{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB1246-1QG00-0FM0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB1246-1QG00-0FM0","canonicalUrl":"https://aoctrl.com/siemens/3RB1246-1QG00-0FM0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG00-0FM0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RB1246-1QG00-0FM0 solid-state overload relay, 6.3-25A, AC 110-120V 50/60Hz, with integrated thermistor protection and ground fault monitoring via external summation CT.","salesMarkdown":"The Siemens 3RB1246-1QG00-0FM0 is a solid-state overload relay with integrated thermistor motor protection, rated 6.3...25 A at AC 110...120 V 50/60 Hz. It adds ground fault monitoring through the connection of an external summation current transformer, giving you three protective functions in one DIN-rail mount: overcurrent, thermistor overtemperature, and ground fault. The 6.3...25 A adjustable range covers most small-to-mid motor loads — think conveyors, pumps, and fans up to about 11 kW at 400 V. The 110...120 V AC control supply ties it to standard North American control voltages; if your panel runs 24 VDC or 230 V, this relay won't pick up. The ground fault monitoring path requires an external summation CT (not included), so factor that into your BOM. Outputs are 1 NO + 1 NC for the overcurrent/thermistor channel and a separate 1 NO + 1 NC for ground fault — both monostable, meaning they drop out on power loss. That's a fail-safe arrangement typical for safety-related motor circuits.","metaTitle":"3RB1246-1QG00-0FM0 Overload Relay, Solid State, 6.3-25A","metaDescription":"3RB1246-1QG00-0FM0 solid-state overload relay with integrated thermistor protection. 6.3-25A, AC 110-120V, ground fault monitoring. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"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=467929&mlfb=3RB1246-1QG00-0FM0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG00-0FM0/alternatives.json"},"ai":{"faq":[{"question":"What is the adjustable current range on 3RB1246-1QG00-0FM0?","answer":"The adjustable current range is 6.3...25 A, suited for motor protection in that full-load amp window."},{"question":"Where can I buy 3RB1246-1QG00-0FM0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does 3RB1246-1QG00-0FM0 include ground fault protection?","answer":"Yes, it monitors ground faults through the connection of an external summation current transformer (not included), with separate 1 NO + 1 NC monostable outputs for the ground fault channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB1246-1QG00-0FM0","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/3RB1246-1QG00-0FM0 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}}