{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL1213-6MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL1213-6MB","canonicalUrl":"https://aoctrl.com/siemens/5SL1213-6MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL1213-6MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL miniature circuit breaker, 2-pole, B characteristic, 13 A rated current, 3 kA breaking capacity per IEC 60947-2, 230/400 V AC, order code 5SL1213-6MB.","salesMarkdown":"The 2-pole (2P) form factor switches both phase and neutral — no neutral pole switching here, so the neutral is switched together with the line. Rated 230/400 V AC, it handles single-phase circuits at 253 V and multi-phase up to 440 V. ## B-curve and breaking capacity — what they mean on the line It avoids nuisance trips on small motor starts or capacitive loads that a C-curve would handle, but for this 13 A rating the B curve is correct for its intended duty in residential and infrastructure panels. The 3 kA rating is common for domestic-grade MCBs; industrial panels typically spec 6 kA or 10 kA. Accepts solid or stranded conductors from 0.75 mm² up to 25 mm², which covers everything from 1.5 mm² lighting circuits up to 6 mm² feeder tails. Terminal torque spec is 2.5–3 N·m — use a torque screwdriver to avoid loose connections that generate heat under load. Mounts in any position, so it works in horizontal busbar panels or vertical distribution boards. Sealable — you can lock the toggle position to prevent unauthorized switching.","metaTitle":"Siemens 5SL1213-6MB SENTRON MCB, 2P B 13A 3kA","metaDescription":"Siemens 5SL1213-6MB SENTRON miniature circuit breaker, 2-pole, B-curve, 13 A, 3 kA breaking capacity per IEC 60947-2. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"36 mm","title":"5SL1213-6MB","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"Circuit breaker 230/400V 3kA, 2pole, B, 13A","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +45 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +75 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"III","Design of the product":"5SL miniature circuit breakers","Number of width units":"2","Number of poles / Note":"2P","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"13 A","Tripping characteristic class":"B","at DC / rated value / maximum":"125 V","acc. to IEC 60947-2 / rated value":"3 kA","Product feature / Touch protection":"No","Supply voltage / at AC / rated value":"230 V","with multi-phase operation / at AC / maximum":"440 V","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"253 V","Mechanical service life (switching cycles) / typical":"4 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b0675c4ee441f077334e9db7b5a9fa41.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1046723&mlfb=5SL1213-6MB"},"ai":{"faq":[{"question":"What is the 5SL1213-6MB's breaking capacity?","answer":"It is rated 3 kA per IEC 60947-2 at 400 V AC. This is the maximum fault current it can safely interrupt."},{"question":"Where can I buy the 5SL1213-6MB?","answer":"We source this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What wire sizes does the 5SL1213-6MB accept?","answer":"It accepts solid or stranded conductors from 0.75 mm² up to 25 mm². Terminal torque should be set to 2.5–3 N·m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL1213-6MB","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/5SL1213-6MB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}