{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5248-2TC04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5248-2TC04","canonicalUrl":"https://aoctrl.com/siemens/3RW5248-2TC04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5248-2TC04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5248-2TC04 soft starter, 240 A minimum, 200-480 V, Class 10A/10E/20E, screw fixing, 393 x 210 x 203 mm.","salesMarkdown":"## 240 A minimum, 200-480 V — the operating envelope The 3RW5248-2TC04 is a SIRIUS hybrid switching device rated for a minimum operating current of 240 A across a 200-480 V supply range. That 240 A floor governs the smallest settable motor full-load current the unit can regulate — set the ramp below it and the internal current loop loses resolution, so the BOM motor FLA must land at or above that figure. Trip class is configurable as CLASS 10A (default), 10E, or 20E per IEC 60947-4-2. Stepping to 20E buys you double the thermal budget for high-inertia conveyors or crusher drums that take longer to spin up. ## Mounting clearances and thermal derating Screw-fixed mounting on a vertical surface, rotatable ±90° or tiltable ±22.5° front-to-back. The mandatory free-air clearances are 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, and zero backwards — stack that against the gland-plate and busbar layout before committing the panel layout. The 393 × 210 × 203 mm envelope (height × width × depth) sets the DIN-rail or backplate footprint. A 50 °C cabinet interior pulls the continuous current capability down — the exact curve is in the product documentation, but the rule of thumb is to budget 1-2% per degree above 40 °C for the SIRIUS 3RW52 family. Pollution degree 3 per IEC 60947-4-2 means the unit tolerates conductive dust and condensation typical of industrial enclosures without conformal coating. ## Fieldbus selection and control features The soft starter ships with onboard PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET — no separate communication module needed for any of these five protocols. PROFIenergy is supported when used with the PROFINET standard communication module, letting the drive coordinate energy-saving pauses during production idle periods. Soft torque and pump ramp down are built in — the ramp-down profile reduces pressure surges on discharge lines during pump stop sequences. Auto-reset is available, and remote reset is achieved by cycling the 24 V control supply off and on. The unit logs errors to an internal logbook, though that requires the special accessory module. ## Approvals and compliance documentation CE marking, UL approval, and CSA approval are all confirmed on the nameplate — the unit carries acceptance for European low-voltage directive, North American NRTL listing, and Canadian standards. The pollution degree 3 rating and IEC 60947-4-2 trip-class certification cover the functional safety and environmental withstand for fixed-installation industrial motor control. Shock resistance is specified at 15 g / 11 ms, with potential contact lifting above 12 g / 11 ms — relevant for installation on vibrating skids or near reciprocating compressors where the panel sees repetitive impulse loads.","metaTitle":"Siemens 3RW5248-2TC04 Soft Starter, 240 A, 200-480 V, SIRIUS","metaDescription":"Siemens 3RW5248-2TC04 SIRIUS soft starter, 240 A minimum, 200-480 V, Class 10A/10E/20E trip. Active production, sourced to order. UL, CSA, CE approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5248-2TC04","Height":"393 mm","Minimum":"240 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 570 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":"987 A","at 50 °C rated value":"873 A","at 60 °C rated value":"796 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":"183 W","at 50 °C after startup":"163 W","at 60 °C after startup":"153 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":"10.6 kg","at 40 °C during startup":"10 241 W","at 50 °C during startup":"8 500 W","at 60 °C during startup":"7 663 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":"160 kW","at 400 V at 40 °C rated value":"315 kW","At Inside-Delta Circuit Minimum":"416 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":"150 hp","at 220/230 V at 50 °C rated value":"200 hp","at 460/480 V at 50 °C rated value":"400 hp","of circuit breaker usable at 400 V":"3VA2580-6HN32-0AA0 ; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2580-6HN32-0AA0 ; 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":"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":"240 A","At Rotary Coding Switch On Switch Position 2":"262 A","At Rotary Coding Switch On Switch Position 3":"284 A","At Rotary Coding Switch On Switch Position 4":"306 A","At Rotary Coding Switch On Switch Position 5":"328 A","At Rotary Coding Switch On Switch Position 6":"350 A","At Rotary Coding Switch On Switch Position 7":"372 A","At Rotary Coding Switch On Switch Position 8":"394 A","At Rotary Coding Switch On Switch Position 9":"416 A","for DIN cable lug for main contacts stranded":"2x (50 ... 240 mm²)","At Rotary Coding Switch On Switch Position 10":"438 A","At Rotary Coding Switch On Switch Position 11":"460 A","At Rotary Coding Switch On Switch Position 12":"482 A","At Rotary Coding Switch On Switch Position 13":"504 A","At Rotary Coding Switch On Switch Position 14":"526 A","At Rotary Coding Switch On Switch Position 15":"548 A","At Rotary Coding Switch On Switch Position 16":"570 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":"3VA2510-6HN32-0AA0 ; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2510-6HN32-0AA0 ; 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":"416 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 2":"454 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 3":"492 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 4":"530 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 5":"568 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 6":"606 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 7":"644 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 8":"682 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 9":"721 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 10":"759 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 11":"797 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 12":"835 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 13":"873 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 14":"911 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 15":"949 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 16":"987 A","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3340-8 ; 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":"3NE1437-2 ; 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/3ac29c6e9eea3f21a5fe2f970858e330.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830716&mlfb=3RW5248-2TC04"},"ai":{"faq":[{"question":"What are the key fieldbus options on the 3RW5248-2TC04?","answer":"The soft starter includes PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET onboard. No separate communication module is needed for these protocols."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5248-2TC04","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/3RW5248-2TC04 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}}