{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4465-2BC46","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4465-2BC46","canonicalUrl":"https://aoctrl.com/siemens/3RW4465-2BC46","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4465-2BC46","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW4465-2BC46 soft starter, 1864 A at 40 °C, 690 V insulation voltage, 50/60 Hz, integrated bypass, screw fixing.","salesMarkdown":"## 1864 A at 40 °C — the derating curve matters The 3RW4465-2BC46: That 40 °C ceiling is the reference point — if your panel ambient runs warmer, the continuous current drops by roughly 10 % per 10 °C rise. Plan the cabinet cooling around the 60 °C figure if the enclosure sits near other heat sources. The integrated bypass contact system takes the thyristors out of the circuit once the motor is up to speed, so the heat load during run is just the bypass contactor resistance, not the SCR forward voltage drop. That keeps the internal temperature rise lower than a non-bypassed starter running the same current. ## Cabinet footprint and wiring terminations The unit measures 780 mm high by 575 mm wide by 292 mm deep — a substantial footprint that needs a floor-mount or large wall-mount enclosure. Screw fixing is the fastening method, so plan for drilled mounting points on a backplate or sub-panel. Power wiring lands on busbar connections with a stranded range of 70–240 mm² and a finely stranded range of 50–240 mm², plus a kcmil range of 2/0–500 for North American builds. Mounting position allows vertical surface orientation with ±90° rotation and ±22.5° tilt forward/backward, which covers most panel layouts. Clearance requirements: 100 mm upward, 75 mm downward, 5 mm at the sides — the side gap is tight, so airflow is primarily vertical. ## Protection, control, and wiring flexibility Motor overload protection and intrinsic device protection are both built in, with adjustable current limitation — you set the current limit threshold to match the motor FLA and the application's acceleration torque requirement. The minimum load is 8 % of the rated current, so it handles lightly loaded motors without nuisance tripping. An external reset input and a display for fault signals are standard — the display shows the fault code directly, so the commissioning engineer reads the trip reason without a separate HMI or software tool. A motor brake output is also included for applications that need DC injection braking. Maximum motor cable length is 500 m — sufficient for most industrial layouts, but if the motor is farther than that, add an output reactor to limit reflected wave voltage spikes.","metaTitle":"Siemens 3RW4465-2BC46 SIRIUS Soft Starter, 1864 A, 690 V","metaDescription":"Siemens 3RW4465-2BC46 SIRIUS soft starter, 1864 A at 40°C, 690 V insulation, integrated bypass. Active production, quoted to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Soft Starters"],"specifications":{"Depth":"292mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"575mm","title":"3RW4465-2BC46","Height":"780mm","Upwards":"100mm","Stranded":"70 ... 240 mm²","Downwards":"75mm","Thyristors":"Yes","At The Side":"5mm","description":"SIRIUS soft starter Values at 690 V, 40 °C standard: 1076 A, 1100 kW Inside-delta: only up to 600 V 400-690 V AC, 230 V AC spring-type terminals!!! Phased-out product!!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5558-2HA16<<","During Storage":"-25 ... +80°C","External Reset":"Yes","Finely Stranded":"50 ... 240 mm²","lifecycle_stage":"current","During Operation":"60°C","Fastening Method":"screw fixing","Minimum Load [%]":"8%","For Main Contacts":"2/0 ... 500 kcmil","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","Product Brand Name":"SIRIUS","Degree Of Pollution":"3, acc. to IEC 60947-4-2","Product Designation":"Soft starter","Wire Length Maximum":"500m","Derating Temperature":"40°C","Inside-Delta Circuit":"Yes","at 50 Hz rated value":"230V","at 60 Hz rated value":"230V","at 40 °C rated value":"1 864A","at 50 °C rated value":"1 680A","at 60 °C rated value":"1 524A","For Auxiliary Contacts":"2x (24 ... 16)","For Main Current Circuit":"busbar connection","Motor Overload Protection":"Yes","Intrinsic Device Protection":"Yes","Adjustable Current Limitation":"Yes","Insulation Voltage Rated Value":"690V","Operating Frequency Rated Value":"50 ... 60Hz","Display Version For Fault Signal":"Display","Integrated Bypass Contact System":"Yes","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Component Motor Brake Output":"Yes","during storage according to IEC 60721":"1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4","reference code according to EN 61346-2":"Q","during operation according to IEC 60721":"3K6 (no formation of ice, no 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)","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Evaluation Of Thermistor Motor Protection":"Yes","at standard circuit at 40 °C rated value":"800kW","at standard circuit at 50 °C rated value":"1 100hp","number of CO contacts for auxiliary contacts":"1","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"3","Type Of Voltage Of The Control Supply Voltage":"AC","at inside-delta circuit at 40 °C rated value":"1 350kW","at inside-delta circuit at 50 °C rated value":"1 900hp","Control Supply Voltage Frequency 1 Rated Value":"50Hz","Control Supply Voltage Frequency 2 Rated Value":"60Hz","Installation Altitude At Height Above Sea Level":"5 000m","continuous operating current [% of Ie] at 40 °C":"115%","Operating Voltage At Standard Circuit Rated Value":"400 ... 690V","at 690 V at standard circuit at 40 °C rated value":"1 100kW","contact rating of auxiliary contacts according to UL":"B300 / R300","Operating Voltage At Inside-Delta Circuit Rated Value":"400 ... 600V","Relative Negative Tolerance Of The Operating Frequency":"-10%","Relative Positive Tolerance Of The Operating Frequency":"10%","Relative Negative Tolerance Of The Control Supply Voltage Frequency":"-10%","Relative Positive Tolerance Of The Control Supply Voltage Frequency":"10%","Relative Negative Tolerance Of The Operating Voltage At Standard Circuit":"-15%","Relative Positive Tolerance Of The Operating Voltage At Standard Circuit":"10%","power loss [W] at operational current at 40 °C during operation typical":"510W","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%","Adjustable Motor Current For Motor Overload Protection Minimum Rated Value":"215A","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/5d8d458716e3533c03d0b9fa20d375c4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=42026&mlfb=3RW4465-2BC46"},"ai":{"faq":[{"question":"What are the key current ratings for the 3RW4465-2BC46 at different ambient temperatures?","answer":"At 40 °C ambient the rated current is 1,864 A. The 40 °C figure is the reference; plan your panel cooling around the actual ambient temperature your enclosure will see."},{"question":"Does the 3RW4465-2BC46 have an integrated bypass?","answer":"Yes, the integrated bypass contact system takes the thyristors out of circuit once the motor reaches full speed, reducing heat dissipation during continuous run operation."},{"question":"What wiring terminations does the 3RW4465-2BC46 use for power and control?","answer":"Power connections are busbar-type, accepting stranded wire from 70 to 240 mm² and finely stranded from 50 to 240 mm², plus 2/0 to 500 kcmil."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4465-2BC46","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/3RW4465-2BC46 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}}