{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803S-D80","brand":"ABB","brandSlug":"abb","productSlug":"S803S-D80","canonicalUrl":"https://aoctrl.com/abb/S803S-D80","factsUrl":"https://aoctrl.com/api/mcp/products/S803S-D80","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800S series, S803S-D80 MCB, 3-pole, Trip Curve D, 80 A, 50 kA interrupting capacity at 230 VAC, DIN rail mount.","salesMarkdown":"## What this MCB is and what the ratings mean for fit The ABB S803S-D80 is a 3-pole miniature circuit breaker from the S800S series, rated 80 A with a Trip Curve D characteristic. That D-curve means it tolerates the high inrush currents typical of motor loads, transformers, and welding equipment — the magnetic trip threshold sits at 10 to 20 times rated current, so you won't get nuisance tripping when a pump or compressor starts. The 50 kA interrupting capacity at 230 VAC tells you it can safely clear a bolted fault up to that level without welding its contacts or cascading upstream — a figure that matters when you're coordinating selectivity in a panel feeding multiple motor starters. Mounting is standard DIN rail, so it drops into the same footprint as the older S200 or S500 series breakers you might be replacing. No need to gut the whole line — pull the old unit, clip this one on, and re-terminate. The 3-pole configuration covers three-phase circuits, which is the norm for motor branch circuits in industrial control panels. ## Where it fits in the panel This breaker lives on a DIN rail inside a distribution board or motor control center. The S800S series is ABB's high-performance MCB line, so you're getting a compact package that handles fault levels that would melt a standard domestic MCB. If you're retrofitting an older panel that had an S500 or S200 series breaker at this amp rating, check the busbar pitch — the S800S footprint is the same 3-module width per pole, so the mechanical fit is usually a straight swap.","metaTitle":"ABB S803S-D80 MCB, 3P D 80A, 50 kA","metaDescription":"ABB S803S-D80 S800S MCB, 3-pole, Trip Curve D, 80 A, 50 kA interrupting capacity at 230 VAC. DIN rail mount, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Amps":"80","Type":"Trip Curve D","Poles":"3","Mounting":"DIN Rail","Volts AC":"230","lifecycle_stage":"current","Interrupt Rating AC":"50 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/25d858c66ecb6387996362724b9696d7.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S803S-D80/alternatives.json"},"ai":{"faq":[{"question":"What does the Trip Curve D rating mean for motor loads?","answer":"Trip Curve D means the magnetic trip operates at 10 to 20 times the rated current (800 to 1600 A for this 80 A breaker). That delay lets motor starting currents pass without tripping, while still clearing hard faults quickly."},{"question":"Where can I buy the S803S-D80?","answer":"This part 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 the interrupting rating of the S803S-D80?","answer":"The S803S-D80 has a 50 kA interrupting capacity at 230 VAC, meaning it can safely interrupt fault currents up to 50,000 amps without failing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803S-D80","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/S803S-D80 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}}