{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-D4","brand":"ABB","brandSlug":"abb","productSlug":"S202-D4","canonicalUrl":"https://aoctrl.com/abb/S202-D4","factsUrl":"https://aoctrl.com/api/mcp/products/S202-D4","rawCanonicalId":null},"summary":{"shortDescription":"Miniature circuit breaker, ABB S200 series, S202-D4, 4 A, D trip curve, 2-pole, 277 V AC, 6 kA interrupting rating, DIN rail mount.","salesMarkdown":"The S202-D4 is a 4 A, 2-pole miniature circuit breaker in the ABB S200 series, with a D trip curve and a 277 V AC rating. The 2-pole format takes two module widths (about 36 mm) in the enclosure. No separate busbar needed for the line side — the S200 busbar system clips directly into the breaker's line-side terminals for multi-pole feed.","metaTitle":"S202-D4 Miniature Circuit Breaker, 4 A, D Curve, 2-Pole, 277","metaDescription":"S202-D4 miniature circuit breaker, 4 A, D trip curve, 2-pole, 277 V AC, 6 kA interrupting rating. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"4","Type":"Trip Curve D","Poles":"2","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$390.14","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c4221c563641f821e7e665d9acc74104.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202-D4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S202-D4 and get a price?","answer":"The S202-D4 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does the D trip curve mean on the S202-D4?","answer":"The D trip curve on the S202-D4 means the magnetic trip operates at 10 to 20 times the rated current (40 to 80 A), designed for loads with high inrush like motors, transformers, or welding equipment."},{"question":"What is the interrupting rating of S202-D4?","answer":"The S202-D4 has a 6 kA interrupting rating at 277 V AC, meaning it can safely interrupt fault currents up to 6,000 A without damage."},{"question":"Will S202-D4 drop into a panel specified for S202M-C10 without rewiring?","answer":"Yes. Both the S202-D4 and S202M-C10 share the same 2-pole DIN-rail footprint, same 277 V AC voltage rating, and same 6 kA interrupting rating. The only difference is the trip curve — D on the S202-D4 versus C on the S202M-C10 — and the current rating (4 A versus 10 A). The physical fit and wiring are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-D4","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/S202-D4 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}}