{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203-C32NA","brand":"ABB","brandSlug":"abb","productSlug":"S203-C32NA","canonicalUrl":"https://aoctrl.com/abb/S203-C32NA","factsUrl":"https://aoctrl.com/api/mcp/products/S203-C32NA","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203-C32NA miniature circuit breaker, 4-pole, 32 A, Trip Curve C, 277 VAC, 10 kA interrupting rating, DIN rail mount.","salesMarkdown":"The S203-C32NA is a 4-pole miniature circuit breaker from ABB's S200 series, rated 32 A with a Trip Curve C characteristic. It interrupts fault currents up to 10 kA at 277 VAC, sized for general-purpose branch-circuit protection in DIN-rail panels. The C-curve trips between 5 and 10 times rated current, so it handles moderate inrush from motor starters and lighting ballasts without nuisance tripping — a common choice for mixed resistive and inductive loads in commercial and light industrial distribution boards. ## Panel fit Snap-on DIN rail mounting, 4-pole width (72 mm at 18 mm per pole). Occupies the same footprint as any S200-series 4P breaker — no special busbar or adapter needed for standard distribution boards.","metaTitle":"S203-C32NA 32A 4P MCB, Trip Curve C, DIN Rail","metaDescription":"S203-C32NA miniature circuit breaker, 32 A, 4-pole, Trip Curve C, 10 kA interrupting at 277 VAC. DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Amps":"32","Type":"Trip Curve C","Poles":"4","title":"S203-C32NA","Mounting":"DIN Rail","Volts AC":"277","description":"Miniature Circuit Breaker, 4P, 32A|Miniature Circuit Breaker, 4 Pole, 32 Amp","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/e589dc9a24c34cde3ebb5d34f217ae08.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy S203-C32NA and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, not a stock promise here."},{"question":"When sourcing S203-C32NA, what's the closest functional second-source — S204-B32?","answer":"The S204-B32 is the closest functional peer: same 32 A, 4-pole, DIN-rail footprint, and 10 kA interrupting rating, but with a Trip Curve B characteristic (3–5× In) instead of Curve C (5–10× In). It drops into the same panel without rewiring, but the B-curve trips faster on inrush — verify coordination with your load's starting current before substituting."},{"question":"What is S203-C32NA's listed amps (32) on this component line?","answer":"The continuous current rating is 32 A at 277 VAC, per the spec table."},{"question":"What is S203-C32NA's listed type (Trip Curve C) on this component line?","answer":"Trip Curve C means the magnetic trip operates between 5 and 10 times rated current (160–320 A for this 32 A breaker), suited for moderate inrush loads like small motors and lighting."},{"question":"Will S203-C32NA drop into a panel that was specified around S204-B32 without rewiring?","answer":"Yes — same 4-pole DIN-rail footprint, same 32 A rating, same 10 kA interrupting capacity at 277 VAC. The only difference is the trip curve (C vs B), which affects coordination with upstream devices. No rewiring needed."},{"question":"What compliance documentation does this brand provide for S203-C32NA (RoHS, REACH, UL, IEC)?","answer":"As an ABB S200-series MCB, the S203-C32NA is designed to meet IEC 60898-1 and typically carries CE marking. RoHS and REACH declarations are standard for current-production ABB components. Specific UL listing status should be confirmed on the unit's nameplate or via the manufacturer's declaration for the target jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203-C32NA","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-C32NA 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}}