{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK4353-3DR58-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK4353-3DR58-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3RK4353-3DR58-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK4353-3DR58-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS direct motor starter, MCU controlled on site, 3RK4353-3DR58-0BA0, CLASS 10, 1.25 A AC-3 at 400 V, IP55.","salesMarkdown":"## Direct starter, MCU-controlled, IP55 — fits a washdown-adjacent panel The Siemens SIRIUS 3RK4353-3DR58-0BA0 is a direct motor starter with MCU-based control logic integrated on site — no separate PLC or fieldbus slice needed for the motor branch. It's rated AC-3 at 1.25 A on 400 V, which means it's sized for small three-phase induction motors up to roughly 0.5 kW under standard starting duty. No PROFINET or PROFIBUS onboard, so the control signal comes from a hardwired digital input; the single digital input handles the start/stop command. ## Supply and ambient — what the ratings actually govern The operating voltage range is 340 to 440 V AC, and the control supply is AC as well — 184 to 253 V at 50 Hz, 196 to 253 V at 60 Hz. That means it runs off a standard 230 V control transformer, not a 24 VDC bus. If your panel is all 24 VDC auxiliaries, this unit won't drop in without a separate AC supply. Ambient temperature is rated -25 to +35 °C during operation; above that, you'll need to derate or ventilate the enclosure. The bimetal motor protection element handles the thermal curve, and short-circuit backup is via circuit-breakers, not fuses — that's a panel-builder detail that affects the coordination study.","metaTitle":"Siemens SIRIUS 3RK4353-3DR58-0BA0 Motor Starter, CLASS 10","metaDescription":"Siemens SIRIUS 3RK4353-3DR58-0BA0 direct motor starter, MCU controlled on site. IP55, CLASS 10 trip, 1.25 A at 400 V AC-3. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"145 mm","Width":"182 mm","Height":"220 mm","Trip Class":"CLASS 10","Type Of Voltage":"AC","lifecycle_stage":"current","Bus Communication":"No","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","PROFINET protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"1","Product Designation":"motor starter MCU controlled on site","protection class IP":"IP55","PROFIBUS DP protocol":"No","at 50 Hz rated value":"184 ... 253 V","at 60 Hz rated value":"196 ... 253 V","Design Of The Product":"direct starter","Number Of Digital Inputs":"1","Short Circuit Protection":"Yes","at AC at 400 V rated value":"1.25 A","brake control with 24 V DC":"No","Operating Frequency Minimum":"80 1/h","brake control with 180 V DC":"No","brake control with 400 V AC":"No","brake control with 500 V DC":"No","Type Of The Motor Protection":"bimetal","at AC-3 at 400 V rated value":"1.25 A","Operating Voltage Rated Value":"340 ... 440 V","Substance Prohibitance (Date)":"05/01/2012","Design Of The Switching Contact":"electromechanical","Operating Frequency 1 Rated Value":"50 Hz","Operating Frequency 2 Rated Value":"60 Hz","Design Of Short-Circuit Protection":"circuit-breakers","Ambient Temperature During Operation":"-25 ... +35 °C","Product Component Motor Brake Output":"No","Type Of Voltage Of The Supply Voltage":"AC","reference code according to IEC 81346-2":"Q","Number Of Poles For Main Current Circuit":"3","with low demand rate according to SN 31920":"50 %","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","operating power at AC-3 at 400 V rated value":"0.4 kW","Product Extension Braking Module For Brake Control":"No","Relative Negative Tolerance Of The Operating Frequency":"-10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Supply Voltage Frequency For Auxiliary And Control Circuit Rated Value":"50 ... 60 Hz","breaking capacity maximum short-circuit current (Icu) at 400 V rated value":"50 000 A","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.9 ... 1.25 A"}},"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=402956&mlfb=3RK4353-3DR58-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK4353-3DR58-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3RK4353-3DR58-0BA0 work with PROFINET or PROFIBUS?","answer":"No. This starter has no PROFINET or PROFIBUS protocol support. Control is via the single hardwired digital input. If you need fieldbus integration, you'd look at a different SIRIUS variant with a communication module."},{"question":"What is the cross reference or equivalent for 3RK4353-3DR58-0BA0?","answer":"There is no official direct cross-reference from Siemens for this exact MCU-controlled direct starter. The peer 3RT1044-1FB46 is a different form factor (contactor-only, no integrated overload or MCU). For a like-for-like replacement, stick with this order code."},{"question":"Where can I buy 3RK4353-3DR58-0BA0 and what is the lead time?","answer":"This item is sourced to order. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK4353-3DR58-0BA0","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/3RK4353-3DR58-0BA0 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}}