{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT10351AK600ST0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT10351AK600ST0","canonicalUrl":"https://aoctrl.com/siemens/3RT10351AK600ST0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT10351AK600ST0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT10351AK600ST0, Contactor S2 40A 120VAC 3P, AC-3 18.5 kW/400V, screw connection, modified shunt ring.","salesMarkdown":"## What This Contactor Does in the Panel The Siemens 3RT10351AK600ST0 is a SIRIUS S2 contactor rated 40 A at 120 VAC coil, three-pole, with screw terminals and a modified shunt ring. The 120 VAC coil (110 V 50 Hz / 120 V 60 Hz) is a common control voltage, so it slots into existing transformer-based control circuits without a separate DC supply. Screw terminals accept stranded or solid copper — torque to the manufacturer spec for the 40 A rating. The modified shunt ring reduces inrush on the coil, which matters if the control transformer is already loaded near its VA rating. Verify the free-wheel diode or RC snubber polarity on any auxiliary contacts sharing the same coil circuit.","metaTitle":"Siemens 3RT10351AK600ST0 Contactor S2 40A 120VAC 3P, AC-3 18","metaDescription":"Siemens SIRIUS 3RT10351AK600ST0 contactor, 40A, 120VAC coil, 3-pole, AC-3 18.5 kW/400V. Lifecycle stage current. Sourced to order. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT10351AK600ST0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RT10351AK600ST0 and get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, not a stock count here."},{"question":"What is the AC-3 rating on this contactor?","answer":"AC-3 duty is 18.5 kW at 400 V, which covers three-phase squirrel-cage motors — the standard rating for starting and stopping running motors, not just switching them off unloaded."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT10351AK600ST0","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/3RT10351AK600ST0 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}}