{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1346-6FP16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1346-6FP16","canonicalUrl":"https://aoctrl.com/siemens/5SU1346-6FP16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1346-6FP16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 4-pole, B-curve, 16 A rated, 6 kA breaking capacity, 72 mm wide, instantaneous design.","salesMarkdown":"Rated 16 A at 30 °C, it derates to 12.5 A at 70 °C — that thermal curve matters if this lands in a crowded, warm panel. The 72 mm width occupies 4 modular-width units on a DIN rail. ## Where it goes — panel integration and environment Supply can feed from either top or bottom — handy when you're retrofitting into an existing busbar arrangement and can't flip the board. ## What the spec table doesn't tell you — the so-what on key ratings The 6 kA breaking capacity is the same under both EN 60898 (the MCB standard) and IEC 60947-2 (the industrial circuit-breaker standard). That dual rating means it's tested to both installation and industrial coordination rules — not all RCBOs carry both. The insulation voltage Ui of 500 V and surge voltage resistance of 4 kV give headroom for 400 V AC networks with reasonable transient immunity. The 0.25 kA surge current withstand at 8/20 μs is the impulse rating for the residual-current electronics — it tells you the internal electronics can ride through a lightning-induced surge on the line side without latching or failing.","metaTitle":"Siemens 5SU1346-6FP16 SENTRON RCBO, 4P, B-16A, 6kA","metaDescription":"Siemens SENTRON 5SU1346-6FP16 RCBO, 4-pole, B-curve 16 A, 6 kA breaking capacity per EN 60898. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"72 mm","Width":"72 mm","title":"5SU1346-6FP16","Height":"85 mm","Maximum":"70 °C","Minimum":"-40 °C","description":"RCBO, 6 kA, 4P Type A, 30 mA, B-Char, In: 16A Un: 400V","Halogen-Free":"No","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Operating Frequency":"50 Hz","Product Designation":"RCBO","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Weight With Packaging":"574 g","at 30 °C rated value":"16 A","at 40 °C rated value":"15.2 A","at 45 °C rated value":"14.8 A","at 50 °C rated value":"14.3 A","at 55 °C rated value":"13.9 A","at 60 °C rated value":"13.4 A","at 70 °C rated value":"12.5 A","Energy Limitation Class":"3","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"B","Number Of Poles With Protection":"4","according to EN 60898 rated value":"6 kA","insulation voltage (Ui) rated value":"500 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"6 kA","Surge Current Resistance At (8/20) μS":"0.25 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating Cycles) Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e2e6ddacb60a42cb10c149ae3a30b8e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1438054&mlfb=5SU1346-6FP16"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SU1346-6FP16?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ through the storefront; the part is sourced through independent distribution and quoted to order."},{"question":"What is the depth of 5SU1346-6FP16?","answer":"The depth is 72 mm, with an installation depth of 70 mm. The width is also 72 mm at 4 modular units."},{"question":"What compliance documentation does this RCBO carry?","answer":"The 5SU1346-6FP16 is rated per EN 60898 and IEC 60947-2, with overvoltage category III and pollution degree 3. The evidence does not list RoHS, REACH, or UL marks specifically — verify with the manufacturer for full compliance declarations."},{"question":"Will 5SU1346-6FP16 drop into a panel specified around 5SU9354-7KK16 without rewiring?","answer":"Both are 4-pole SENTRON RCBOs on a 72 mm (4 MW) DIN-rail footprint, so the mechanical fit and busbar pitch are the same. The 5SU1346-6FP16 is a B-curve 16 A unit; the 5SU9354-7KK16 is a different variant — verify the tripping curve and rating match your circuit before swapping. No wiring changes needed if the ratings align."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1346-6FP16","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/5SU1346-6FP16 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}}