{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM1312-6BA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM1312-6BA","canonicalUrl":"https://aoctrl.com/siemens/5SM1312-6BA","factsUrl":"https://aoctrl.com/api/mcp/products/5SM1312-6BA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens FI Protector Type A (PSE/SSF), 5SM1312-6BA, 25A 2-pole, 30mA, 230V, 2TE, D=55mm.","salesMarkdown":"The Siemens 5SM1312-6BA is a Type A residual current device (FI protector) rated 25A, 2-pole, with a 30mA trip threshold at 230V, in a 2-module (2TE) wide housing. At 25A it's sized for branch circuits feeding a single machine or a small sub-panel; the 30mA sensitivity covers personnel protection (shock) and fire prevention on that branch. ## Integration The 2TE (2-module) width fits standard DIN-rail enclosures — occupies the same slot as a 2-pole MCB. The D=55mm dimension is the depth from the DIN rail mounting surface to the front face; verify clearance against your enclosure depth, especially if busbars or wiring ducts sit behind the device. The Type A (PSE/SSF) marking indicates it meets the selective / short-time-delayed characteristic for coordination with downstream RCDs.","metaTitle":"Siemens 5SM1312-6BA FI Protector Type A, 25A 2-Pole 30mA 230","metaDescription":"Siemens 5SM1312-6BA FI Protector Type A (PSE/SSF), 25A 2-pole, 30mA, 230V, 2TE. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"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=510927&mlfb=5SM1312-6BA","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM1312-6BA/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM1312-6BA used for?","answer":"It's a Type A residual current device (FI protector) rated 25A, 2-pole, 30mA sensitivity at 230V. Use it for personnel and fire protection on branch circuits feeding electronics, rectifiers, or drives where pulsating DC fault currents may occur."},{"question":"Where can I buy the 5SM1312-6BA?","answer":"The 5SM1312-6BA is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM1312-6BA","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/5SM1312-6BA 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}}