{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203M-D10","brand":"ABB","brandSlug":"abb","productSlug":"S203M-D10","canonicalUrl":"https://aoctrl.com/abb/S203M-D10","factsUrl":"https://aoctrl.com/api/mcp/products/S203M-D10","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203M-D10 thermal-magnetic miniature circuit breaker, D-curve 10 A, DIN rail mount, 0.16 kg.","salesMarkdown":"## What it is and where it fits The ABB S203M-D10 is a thermal-magnetic miniature circuit breaker (MCB) in the S200M series, rated for 10 A with a D tripping characteristic. It snaps onto standard DIN rail inside a distribution board or industrial control panel, protecting downstream wiring and loads against overcurrent and short circuits. The D-curve (10–20× In) is designed for loads with high inrush currents — motor starters, transformers, or lighting ballasts — where a B or C curve would nuisance-trip on startup.","metaTitle":"ABB S203M-D10 Thermal-Mag MCB, 10A D-Curve, DIN Rail","metaDescription":"ABB S203M-D10 thermal-magnetic miniature circuit breaker, 10A D-curve, DIN rail mount. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203M-D10","Weight":"0.16 kgs","Category":"Circuit Breakers","Sub Category":"Din Rail Mount Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$51.82","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203M-D10/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for S203M-D10?","answer":"The S203M-D10 is sourced 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 estimate."},{"question":"Will S203M-D10 drop into a panel that was specified around SH201T-C16 without rewiring?","answer":"No. The S203M-D10 is a three-pole breaker (3 modules wide on DIN rail) while the SH201T-C16 is single-pole (1 module wide). The footprint, wiring configuration, and current rating differ. A panel designed for single-pole SH201T breakers would need a different DIN rail layout and wiring to accept the three-pole S203M-D10."},{"question":"What compliance documentation does this brand provide for S203M-D10?","answer":"ABB typically provides a Declaration of Conformity covering the S200M series for IEC/EN 60898-1 and IEC/EN 60947-2, along with RoHS and REACH compliance statements. Specific documentation for the S203M-D10 order code is available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203M-D10","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/S203M-D10 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}}