{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5125-1XC14-0S","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5125-1XC14-0S","canonicalUrl":"https://aoctrl.com/siemens/3RW5125-1XC14-0S","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5125-1XC14-0S","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5125-1XC14-0S soft starter, 25.5 A minimum, 200-480 VAC, Trip Class 10A/10E/20E, with PROFIBUS, Modbus RTU, PROFINET, analog output, and HMI.","salesMarkdown":"## Soft starter for motor control panels The Siemens 3RW5125-1XC14-0S is a SIRIUS soft starter sized for a minimum motor current of 25.5 A on a 200-480 VAC three-phase supply. The Trip Class defaults to CLASS 10A per IEC 60947-4-2, meaning it protects standard induction motors during start-up by limiting current and torque — the 10-second thermal curve suits most pump, fan, and conveyor loads without nuisance tripping. It also supports CLASS 10E and 20E for extended ramp times on high-inertia loads. Three fieldbus slices are built in: PROFIBUS, Modbus RTU, and PROFINET standard, so it drops into existing automation architectures without an external gateway. The analog output is configurable as 4-20 mA or 0-10 V, giving the PLC a direct read of motor current or power factor. An HMI-Standard and HMI-High Feature interface are onboard for local parameterization and diagnostics, including an error logbook. Mounting is screw-fixing on a vertical surface, with ±10° rotation and tilt allowed. The dimensions are 321 mm high, 185 mm wide, and 203 mm deep — a substantial footprint that needs clear panel space. Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm to the side, and zero backward.","metaTitle":"Siemens 3RW5125-1XC14-0S Soft Starter, 25.5 A, 200-480 V","metaDescription":"Siemens 3RW5125-1XC14-0S soft starter, 25.5 A minimum, 200-480 VAC, Trip Class 10A. PROFIBUS/Modbus/PROFINET. Analog output. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"185 mm","Height":"321 mm","Minimum":"25.5 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","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":"+/- 10° rotation possible and can be tilted forward or backward on vertical mounting surface","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":"109 A","at 50 °C rated value":"96 A","at 60 °C rated value":"87.5 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":"12 W","at 50 °C after startup":"12 W","at 60 °C after startup":"12 W","For Main Current Circuit":"box terminal","Number Of Analog Outputs":"1","Number Of Digital Inputs":"1","Weight Without Packaging":"5.6 kg","at 40 °C during startup":"882 W","at 50 °C during startup":"744 W","at 60 °C during startup":"659 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":"18.5 W","at 400 V at 40 °C rated value":"30 W","At Inside-Delta Circuit Minimum":"44.2 A","Width Of Connection Bar Maximum":"25 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":"3NA3830-6; 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":"3VA2163-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2163-7MN32-0AA0; Type of coordination 1, Iq = 20 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":"40 ... 53 lbf·in","At Rotary Coding Switch On Switch Position 1":"25.5 A","At Rotary Coding Switch On Switch Position 2":"28 A","At Rotary Coding Switch On Switch Position 3":"30.5 A","At Rotary Coding Switch On Switch Position 4":"33 A","At Rotary Coding Switch On Switch Position 5":"35.5 A","At Rotary Coding Switch On Switch Position 6":"38 A","At Rotary Coding Switch On Switch Position 7":"40.5 A","At Rotary Coding Switch On Switch Position 8":"43 A","At Rotary Coding Switch On Switch Position 9":"45.5 A","At Rotary Coding Switch On Switch Position 10":"48 A","At Rotary Coding Switch On Switch Position 11":"50.5 A","At Rotary Coding Switch On Switch Position 12":"53 A","At Rotary Coding Switch On Switch Position 13":"55.5 A","At Rotary Coding Switch On Switch Position 14":"58 A","At Rotary Coding Switch On Switch Position 15":"60.5 A","At Rotary Coding Switch On Switch Position 16":"63 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","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":"3NA3830-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 20 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)","For Main Contacts For Box Terminal Using Both Clamping Points Solid":"2x (2.5 ... 16 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":"44.2 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 2":"48.5 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 3":"52.8 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 4":"57.2 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 5":"61.5 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 6":"65.8 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 7":"70.1 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 8":"74.5 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 9":"78.8 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 10":"83.1 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 11":"87.5 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 12":"91.8 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 13":"96.1 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 14":"100 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 15":"105 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 16":"109 A","For Main Contacts For Box Terminal Using Both Clamping Points Stranded":"2x (6 ... 16 mm²), 2x (10 ... 50 mm²)","For Main Contacts For Box Terminal Using The Back Clamping Point Solid":"1x (2.5 ... 16 mm²)","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE8024-1; Type of coordination 2, (soft starter in conjunction with the associated protective device circuit breaker/fuse), Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Solid":"1x (2.5 ... 16 mm²)","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 %","For Main Contacts For Box Terminal Using The Back Clamping Point Stranded":"1x (10 ... 70 mm²)","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1022-0; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Stranded":"1x (10 ... 70 mm²)","Relative Negative Tolerance Of The Operating Voltage At Inside-Delta Circuit":"-15 %","Relative Positive Tolerance Of The Operating Voltage At Inside-Delta Circuit":"10 %","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded With Core End Processing":"2x (2.5 ... 35 mm²)","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded With Core End Processing":"1x (2.5 ... 50 mm²)","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded With Core End Processing":"1x (2.5 ... 50 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1496063&mlfb=3RW5125-1XC14-0S","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RW5125-1XC14-0S/alternatives.json"},"ai":{"faq":[{"question":"Does the 3RW5125-1XC14-0S have analog output and HMI?","answer":"Yes. The analog output is 4-20 mA by default, parameterizable to 0-10 V with the High Feature HMI. Both HMI-Standard and HMI-High Feature interfaces are onboard, along with an error logbook for diagnostics."},{"question":"Does the 3RW5125-1XC14-0S include a bypass contactor?","answer":"The evidence does not state an integrated bypass contactor. The soft starter supports inside-delta circuit configuration and includes soft torque, voltage ramp, and ramp-down (soft stop) features, but a separate bypass contactor may be needed depending on the application design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5125-1XC14-0S","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/3RW5125-1XC14-0S when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}