{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S283-K50W","brand":"ABB","brandSlug":"abb","productSlug":"S283-K50W","canonicalUrl":"https://aoctrl.com/abb/S283-K50W","factsUrl":"https://aoctrl.com/api/mcp/products/S283-K50W","rawCanonicalId":null},"summary":{"shortDescription":"ABB S283-K50W, S280 series, 3-pole miniature circuit breaker, 50 A, Trip Curve K, 480Y/277 VAC, 10 kA interrupting capacity, DIN rail mount.","salesMarkdown":"It is designed for DIN rail mounting in distribution panels and industrial control enclosures, protecting branch circuits against overloads and short circuits. Rated at 480Y/277 VAC with a 10 kA interrupting capacity, the S283-K50W can safely clear fault currents up to 10,000 A at that voltage level, which covers most commercial and light industrial panelboard applications. Unit depth is 68 mm, so it fits flush in a standard distribution board without protruding beyond the cover. Accepts conductor sizes from 18 AWG to 2 AWG. The thermal-magnetic trip mechanism provides both overload protection (thermal element) and short-circuit protection (magnetic element), with the K-curve magnetic trip set at 10–14× rated current — appropriate for motor starting inrush without nuisance tripping.","metaTitle":"ABB S283-K50W Mini Circuit Breaker, 3 Pole, 50 A, Curve K","metaDescription":"ABB S283-K50W miniature circuit breaker, 3-pole, 50 A, Trip Curve K, 10 kA interrupting capacity, DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"50","Type":"Trip Curve K","Poles":"3","title":"S283-K50W","Mounting":"DIN Rail","description":"Mini Circuit Breaker S280 3p K50a 48vac Rt|Mini Circuit Breaker S280 3p K50a 48vac RtABB S283-K50W, 3 Pole, 50 Amps Rated At 480y/277 Vac, Ul 1077 Series Miniature Circuit Breakerwith Thermal-magnetic Trip Device, K Trip Curve, And 10ka Interrupt Current Rating Apacity: Conductor: 18 - 2 Awg; Mounting: Din Rail: 35 Mm Length, 68 Mm Depth Of Unit Per Din 43880","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/41fd762ddc76e53574a88064148f9b8c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy S283-K50W and how do I get a price?","answer":"The S283-K50W is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is S283-K50W's listed amps (50) on this component line?","answer":"The S283-K50W is rated at 50 A continuous current, 3-pole configuration, with a Trip Curve K characteristic."},{"question":"What is S283-K50W's listed type (Trip Curve K) on this component line?","answer":"The S283-K50W uses a Trip Curve K, which means its magnetic trip threshold is set at 10–14× rated current — designed for motor, transformer, and inductive loads where higher inrush tolerance is needed."},{"question":"What compliance documentation does this brand provide for S283-K50W (RoHS, REACH, UL, IEC)?","answer":"The S283-K50W carries a UL 1077 listing as a supplementary protector, and is part of the ABB S280 series which typically includes CE marking. Specific RoHS/REACH declarations are available from ABB upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S283-K50W","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/S283-K50W 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}}