{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3816-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3816-3","canonicalUrl":"https://aoctrl.com/siemens/5SP3816-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3816-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SP3816-3, 3-pole, 16 A rated, 25 kA breaking capacity, E tripping characteristic, 4.5 MW, standard rail mount.","salesMarkdown":"The E characteristic means it's built for a delayed trip — it handles short inrush currents better than a B or C curve, which is useful for transformer or capacitive loads where you don't want nuisance trips on startup. Overvoltage category IV means it's rated for the main incoming supply — not just downstream sub-circuits — so it can be the first breaker after the utility meter. Temperature derating is published: 16 A at 30 °C, 15.2 A at 40 °C, 14.8 A at 45 °C, 14.4 A at 50 °C, 14 A at 55 °C. Wire range accepts 2.5 mm² minimum to 50 mm² maximum for both solid and stranded conductors — that's a wide range, letting you land anything from a small load circuit up to a main feeder. Saddle terminals and infeed at box terminal are standard, so wiring is straightforward with no special tools needed. IP40 with connected conductors — that's finger-safe for the front of the panel but not sealed against water ingress, so it belongs in an enclosure, not out in the weather. Depth is 76.3 mm, height 128 mm — standard MCB footprint, fits any DIN-rail enclosure with that clearance. The integrated locking slide accepts a padlock, wire seal, or cable tie for lockout/tagout, which is a nice touch for maintenance isolation without adding an external lockout hasp. Supply cord position is any — top or bottom feed works, no orientation restrictions. Shock rated at 30 g for 11 ms, so it holds up in high-vibration environments like near large contactors or in mobile equipment.","metaTitle":"Siemens SENTRON 5SP3816-3 Miniature Circuit Breaker, 16 A, 2","metaDescription":"Siemens SENTRON 5SP3816-3 miniature circuit breaker, 16 A rated, 25 kA breaking capacity, 3-pole, E characteristic. Current production. Sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76.3 mm","title":"5SP3816-3","Height":"128 mm","Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 3x 1-pole, E 16, 400V","Number Of Poles":"3","Solid / Maximum":"50 mm²","Solid / Minimum":"2.5 mm²","lifecycle_stage":"current","Fastening Method":"standard rail","Saddle Terminals":"Yes","Shock Resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product Brand Name":"SENTRON","Stranded / Maximum":"50 mm²","Stranded / Minimum":"2.5 mm²","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"16 A","protection class IP":"IP40, with connected conductors","Overvoltage Category":"IV","Design Of The Product":"Main miniature circuit breaker","Infeed At Box Terminal":"Yes","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","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":"14.4 A","at 55 °C / rated value":"14 A","Depth / Of The Enclosure":"76.3 mm","Suitability For Operation":"Residential buildings/infrastructure","Design Of The Locking Device":"Integrated locking slide, lockable by means of a lock, wire seal and cable ties","Number Of Modular Width Units":"4.5","Tripping Characteristic Class":"E","acc. to EN 60898 / rated value":"25 kA","Position / Of Power Supply Cord":"Any","Insulation Voltage / Rated Value":"690 V","supply voltage / at AC / rated value":"400 V","Surge Voltage Resistance / Rated Value":"6 kV","Fastening Method / Other Installation / Note":"On standard mounting rail 35 mm acc. to EN 60715","vibration resistance / acc. to IEC 60068-2-6":"2 g, 20 frequency cycles 5 to 150 to 15 Hz","Display Version / For Switch Position Indicator":"OFF = green, ON = red","Mechanical Service Life (Operating Cycles) / Typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a7b719a9d86f6508217602ec141cc299.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=299938&mlfb=5SP3816-3"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SP3816-3?","answer":"The 5SP3816-3 has a rated breaking capacity of 25 kA at 400 V per EN 60898, and a rated value of 25 kA."},{"question":"What does the E tripping characteristic mean?","answer":"The E characteristic provides a delayed trip curve, designed to handle short inrush currents from transformers or capacitive loads without nuisance tripping."},{"question":"Where can I buy 5SP3816-3 and how is it quoted?","answer":"The 5SP3816-3 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SP3816-3?","answer":"The 5SP3816-3 is designed to EN 60898 and carries an insulation voltage rating of 690 V. It is suitable for residential and infrastructure applications per the manufacturer's designation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3816-3","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/5SP3816-3 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}}