{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB1246-1QG30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB1246-1QG30","canonicalUrl":"https://aoctrl.com/siemens/3RB1246-1QG30","factsUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RB1246-1QG30 overload relay, discontinued, 6.3-25 A, size S00/S0, Class 5-30, screw terminals, 110-120 VAC 50/60 Hz.","salesMarkdown":"The 3RB1246-1QG30: The 6.3-25 A range sets the motor FLA it can protect — set the dial to match the nameplate. Class 5-30 means the trip curve is adjustable from fast (Class 5, for short thermal time constants) to slow (Class 30, for high-inertia loads like fans or centrifuges). The integrated ground-fault detection is a step up from a basic bimetallic relay; it watches for leakage to ground and trips the monostable output. Manual-automatic-remote reset gives flexibility: leave it on auto for an unattended line, or force manual reset after a fault for a safety check. The overload warning output lets a PLC log an approaching trip before it happens. ## Integration notes Individual mount — it clips onto the S00/S0 contactor or a DIN rail. Screw terminals on the aux circuit; the main circuit uses a current transformer, so no direct pass-through bus bars. Wires up clean if you keep the CT wiring separate from the aux control wiring to avoid induced noise on the 110-120 VAC coil circuit.","metaTitle":"Siemens 3RB1246-1QG30 Overload Relay, 6.3-25 A, Discontinued","metaDescription":"Siemens 3RB1246-1QG30 overload relay, 6.3-25 A, size S00/S0, 110-120 VAC. Discontinued product sourced to order. RFQ for last-time buy or alternative.","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=456623&mlfb=3RB1246-1QG30","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB1246-1QG30/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3RB1246-1QG30?","answer":"It is an overload relay rated 6.3-25 A for full motor protection, size S00/S0, Class 5-30 trip curve. Main circuit uses a current transformer; aux circuit uses screw terminals. Coil voltage is 110-120 VAC, 50/60 Hz. Features include manual-automatic-remote reset, integrated ground-fault detection, monostable outputs, and an overload warning output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB1246-1QG30","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/3RB1246-1QG30 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}}