{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S401M-C16","brand":"ABB","brandSlug":"abb","productSlug":"S401M-C16","canonicalUrl":"https://aoctrl.com/abb/S401M-C16","factsUrl":"https://aoctrl.com/api/mcp/products/S401M-C16","rawCanonicalId":null},"summary":{"shortDescription":"ABB S400 series SMISSLN MCB, S401M-C16, 1-pole 16 A Trip Curve C, 240 VAC, 10 kA interrupting capacity, DIN rail mount.","salesMarkdown":"The ABB S401M-C16 is a 1-pole miniature circuit breaker from the S400 SMISSLN family, rated 16 A with Trip Curve C characteristics at 240 VAC. The DIN-rail footprint snaps into standard distribution boards or subpanels, and the SMISSLN design allows busbar connection without dedicated tools. The 16 A thermal element protects the branch circuit under sustained overload. One pole, so it switches the live conductor only; neutral must be common or separately protected. ## Integration note The S400 series uses a shared busbar system — order the appropriate pin spacing for multi-pole grouping. Terminal capacity accepts up to 25 mm² conductor; strip length 12–14 mm for cage-clamp termination. No auxiliary contact slot on this 1-pole base; remote status indication requires an external shunt trip or auxiliary module wired separately.","metaTitle":"ABB S401M-C16 MCB, 1P 16A Curve C, 10 kA","metaDescription":"ABB S401M-C16 SMISSLN MCB, 1-pole, 16 A, Trip Curve C, 240 VAC, 10 kA interrupting capacity. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Amps":"16","Type":"Trip Curve C","Poles":"1","title":"S401M-C16","Mounting":"DIN Rail","Volts AC":"240","description":"ABB S401M-C16 SMISSLN MCB IEC 1P 16|ABB S401MC16 SMISSLN MCB IEC","Family / Style":"S400","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a2cc82453005e09077e6a51e9718febf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy S401M-C16 and get a price?","answer":"The S401M-C16 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting rating of S401M-C16?","answer":"The S401M-C16 has a 10 kA interrupting capacity at 240 VAC, meaning it safely clears faults up to that level without contact welding."},{"question":"What does Trip Curve C mean on this breaker?","answer":"Trip Curve C means the magnetic trip operates at 5–10× rated current (80–160 A instantaneous), making it suitable for moderate inrush loads like small motors and lighting ballasts."},{"question":"Will S401M-C16 drop into a panel specified for S201MUC-K2?","answer":"Both mount on 35 mm DIN rail, but the S201MUC-K2 is a 2 A Trip Curve K breaker rated at 277 VAC with 6 kA interrupting capacity — different rating and trip characteristic, so direct substitution without rewiring and coordination review is not recommended."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S401M-C16","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/S401M-C16 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}}