{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL1216-6MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL1216-6MB","canonicalUrl":"https://aoctrl.com/siemens/5SL1216-6MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL1216-6MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL1216-6MB, 2-pole miniature circuit breaker, B-curve, 16 A rated, 230/400 V AC, 3 kA breaking capacity per IEC 60947-2, 2 MW, IP20 with conductors.","salesMarkdown":"## Siemens SENTRON 5SL1216-6MB — 2-pole B-curve MCB, 16 A, 3 kA The Siemens 5SL1216-6MB is a SENTRON miniature circuit breaker (MCB) rated 16 A at 230/400 V AC, with a B tripping characteristic and a 3 kA breaking capacity per IEC 60947-2. ## Voltage, frequency, and DC capability Rated for 50/60 Hz supply. Single-phase operation at 253 V AC; multi-phase at 440 V AC maximum. It also carries a DC rating of 72 V maximum — useful for control circuits or battery-backed loads in the same enclosure, though the 3 kA breaking capacity at DC should be verified against the specific DC fault current available. Overall dimensions: 90 mm tall, 76 mm deep, 36 mm wide (2 MW). Installation depth is 70 mm — the extra 6 mm accounts for the terminal screws and outgoing cable bend radius. Sealable, halogen-free, silicon-free construction — relevant for environments where outgassing or silicone contamination affects contacts or optics. ## How it sits against the wider SENTRON range Compared to the 5SL4363-7 (3-pole, C-curve, 63 A, 10 kA), the 5SL1216-6MB is a lighter-duty residential/infrastructure breaker — lower current, lower fault-interrupt rating, and a B-curve that trips faster on modest overloads. The 5SL6016-7 (1P+N, C-curve, 16 A, 6 kA) is the single-phase compact sibling; it also switches the neutral but fits in one MW (18 mm). The 5SL1216-6MB gives you two independently protected poles in a 2-MW footprint — no shared neutral, full isolation on both lines.","metaTitle":"Siemens 5SL1216-6MB SENTRON MCB, 2P, B-Curve, 16A, 3kA","metaDescription":"Siemens SENTRON 5SL1216-6MB miniature circuit breaker, 2-pole, B-curve, 16A, 230/400V AC, 3kA breaking capacity per IEC 60947-2. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL1216-6MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 230/400V 3kA, 2pole, B, 16A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","supply voltage at AC rated value":"230 V","according to IEC 60947-2 rated value":"3 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"253 V","Mechanical Service Life (Operating Cycles) Typical":"4 000","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5d32e3933d5a7a3fb83f4005405562ab.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1046725&mlfb=5SL1216-6MB"},"ai":{"faq":[{"question":"Where can I buy the 5SL1216-6MB and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a static listing."},{"question":"What is the depth of the 5SL1216-6MB?","answer":"76 mm overall depth; 70 mm installation depth behind the panel face."},{"question":"What is the width of the 5SL1216-6MB?","answer":"36 mm wide — that is 2 modular width units (MW) on a standard DIN rail."},{"question":"Will the 5SL1216-6MB fit into a panel originally specified for the 5SL4363-7?","answer":"The 5SL1216-6MB is 36 mm wide (2 MW) versus the 5SL4363-7 at 54 mm (3 MW). It will physically snap onto the same DIN rail but leaves a 1-MW gap unless filler pieces are used. Height (90 mm) and depth (76 mm) are identical, so no enclosure-depth conflict. Rewiring is required because the pole count and terminal layout differ."},{"question":"What compliance documentation does Siemens provide for the 5SL1216-6MB?","answer":"The SENTRON series is designed to IEC 60947-2 and EN 60898 standards. The 5SL1216-6MB is halogen-free and silicon-free. Specific RoHS, REACH, and UL documentation should be requested at quote time — the evidence does not list individual certs for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL1216-6MB","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/5SL1216-6MB 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}}