mobile or high-vibration installations. Pollution degree 3 per IEC 60947-4-2 means the unit tolerates conductive pollution (condensation, light dust) typical of industrial control panels not hermetically sealed. ## Application features — pump and soft torque Pump Ramp Down is a dedicated deceleration profile that reduces water hammer in pump systems by extending the stop ramp. Soft Torque provides a gentler initial torque build-up for loads sensitive to mechanical shock, such as conveyors with loose product. Firmware updates are supported, and an error logbook is available with special accessories — useful for commissioning diagnostics and field troubleshooting. Service factor is 1.0 — the unit is not designed for continuous overload above the rated current. The minimum load is 15 % of the smallest settable Ie, so very small motors relative to the starter rating may not regulate correctly.","metaTitle":"Siemens 3RW5245-6TC05 SIRIUS Soft Starter, 135 A min","metaDescription":"Siemens 3RW5245-6TC05 SIRIUS soft starter, active production. Rated 135 A min, 200-600 V, Class 10A/10E/20E trip. UL, CSA, CE. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5245-6TC05","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 Screw 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":"screw-type 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":"1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 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":"1x (20 ... 12), 2x (20 ... 14)","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":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 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","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/8019b8db637994e258d2dcfa4f93e276.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830677&mlfb=3RW5245-6TC05"},"ai":{"faq":[{"question":"What trip classes does 3RW5245-6TC05 support?","answer":"The default trip class is CLASS 10A, with selectable CLASS 10E or CLASS 20E per IEC 60947-4-2. CLASS 20E extends to 20 seconds for high-inertia loads."},{"question":"What fieldbus protocols does 3RW5245-6TC05 support?","answer":"Onboard protocols include PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET. PROFIenergy is supported when used with the PROFINET communication module."},{"question":"What are the mounting clearances for 3RW5245-6TC05?","answer":"Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, 0 mm backward."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5245-6TC05","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/3RW5245-6TC05 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}}