{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5543-2HA14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5543-2HA14","canonicalUrl":"https://aoctrl.com/siemens/3RW5543-2HA14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5543-2HA14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW55 soft starter, order code 3RW5543-2HA14, rated 200-480 V, ATEX and IECEx certified, multi-protocol communications, active production.","salesMarkdown":"## What this soft starter carries The 3RW5543-2HA14: ATEX and IECEx certification (both marked Yes) means this unit is approved for installation in potentially explosive atmospheres — a requirement often missed on standard soft starters. The CE, UL, and CSA marks (all Yes) cover European, US, and Canadian regulatory jurisdictions. Trip class is configurable: CLASS 10A / 10E (default) / 20E / 30E per IEC 60947-4-2. That means you can match the overload protection to the motor start profile — CLASS 10 for standard starts, CLASS 20 or 30 for high-inertia loads like centrifuges or crushers where the start takes longer. ## Fieldbus and control flexibility Communications are multi-protocol out of the box: PROFIBUS (Yes), Modbus RTU (Yes), Modbus TCP (Yes), and EtherNet/IP (Yes). PROFIenergy is supported in connection with PROFINET Standard and PROFINET High-Feature communication modules. This avoids needing a separate gateway module for most common plant networks. The analog output is configurable as 4-20 mA (default) or 0-10 V, giving a direct process signal back to a PLC or DCS without an extra transducer. Remote reset (Yes), auto-reset (Yes), and a parameterizable event list and error logbook (both Yes) mean the starter can be integrated into an automated restart scheme — useful for remote or unattended pump stations. ## Motor control features for demanding loads DC braking (Yes), voltage ramp (Yes), pump ramp down (Yes), torque control (Yes), and a breakaway pulse (Yes) give this starter the toolset for pumps, conveyors, and high-inertia machinery. The breakaway pulse helps break a stuck pump or conveyor free before the soft-start ramp engages. Motor heating (Yes) and a service factor of 1.15 (Yes) indicate the starter can manage motor thermal protection with a 15% continuous overload margin — common in HVAC and pumping applications where the motor may run at the top of its nameplate. Accuracy Class 5 per IEC 61557-12 means the measurement accuracy for current, voltage, and power is within 5% — sufficient for monitoring and energy management but not for precision metering. The trace function and firmware update capability (both Yes) allow diagnostics and future feature upgrades without replacing hardware. Dimensions: 393 mm height, 210 mm width, 203 mm depth. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the side, 0 mm backwards. The zero backward clearance means it can sit flush against a back panel — useful when retrofitting into an existing enclosure where depth is tight. Termination is not screw-type (Screw Terminal: No) — this unit uses spring-cage or ring-lug connections typical of the SIRIUS 3RW55 frame. Verify your panel wiring method matches before committing the BOM line.","metaTitle":"Siemens 3RW5543-2HA14 Soft Starter, 200-480V, ATEX","metaDescription":"Siemens 3RW5543-2HA14 soft starter, 200-480V rated, ATEX & IECEx certified, multi-protocol (PROFIBUS, Modbus RTU/TCP, EtherNet/IP).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"203 mm","IECEx":"Yes","Width":"210 mm","Height":"393 mm","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","CE marking":"Yes","DC braking":"Yes","Event List":"Yes","Modbus RTU":"Yes","Modbus TCP":"Yes","Trip Class":"CLASS 10A / 10E (default) / 20E / 30E; 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 and PROFINET High-Feature communication modules","Rated Value":"200 ... 480 V","UL approval":"Yes","CSA approval":"Yes","Remote Reset":"Yes","Voltage Ramp":"Yes","Analog Output":"Yes; 4 ... 20 mA (default) / 0 ... 10 V","Error Logbook":"Yes","Motor Heating":"Yes","Accuracy Class":"5 (based on IEC 61557-12)","Pump Ramp Down":"Yes","Screw Terminal":"No","Service Factor":"1.15","Torque Control":"Yes","Trace Function":"Yes","Breakaway Pulse":"Yes","Firmware Update":"Yes","Parameterizable":"4","lifecycle_stage":"current","Combined Braking":"Yes","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 [%]":"10 %; Relative to set Ie","Product Category":"Hybrid switching devices","Shock Resistance":"15 g / 11 ms, from 6 g / 11 ms with potential contact lifting","Start Torque [%]":"10 ... 100 %","Mounting Position":"Vertical (can be rotated +/- 90° and tilted forward or backward +/- 22.5°)","PROFINET standard":"Yes","Product Brand Name":"SIRIUS","Application Wizards":"Yes","Degree Of Pollution":"3, acc. to IEC 60947-4-2","For Control Circuit":"spring-loaded terminals","Product Designation":"Soft starter","Reversing Operation":"Yes","Stopping Torque [%]":"10 ... 100 %","Alternative Run-Down":"Yes","Condition Monitoring":"Yes","Idle Time Adjustable":"0 ... 255 s","Inside-Delta Circuit":"Yes","Starting Voltage [%]":"20 ... 100 %","Stopping Voltage [%]":"50 %; non-adjustable","Vibration Resistance":"15 mm up to 6 Hz; 2 g up to 500 Hz","PROFINET high-feature":"Yes","Ramp-Down (Soft Stop)":"Yes","Torque Limitation [%]":"20 ... 