{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK4353-3LR58-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK4353-3LR58-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3RK4353-3LR58-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK4353-3LR58-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK4353-3LR58-0BA0, MCU-controlled direct motor starter, 6.3 A rated operational current at AC-3/400 V, IP55, Trip Class 10, 340…440 V operating voltage.","salesMarkdown":"The 3RK4353-3LR58-0BA0 is a Siemens SIRIUS motor starter — an MCU-controlled direct starter with electromechanical switching contacts and bimetal motor protection. Supply voltage is 340…440 V AC, with the control voltage accepting 184…253 V at 50 Hz or 196…253 V at 60 Hz. The operating frequency range is 50/60 Hz, and the unit is rated for a minimum of 80 operations per hour. Ambient temperature during operation is -25 to +35 °C, so it is suited for unheated indoor enclosures but not for direct outdoor exposure without additional climate control. The IP55 enclosure means the unit is dust-protected and protected against water jets from any direction — suitable for installation in washdown areas or dusty industrial environments, though not for submersion or high-pressure spray. ## Communication and integration This starter has no onboard fieldbus communication — no PROFIBUS DP, no PROFINET, no AS-Interface protocol support. It carries one digital input for local control. If your line requires network integration, you will need to add an external gateway or use a different SIRIUS variant with the communication module. The unit is a standalone direct starter with short-circuit protection provided by upstream circuit-breakers. Dimensions are 182 mm wide, 220 mm high, and 145 mm deep — a compact footprint for a 6.3 A motor starter with integrated overload protection. The 3-pole main current circuit is designed for three-phase motor loads. No brake control output is included, so applications requiring DC or AC braking will need a separate brake controller.","metaTitle":"Siemens 3RK4353-3LR58-0BA0 SIRIUS Motor Starter, 6.3 A AC-3","metaDescription":"Siemens SIRIUS 3RK4353-3LR58-0BA0 motor starter, 6.3 A at AC-3/400 V, IP55, Trip Class 10. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"145 mm","Width":"182 mm","title":"3RK4353-3LR58-0BA0","Height":"220 mm","Trip Class":"CLASS 10","description":"SIRIUS MCU motor starter Enclosure degree of protection IP55 plastic Communication without electromechanically switching Short-circuit protection with circuit breaker DOL starter Brake without Performance class 6.3 A Motor circuit breaker with bi-metal thermal Manual operation latching Connection power M screw connection Electrical wholesale version","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":"6.3 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":"6.3 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":"2.2 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","maximum short-circuit current breaking capacity (Icu) at 400 V rated value":"50 000 A","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"4.5 ... 6.3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bca96858c5edc3f4044b183d50c99bef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=247528&mlfb=3RK4353-3LR58-0BA0"},"ai":{"faq":[{"question":"Is 3RK4353-3LR58-0BA0 compatible with PROFIBUS or PROFINET?","answer":"No. This starter has no PROFIBUS DP, no PROFINET, and no AS-Interface protocol support. It is a standalone unit with one digital input for local control."},{"question":"Where can I buy 3RK4353-3LR58-0BA0 available via RFQ confirmation?","answer":"This part is sourced to order against your RFQ. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK4353-3LR58-0BA0","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/3RK4353-3LR58-0BA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}