{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5148-1XC14-0S","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5148-1XC14-0S","canonicalUrl":"https://aoctrl.com/siemens/3RW5148-1XC14-0S","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5148-1XC14-0S","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5148-1XC14-0S soft starter, 240 A minimum, 200-480 V rated voltage, Trip Class 10A/10E/20E, PROFIBUS, Modbus RTU, PROFINET, screw fixing, 417 x 210 x 203 mm.","salesMarkdown":"## Active production, 240 A minimum — what that means for your BOM The 3RW5148-1XC14-0S: The minimum settable current is 240 A, which sets the floor for motor FLA you can protect; below that the starter won't regulate properly. Rated voltage range is 200-480 V, covering common 208/230/460/480 VAC industrial supplies without a separate voltage tap. ## Trip class and starting profile — selecting the right protection curve Starting voltage is adjustable 30-100 %; the stopping voltage is fixed at 50 %, non-adjustable — plan the deceleration profile around that fixed threshold. Soft Torque and ramp-down (soft stop) are both available, giving control over acceleration and deceleration for pumps to avoid water hammer. ## Fieldbus and HMI — integration into a control network Onboard PROFIBUS, Modbus RTU, and PROFINET standard — no separate communication module needed; the starter talks directly to the PLC over any of these three fieldbuses. HMI-Standard and HMI-High Feature are both present; the High Feature HMI enables parameterization of the analog output (4-20 mA default or 0-10 V) and access to the error logbook. Firmware updates are supported in the field — useful if the plant standardizes on a later protocol revision. ## Mounting and clearance — panel layout constraints Screw fixing only — no DIN-rail clip; the 417 x 210 x 203 mm footprint needs four mounting holes in the back panel. Minimum clearance around the unit: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, 0 mm backwards — the back can sit flush against the panel. Mounting position allows ±90° rotation from vertical and ±22.5° tilt front-to-back — useful for tight enclosures or angled subpanels. ## Environmental ratings — where it can live in the panel Operating temperature range -25 to +60 °C, with derating required at 40 °C or above — the continuous current rating drops as ambient climbs. Shock resistance 15 g / 11 ms (12 g / 11 ms with potential contact lifting); vibration resistance 15 mm at 6 Hz, 2 g to 500 Hz — suitable for machine-mounted applications with moderate vibration. Pollution degree 3 per IEC 60947-4-2 — the unit tolerates conductive pollution in industrial environments without conformal coating on the enclosure. ## Control wiring and reset options Control circuit connections use screw-type terminals — standard for panel wiring, no special tooling needed. Auto-reset and remote reset (by cycling control supply voltage) are both supported, allowing unattended restart after a fault if the application permits. Inside-delta circuit connection is possible — reduces the starter current rating requirement for delta-connected motors by 58 %, but needs six motor leads brought to the starter.","metaTitle":"Siemens 3RW5148-1XC14-0S Soft Starter, 240 A, 200-480 V","metaDescription":"Siemens 3RW5148-1XC14-0S soft starter, 240 A minimum, 200-480 V rated voltage, Trip Class 10A/10E/20E. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5148-1XC14-0S","Height":"417 mm","Minimum":"240 A","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","at 50 Hz":"110 ... 250 V","at 60 Hz":"110 ... 250 V","Backwards":"0 mm","Downwards":"75 mm","Modbus RTU":"Yes","Trip Class":"CLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2","auto-RESET":"Yes","At The Side":"5 mm","Rated Value":"200 ... 480 V","Soft Torque":"Yes","description":"SIRIUS soft starter 200-480 V 570 A, 110-250 V AC screw terminals without bypass, analog output with HMI standard","HMI-Standard":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Voltage Ramp":"Yes","Analog Output":"Yes; 4 ... 20 mA (default) / 0 ... 10 V (parameterizable with High Feature HMI)","Error Logbook":"Yes","Service Factor":"1","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":"Yes","Minimum Load [%]":"15 %; Relative to smallest settable Ie","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","Degree Of Pollution":"3, acc. to IEC 60947-4-2","For Control Circuit":"screw-type terminals","Not Parameterizable":"2","Inside-Delta Circuit":"Yes","Starting Voltage [%]":"30 ... 100 %","Stopping Voltage [%]":"50 %; non-adjustable","Vibration Resistance":"15 mm to 6 Hz; 2g to 500 Hz","Ramp-Down (Soft Stop)":"Yes","at 40 °C rated value":"987 A","at 50 °C rated value":"873 A","at 60 °C rated value":"788 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":"14 W","at 50 °C after startup":"14 W","at 60 °C after startup":"14 W","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"1","Number Of Digital Inputs":"1","Weight Without Packaging":"9.75 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":"1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)","Motor Overload Protection":"Yes","Number Of Digital Outputs":"3","Via Software Configurable":"No","Impulse Voltage Rated Value":"6 V","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":"acc. to IEC 60947-4-2","at AC-15 at 250 V rated value":"3 A","of standard HMI module usable":"3RW5980-0HS00","Insulation Voltage Rated Value":"480 V","Ramp-Down Time Of Soft Starter":"0 ... 20 s","at 230 V at 40 °C rated value":"160 W","at 400 V at 40 °C rated value":"315 W","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; with optional HMI","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":"480 V","Start-Up Ramp Time Of Soft Starter":"0 ... 20 s","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","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","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":"1 400 V","of communication module Modbus RTU usable":"3RW5980-0CR00","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","utilization category according to IEC 60947-4-2":"AC-53b","Product Feature Integrated Bypass Contact System":"No","of communication module PROFINET standard usable":"3RW5980-0CS00","Control Supply Current In Standby Mode Rated Value":"30 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 %","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 mm; 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":"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":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","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":"12.2 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, (soft starter in conjunction with the associated protective device circuit breaker/fuse), Iq = 65 kA","Duration Of Inrush Current Peak At Application Of Control Supply Voltage":"2.2 ms","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-15 %","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-15 %","relative positive tolerance of the control supply voltage at AC at 50 Hz":"10 %","relative positive tolerance of the control supply voltage at AC at 60 Hz":"10 %","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1437-2; 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/922f2ff78a47b3ba2570e51383e00b14.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1496074&mlfb=3RW5148-1XC14-0S"},"ai":{"faq":[{"question":"What is the minimum motor FLA this soft starter can handle?","answer":"The minimum settable current is 240 A. The starter also has a minimum load of 15 % relative to the smallest settable Ie, so the motor FLA must be at least 240 A for proper regulation."},{"question":"What fieldbus protocols does 3RW5148-1XC14-0S support?","answer":"It supports PROFIBUS, Modbus RTU, and PROFINET standard — all three are onboard without needing a separate communication module."},{"question":"What are the clearance requirements around this soft starter?","answer":"Minimum clearances: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, and 0 mm backwards (flush against the panel)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5148-1XC14-0S","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/3RW5148-1XC14-0S 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}}