{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803C-D32","brand":"ABB","brandSlug":"abb","productSlug":"S803C-D32","canonicalUrl":"https://aoctrl.com/abb/S803C-D32","factsUrl":"https://aoctrl.com/api/mcp/products/S803C-D32","rawCanonicalId":null},"summary":{"shortDescription":"ABB S803C-D32, miniature circuit breaker, 32 A, 3-pole, D trip curve, 230/400 VAC, 15 kA interrupting capacity, DIN rail mount.","salesMarkdown":"## 32 A, D-curve MCB for motor and transformer circuits Per the datasheet, interrupting capacity stands at 15 kA at 400 VAC and 10 kA at DC, giving selectivity headroom for sub-distribution boards with fault currents in that range. The 3-pole footprint occupies three modular units (17.5 mm per pole) — measure the available space before ordering, as a full 52.5 mm width is needed. Spring-cage terminals accept 1–25 mm² conductors; strip length of 12–14 mm avoids whiskers under the cage. No busbar bridging required for multi-pole connection; the internal link is factory-fitted. For selective coordination with downstream MCBs, the D-curve's higher magnetic threshold (10–20× In) provides better discrimination than a C-curve when feeding sub-circuits with motor loads. Verify the let-through energy (I²t) against upstream fuse or MCCB curves using the manufacturer's selectivity tables.","metaTitle":"S803C-D32 Miniature Circuit Breaker, 32A, 3-Pole, D Curve, 1","metaDescription":"S803C-D32 miniature circuit breaker, 32 A, 3-pole, D trip curve, 15 kA interrupting capacity at 400 VAC. DIN rail mount. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"32","Type":"Trip Curve D","Poles":"3","title":"S803C-D32","Mounting":"DIN Rail","Volts AC":"230","description":"Circuit Breaker, Miniature, DIN Rail Mount, 32A, 3P, 400VAC, D Trip|Circuit Breaker, Miniature, DIN Rail Mount, 32 Amp, 3 Pole, 230/400 Volt AC, D Trip, 15 kAIC","lifecycle_stage":"current","Interrupt Rating AC":"15 kA","Interrupt Rating DC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$105.41","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f28d43b77154644c2a5fe6d48b62b999.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will S803C-D32 drop into a panel specified around S203-D13?","answer":"The S803C-D32 is a 3-pole, 32 A D-curve MCB on a standard DIN-rail footprint. The S203-D13 is a 10 A D-curve MCB — same pole count and mounting, but lower amp rating and interrupting capacity (10 kA). If the panel was designed for the S203-D13's 10 A rating, the 32 A S803C-D32 will physically fit but will not provide the same overcurrent protection; the breaker must match the circuit's design current. No rewiring is needed for the mechanical fit, but the amp rating difference requires a circuit redesign."},{"question":"Where can I buy S803C-D32 and get current pricing?","answer":"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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803C-D32","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/S803C-D32 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}}