200 %","at 40 °C rated value":"364 A","at 50 °C rated value":"322 A","at 60 °C rated value":"294 A","Communication Function":"Yes","Digital Output Version":"3 normally-open contacts (NO) / 1 changeover contact (CO)","Slave Pointer Function":"Yes","Spring-Loaded Terminal":"Yes","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"63 W","at 50 °C after startup":"56 W","at 60 °C after startup":"51 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","Emergency Operation Mode":"Yes","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"1","Number Of Digital Inputs":"4","Number Of Parameter Sets":"3","Weight Without Packaging":"10.2 kg","at 40 °C during startup":"3 550 W","at 50 °C during startup":"2 967 W","at 60 °C during startup":"2 605 W","Breakaway Time Adjustable":"0 ... 2 s","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) / When using the motor overload protection according to ATEX, an upstream contactor is required in inside-delta circuit.","Number Of Digital Outputs":"4","Via Software Configurable":"Yes","Automatic Parameterisation":"Yes","Impulse Voltage Rated Value":"6 kV","Intrinsic Device Protection":"Yes","Number Of Controlled Phases":"3","During Storage And Transport":"-40 ... +80 °C","Type Of The Motor Protection":"Electronic, tripping in the event of thermal overload of the motor","Via Software Parameterizable":"Yes","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Electromagnetic Compatibility":"acc. to IEC 60947-4-2","Substance Prohibitance (Date)":"02/15/2018","at 40 °C rated value minimum":"42 A","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","Insulation Voltage Rated Value":"480 V","Ramp-Down Time Of Soft Starter":"0 ... 360 s","at 230 V at 40 °C rated value":"55 kW","at 400 V at 40 °C rated value":"110 kW","Width Of Connection Bar Maximum":"45 mm","Breakaway Voltage [%] Adjustable":"40 ... 100 %","Control Supply Voltage Frequency":"50 ... 60 Hz","Operating Measured Value Display":"Yes","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":"2x3NA3354-6; Type of coordination 1, Iq = 65 kA","Between Main And Auxiliary Circuit":"480 V; does not apply for thermistor connection","Start-Up Ramp Time Of Soft Starter":"0 ... 360 s","at 200/208 V at 50 °C rated value":"60 hp","at 220/230 V at 50 °C rated value":"60 hp","at 460/480 V at 50 °C rated value":"150 hp","of circuit breaker usable at 400 V":"3VA2325-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2325-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","At Inside-Delta Circuit Rated Value":"200 ... 480 V","Programmable Control Inputs/Outputs":"Yes","at the digital inputs at DC maximum":"1 000 m","of communication module Ethernet/IP":"3RW5980-0CE00","Current Unbalance Limiting Value [%]":"10 ... 60 %","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","Current Limiting Value [%] Adjustable":"125 ... 800 %","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","according to ATEX directive 2014/34/EU":"BVS 18 ATEX F 003 X","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":"1 400 V","Evaluation Of Thermistor Motor Protection":"Yes; Type A PTC or Klixon / Thermoclick","Number Of Digital Outputs Parameterizable":"3","of communication module Modbus RTU usable":"3RW5980-0CR00","of communication module Modbus TCP usable":"3RW5980-0CT00","Creep Speed In Both Directions Of Rotation":"Yes","Ground-Fault Monitoring Limiting Value [%]":"10 ... 95 %","Soft Starting At Heavy Starting Conditions":"Yes","For Main Contacts With Screw-Type Terminals":"124 ... 210 lbf·in","Recovery Time After Overload Trip Adjustable":"60 ... 1 800 s","for DIN cable lug for main contacts stranded":"2x (50 ... 240 mm²)","Number Of Digital Outputs Not Parameterizable":"1","Type Of Voltage Of The Control Supply Voltage":"AC","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":"150 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":"100 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","of communication module PROFINET high-feature usable":"3RW5950-0CH00","Inrush Current By Closing The Bypass Contacts Maximum":"0.87 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":"2x3NA3354-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2440-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2440-7MN32-0AA0; 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 Frequency":"-10 %","Relative Positive Tolerance Of The Control Supply Voltage Frequency":"10 %","Inrush Current Peak At Application Of Control Supply Voltage Maximum":"43 A","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3333; Type of coordination 2, Iq = 65 kA","Duration Of Inrush Current Peak At Application Of Control Supply Voltage":"1.6 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":"3NE1230-2; for supply systems up to 500 V; 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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=831355&mlfb=3RW5543-2HA14","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RW5543-2HA14/alternatives.json"},"ai":{"faq":[{"question":"Does 3RW5543-2HA14 have Modbus RTU support?","answer":"Yes, Modbus RTU is supported, along with Modbus TCP, EtherNet/IP, and PROFIBUS."},{"question":"Is 3RW5543-2HA14 compatible with PROFIBUS?","answer":"Yes, PROFIBUS is listed as supported."},{"question":"What is 3RW5543-2HA14's ATEX certification?","answer":"ATEX certification is marked Yes, along with IECEx, CE, UL, and CSA approvals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5543-2HA14","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/3RW5543-2HA14 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}}