{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA1215-0JA15-1BW4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA1215-0JA15-1BW4","canonicalUrl":"https://aoctrl.com/siemens/3RA1215-0JA15-1BW4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA1215-0JA15-1BW4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA1215-0JA15-1BW4, reversing combination starter, IEC, frame size S00, 0.7-1 A, 24 VAC control voltage, with MSP auxiliary and auxiliary contacts.","salesMarkdown":"The Siemens 3RA1215-0JA15-1BW4 is a reversing combination starter in the SIRIUS family, frame size S00, built to IEC standards. It integrates a reversing contactor pair with overload protection in one compact unit that mounts on a FastBus rail — the SIRIUS bus system that distributes control power and signals across multiple starters without individual wiring. Rated for 0.7-1 A, it handles small reversing motor loads — conveyors, gate drives, or any application where direction change is needed. It ships with an MSP auxiliary contact (1 SPDT, NO/NC) and an additional auxiliary contact (NO), so you get feedback and status signals without ordering separate add-on blocks. That saves a slot on the bus and one line item on the BOM. The FastBus system carries the control voltage bus along the rail, so all starters in a row share the same 24 VAC supply without daisy-chaining wires. The reversing pair is mechanically interlocked inside the housing, which prevents both contactors from closing simultaneously — a short-circuit hazard if they did. That interlock is factory-set; no external wiring or logic needed.","metaTitle":"Siemens 3RA1215-0JA15-1BW4 Reversing Combination Starter","metaDescription":"Siemens 3RA1215-0JA15-1BW4 reversing combination starter, IEC SIRIUS frame S00, 0.7-1A, 24 VAC control. Includes MSP aux and auxiliary contacts.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"lifecycle_stage":"current"}},"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=133598&mlfb=3RA1215-0JA15-1BW4","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA1215-0JA15-1BW4/alternatives.json"},"ai":{"faq":[{"question":"Is 3RA1215-0JA15-1BW4 a reversing starter?","answer":"Yes, it is a reversing combination starter. It contains two contactors with a mechanical interlock to reverse a three-phase motor, plus an overload relay, all in one housing."},{"question":"Does 3RA1215-0JA15-1BW4 include auxiliary contacts?","answer":"Yes. It includes one MSP auxiliary contact (1 SPDT, NO/NC) and one additional auxiliary contact (NO)."},{"question":"What is the frame size of Siemens 3RA1215-0JA15-1BW4?","answer":"The frame size is S00, the smallest SIRIUS frame. It is rated for 0.7-1 A motor loads."},{"question":"Where can I buy 3RA1215-0JA15-1BW4 and how do I get a price?","answer":"We source this current-production part to order. Submit an RFQ through this page and we confirm availability and current pricing at quote time — no commitment to ask."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA1215-0JA15-1BW4","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/3RA1215-0JA15-1BW4 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}}