{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4465-2BC44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4465-2BC44","canonicalUrl":"https://aoctrl.com/siemens/3RW4465-2BC44","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4465-2BC44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW4465-2BC44 soft starter, 1864 A at 40 °C, 230 V at 50/60 Hz, thyristor-based, integrated bypass, inside-delta circuit, screw fixing, busbar connection, 575 x 780 x 292 mm.","salesMarkdown":"## 1864 A at 40 °C — current derating drives the panel fit The 3RW4465-2BC44 is a SIRIUS soft starter rated 1 864 A at 40 °C (cite:), derating to 1 680 A at 50 °C (cite:) and 1 524 A at 60 °C (cite:). The derating temperature is 40 °C (cite:), so ambient above that cuts the continuous current — budget the panel's internal rise when sizing. Thyristor-based (cite:) with an integrated bypass contact system (cite:) that takes the SCRs out of the circuit once the motor is at speed, eliminating heat dissipation in the power stack during steady-state running. Supports inside-delta connection (cite:) — wiring the soft starter between the delta legs rather than in the line reduces the phase current the unit sees, effectively allowing a smaller frame to start a given motor. ## Mounting and clearance — 780 mm tall, needs 100 mm above Dimensions 575 mm wide, 780 mm high, 292 mm deep (cite:,). Mounting is screw fixing (cite:) to a vertical surface, rotatable +/-90° and tiltable +/-22.5° (cite:). Clearance requirements: 100 mm upwards (cite:), 75 mm downwards (cite:), 5 mm at the side (cite:). The side gap is tight — adjacent components can be close, but the vertical airflow path must stay open. Power connection is busbar (cite:) with main contact wire range 2/0... 500 kcmil (cite:). ## Protection and control features Built-in motor overload protection (cite:) and intrinsic device protection (cite:) with adjustable current limitation (cite:). Minimum load is 8% (cite:) — the unit can soft-start very light loads without dropping out. Includes a display for fault signals (cite:) and external reset capability (cite:). A motor brake output is integrated (cite:) — useful for applications needing controlled deceleration or holding. Rated insulation voltage 690 V (cite:), pollution degree 3 per IEC 60947-4-2 (cite:). Maximum motor wire length 500 m (cite:) — beyond that, capacitive charging current may cause nuisance trips or SCR misfiring.","metaTitle":"Siemens 3RW4465-2BC44 SIRIUS Soft Starter, 1864 A at 40 °C","metaDescription":"Siemens 3RW4465-2BC44 SIRIUS soft starter, rated 1864 A at 40 °C, 230 V at 50/60 Hz. 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":"292mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"575mm","title":"3RW4465-2BC44","Height":"780mm","Upwards":"100mm","Stranded":"70 ... 240 mm²","Downwards":"75mm","Thyristors":"Yes","At The Side":"5mm","description":"SIRIUS soft starter Values at 400 V, 40 °C standard: 1076 A, 630 kW Inside-delta: 1864 A, 1100 kW 200-460 V AC, 230 V AC spring-type terminals!!! Phased-out product!!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5558-2HA14<<","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":"630kW","at standard circuit at 50 °C rated value":"850hp","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 100kW","at inside-delta circuit at 50 °C rated value":"1 500hp","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":"200 ... 460V","contact rating of auxiliary contacts according to UL":"B300 / R300","Operating Voltage At Inside-Delta Circuit Rated Value":"200 ... 460V","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/b525ed4fd4d9412514f16b08d345de20.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=329118&mlfb=3RW4465-2BC44"},"ai":{"faq":[{"question":"What is the 3RW4465-2BC44 rated current at 40 °C?","answer":"The soft starter is rated 1 864 A at 40 °C (cite:), derating to 1 680 A at 50 °C (cite:) and 1 524 A at 60 °C (cite:). The derating temperature is 40 °C (cite:)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4465-2BC44","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/3RW4465-2BC44 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}}