{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203-D13","brand":"ABB","brandSlug":"abb","productSlug":"S203-D13","canonicalUrl":"https://aoctrl.com/abb/S203-D13","factsUrl":"https://aoctrl.com/api/mcp/products/S203-D13","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203-D13, 3-pole miniature circuit breaker, 10 A rated, Trip Curve D, 277 V AC, 10 kA interrupting capacity, DIN Rail mount.","salesMarkdown":"The ABB S203-D13 is a 3-pole miniature circuit breaker rated at 10 A with a Trip Curve D characteristic, meaning it is designed to tolerate high inrush currents — typically 10 to 20 times the rated current — before tripping magnetically. This makes it the right choice for loads with a heavy starting surge, such as motors, transformers, or discharge lighting, where a Curve C breaker would nuisance-trip on startup. For a panel builder, that translates to faster assembly and easier rework: pull the clip, slide it off, replace it. The 3-pole configuration covers three-phase circuits; if you are protecting a single-phase branch, you would use a 1-pole variant from the same S200 series. ## Deployment context The 3-pole format occupies three module widths (about 54 mm) on the rail. For a panel OEM or wireman, that is a known footprint — no surprises when laying out the gland plate or calculating fill factor. The thermal-magnetic trip device means no external trip unit or power supply needed; it is self-contained and ready to wire.","metaTitle":"ABB S203-D13 Miniature Circuit Breaker, 3-Pole, 10 A, Curve","metaDescription":"ABB S203-D13 3-pole MCB, 10 A, Trip Curve D, 277 V AC, 10 kA interrupting capacity. UL 1077 listed. Current lifecycle stage. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"10","Type":"Trip Curve D","Poles":"3","title":"S203-D13","Mounting":"DIN Rail","Volts AC":"277","description":"Mini Circuit Breaker 3 Pole D 10 Amp 480y/277 Supp|3 Pole, 10 Amp Rated At 480y/277 Vac, Ul 1077 Series Miniature Circuit Breaker With Thermal-magnetic Trip Device","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.23","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/af829ba3cf4f3b9edf4768d09ad82e92.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is S203-D13's listed amps and trip curve?","answer":"The S203-D13 is rated at 10 A with a Trip Curve D characteristic, designed for loads with high inrush currents like motors and transformers."},{"question":"Will S203-D13 drop into a panel specified around S203-C8 without rewiring?","answer":"Yes, the S203-D13 and S203-C8 share the same 3-pole DIN Rail footprint, terminal layout, and voltage rating, so a direct swap is mechanically possible — but verify the ampacity and coordination study first, as the D13's 10 A rating and wider magnetic trip band may change the protection scheme."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203-D13","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/S203-D13 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}}