{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5246-2AC04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5246-2AC04","canonicalUrl":"https://aoctrl.com/siemens/3RW5246-2AC04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5246-2AC04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5246-2AC04 soft starter, 160 A minimum, 200-480 V rated, screw fixing, 203 x 210 x 393 mm, UL/CSA/CE, multi-protocol communication.","salesMarkdown":"## 160 A floor — what it means for motor sizing The 3RW5246-2AC04 sets a minimum operating current of 160 A. This is the lower bound for the motor full-load amps the soft starter can regulate — a 150 A motor is below the floor and the unit will not start it correctly. The minimum load is 15 % relative to the smallest settable Ie, so the actual usable range starts at about 24 A with the right parameterization, but the 160 A floor governs the main power circuit design. Rated voltage covers 200 to 480 V, which spans the common low-voltage motor supplies worldwide — 208 V, 230 V, 400 V, 460 V, 480 V. No need for a separate voltage tap or transformer for most global installations. ## Trip class and thermal protection Trip class is configurable as CLASS 10A (default), 10E, or 20E per IEC 60947-4-2. The soft starter includes auto-reset and remote reset by cycling the 24 V control supply. For an unattended pump station or conveyor, this means the drive restarts after a transient overload without a site visit — but only if the fault clears within the reset cycle. ## Panel fit and mounting constraints Mounting is screw fixing — not DIN-rail snap-on. The unit measures 203 mm deep, 210 mm wide, and 393 mm high. Clearance requirements: 100 mm above, 10 mm in front, 5 mm at the sides, 75 mm below, and 0 mm behind. The 0 mm rear clearance means it can sit flush against a backplate, but the 100 mm top gap is mandatory for convection cooling — skimping here derates the unit. Mounting position allows vertical surface with ±90° rotation and ±22.5° tilt front-to-back. This gives flexibility for tight enclosures — you can rotate the unit 90 degrees if the cabinet depth is tight, but the derating curve at 40 °C and above still applies. ## Communication and feedback options Built-in support for PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET. This is a multi-protocol soft starter — no separate gateway module needed for most PLC networks. PROFIenergy is available when paired with the PROFINET communication module, useful for energy management in automated lines. Analog output configurable as 4-20 mA (default) or 0-10 V, parameterizable via the High Feature HMI. This feeds motor current or load status to a remote SCADA or local panel meter without a separate signal conditioner.","metaTitle":"Siemens 3RW5246-2AC04 SIRIUS Soft Starter, 160 A, 200-480 V","metaDescription":"Siemens 3RW5246-2AC04 SIRIUS soft starter, 160 A minimum, 200-480 V rated. Active production. UL/CSA/CE approved. Multi-protocol communication. 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":"3RW5246-2AC04","Height":"393 mm","Minimum":"160 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 ... 480 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-480 V 370 A, 24 V AC/DC spring-type terminals Analog output","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Analog Output":"Yes; 4 ... 20 mA (default) / 0 ... 10 V (parameterizable with High Feature HMI)","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":"641 A","at 50 °C rated value":"568 A","at 60 °C rated value":"519 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":"123 W","at 50 °C after startup":"110 W","at 60 °C after startup":"102 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"1","Number Of Digital Inputs":"1","Weight Without Packaging":"9.9 kg","at 40 °C during startup":"5 575 W","at 50 °C during startup":"4 706 W","at 60 °C during startup":"4 157 W","For Control Circuit Solid":"2x (0.25 ... 1.5 mm²)","Motor Overload Protection":"Yes; 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":"110 kW","at 400 V at 40 °C rated value":"200 kW","At Inside-Delta Circuit Minimum":"277 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":"100 hp","at 220/230 V at 50 °C rated value":"125 hp","at 460/480 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 ... 480 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":"No","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":"160 A","At Rotary Coding Switch On Switch Position 2":"174 A","At Rotary Coding Switch On Switch Position 3":"188 A","At Rotary Coding Switch On Switch Position 4":"202 A","At Rotary Coding Switch On Switch Position 5":"216 A","At Rotary Coding Switch On Switch Position 6":"230 A","At Rotary Coding Switch On Switch Position 7":"244 A","At Rotary Coding Switch On Switch Position 8":"258 A","At Rotary Coding Switch On Switch Position 9":"272 A","for DIN cable lug for main contacts stranded":"2x (50 ... 240 mm²)","At Rotary Coding Switch On Switch Position 10":"286 A","At Rotary Coding Switch On Switch Position 11":"300 A","At Rotary Coding Switch On Switch Position 12":"314 A","At Rotary Coding Switch On Switch Position 13":"328 A","At Rotary Coding Switch On Switch Position 14":"342 A","At Rotary Coding Switch On Switch Position 15":"356 A","At Rotary Coding Switch On Switch Position 16":"370 A","Type Of Voltage Of The Control Supply Voltage":"AC/DC","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","Inrush Current By Closing The Bypass Contacts Maximum":"7.6 A","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","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":"277 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 2":"301 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 3":"326 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 4":"350 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 5":"374 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 6":"398 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 7":"423 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 8":"447 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 9":"471 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 10":"495 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 11":"520 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 12":"544 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 13":"568 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 14":"592 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 15":"617 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 16":"641 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/ed1db93b64885f4f88604fa7a66697a5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830680&mlfb=3RW5246-2AC04"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RW5246-2AC04?","answer":"The unit carries CE marking, UL approval, and CSA approval. These cover the essential regulatory requirements for installation in Europe and North America. The degree of pollution is 3 per IEC 60947-4-2, meaning it is rated for industrial environments with conductive pollution."},{"question":"What is the depth of 3RW5246-2AC04?","answer":"The depth is 203 mm. Combined with a width of 210 mm and height of 393 mm, the unit requires a panel cutout that accommodates these dimensions plus the mandatory clearance zones: 100 mm above, 10 mm front, 5 mm sides, 75 mm below, and 0 mm behind."},{"question":"What is the closest functional second-source for 3RW5246-2AC04?","answer":"The peer MPNs listed (6ED1052-1MD08-0BA1, 6ES7517-3FP00-0AB0, 6AG1052-2FB08-7BA1) are from different Siemens product families — LOGO! controllers, S7-1500 CPUs, and SIPLUS variants — and are not drop-in replacements for the 3RW5246-2AC04 soft starter. The 3RW5246-2AC04 is a unique order code within the SIRIUS soft starter range; any substitution requires a full review of the motor starting requirements and panel layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5246-2AC04","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/3RW5246-2AC04 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}}