{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6416-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6416-6","canonicalUrl":"https://aoctrl.com/siemens/5SJ6416-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6416-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ6, miniature circuit breaker, 4-pole, B characteristic, 16 A AC, 400 V AC, 6 kA breaking capacity per EN 60898, IP20, halogen-free, silicon-free.","salesMarkdown":"## What this 4-pole B-curve MCB does in the panel The Siemens SENTRON 5SJ6416-6 is a 4-pole miniature circuit breaker rated for 16 A at 400 V AC, with a B tripping characteristic that trips between 3 and 5 times rated current — the standard choice for resistive and general-purpose loads where nuisance tripping from inrush is unlikely. Its 6 kA breaking capacity per EN 60898 (also rated 6 kA per IEC 60947-2) means it can safely interrupt a fault current up to that level on a 400 V three-phase supply, which covers most commercial and light industrial sub-distribution boards. Lifecycle stage is current; this is the active catalog number for new builds and spares. ## Terminal capacity and wiring constraints ## Environmental and compliance specs that matter for spares holding Rated insulation voltage is 440 V AC, overvoltage category 3. Mechanical service life is 20,000 switching cycles typical. The 5SJ6416-6 is the 4-pole version of the same 16 A B-curve breaker. The 2-pole sibling 5SJ6216-6 shares the same current rating, breaking capacity, tripping characteristic, terminal range, and environmental specs — the only difference is pole count and width (2 width units vs 4). If a panel was specified around the 2-pole variant, the 4-pole will drop into the same DIN rail but occupies double the width and requires the neutral and L3 connections to be wired. No rewiring of the existing 2-pole circuit is possible without adding the extra poles.","metaTitle":"Siemens SENTRON 5SJ6416-6 MCB, 4-Pole, B Curve, 16 A, 6 kA","metaDescription":"Siemens SENTRON 5SJ6416-6 miniature circuit breaker, 4-pole, B characteristic, 16 A rated current, 6 kA breaking capacity per EN 60898. Halogen-free, silicon-free. Quoted to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Solid":"0.75 ... 25 mm²","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"4","Type of voltage":"AC/DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-20 ... +45 °C","Product designation":"Miniature circuit breakers","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"Miniature circuit breaker 5SJ6","Energy limiting class":"3","Number of width units":"4","Number of poles / Note":"4","circuit-breaker / Design":"5SJ6","Current / at AC / rated value":"16 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","Insulation voltage / at AC / rated value":"440 V","Vibration resistance / acc. to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 10 to 150 Hz","with multi-phase operation / at AC / maximum":"440 V","Mechanical service life (switching cycles) / typical":"20 000"}},"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=215017&mlfb=5SJ6416-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ6416-6/alternatives.json"},"ai":{"faq":[{"question":"What conductor sizes does 5SJ6416-6 accept?","answer":"Solid conductors from 0.75 mm² to 25 mm², and stranded conductors in the same range."},{"question":"Will 5SJ6416-6 drop into a panel specified for 5SJ6216-6?","answer":"Both mount on the same DIN rail, but the 4-pole variant occupies 4 width units instead of 2 and requires wiring for all four poles. The 2-pole circuit cannot be directly replaced without adding the extra poles and space."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6416-6","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/5SJ6416-6 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}}