{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5246-2AC05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5246-2AC05","canonicalUrl":"https://aoctrl.com/siemens/3RW5246-2AC05","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5246-2AC05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5246-2AC05 soft starter, 160 A minimum rated current, 200-600 V, Class 10A/10E/20E, PROFIBUS/Modbus/EtherNet/IP/PROFINET, screw fixing, 393 x 210 x 203 mm.","salesMarkdown":"## 160 A rated current — what it means for the motor The 3RW5246-2AC05 is a SIRIUS soft starter rated for a minimum motor current of 160 A. That's the smallest settable Ie — the actual motor FLA you program into the unit must be at or above this floor. The voltage range covers 200 to 600 V AC, so it fits common low-voltage networks from 208 V to 480 V and up to 600 V Canadian-style supplies. Trip class is selectable: Class 10A (default), 10E, or 20E per IEC 60947-4-2. For a pump or fan with a long deceleration ramp, Class 20E gives you more thermal headroom during the start; for a conveyor that needs a quick cut-out on overload, stick with 10A. The unit also supports a soft torque ramp and pump ramp-down, so it's well suited for fluid-handling applications where water hammer is a concern. ## Fieldbus and control — which networks it speaks This soft starter comes with onboard PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET — that's essentially the full industrial Ethernet and fieldbus suite in one unit. It also supports PROFIenergy for energy management when used with the PROFINET communication module. The analog output is configurable as 4-20 mA or 0-10 V, letting you feed a motor current signal to a PLC or SCADA without an extra transducer. A remote reset is possible by cycling the 24 V control supply, and the unit supports auto-reset — useful for unattended pumping stations where a manual reset trip would require a site visit. The firmware can be updated in the field, which matters for long-life installations where you might need to patch for new network profiles. ## Mounting and clearance — panel fit Dimensions are 393 mm height, 210 mm width, 203 mm depth. Mounting is by screw fixing — no DIN-rail clip, so budget for four M6 bolts into a backplate. Clearance requirements: 100 mm above the unit, 10 mm in front, 0 mm behind, 75 mm below, and 5 mm on each side. The 100 mm top clearance is the one that catches people out — skimping there blocks airflow through the heatsink fins. If the panel ambient hits 50 °C, you'll need to reduce the continuous current — the exact curve is in the manual. Shock resistance is 15 g for 11 ms, which is typical for industrial floor-mounted gear but not for mobile or marine applications without additional damping.","metaTitle":"Siemens 3RW5246-2AC05 SIRIUS Soft Starter, 160 A, 200-600 V","metaDescription":"Siemens 3RW5246-2AC05 SIRIUS soft starter, 160 A rated, 200-600 V, Class 10A/10E/20E. Active production, UL/CSA/CE. Quoted to order against BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5246-2AC05","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 ... 600 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-600 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 500 V at 40 °C rated value":"250 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","at 575/600 V at 50 °C rated value":"300 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":"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","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":"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/9d30b486a24a7d37aabbd8cf0401c9b8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830681&mlfb=3RW5246-2AC05"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RW5246-2AC05?","answer":"The unit carries UL, CSA, and CE markings, covering North American and European regulatory acceptance. The manufacturer's declaration of conformity and the full manual are available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5246-2AC05","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/3RW5246-2AC05 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}}