{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-D3","brand":"ABB","brandSlug":"abb","productSlug":"S202-D3","canonicalUrl":"https://aoctrl.com/abb/S202-D3","factsUrl":"https://aoctrl.com/api/mcp/products/S202-D3","rawCanonicalId":null},"summary":{"shortDescription":"ABB S202-D3, 2-pole miniature circuit breaker, Trip Curve D, 3 A, 277 V AC, 6 kA interrupting capacity, DIN rail mount.","salesMarkdown":"The ABB S202-D3 is a 2-pole miniature circuit breaker with a Trip Curve D characteristic, rated 3 A at 277 V AC. The Trip Curve D means the magnetic trip threshold is 10 to 20 times the rated current (30–60 A), designed for loads with high inrush like small motors, transformers, or solenoid banks. On a 277 V line-to-neutral system (common in North American commercial lighting panels), the 6 kA interrupting rating tells you it can safely clear a fault up to 6,000 A without welding its contacts or venting arc gas into the enclosure. That's adequate for most downstream panelboards with available fault current under that number — but verify your point-of-supply SCCR before committing the BOM line. ## Panel integration The 2-pole width (two modular units, 36 mm) fits existing distribution boards without re-drilling. Wire terminals accept up to 25 mm² conductor; torque to 2.5 Nm per the marking on the terminal clamp. No special busbar or adapter needed for a standard 2-pole comb bus.","metaTitle":"ABB S202-D3 MCB 2P D 3A 277V AC, 6kA","metaDescription":"ABB S202-D3 miniature circuit breaker, 2-pole, Trip Curve D, 3 A, 277 V AC, 6 kA interrupting rating. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"3","Type":"Trip Curve D","Poles":"2","title":"S202-D3","Mounting":"DIN Rail","Volts AC":"277","description":"Mcb 2p D 3a 480y/277 Supp|Abb S202-d3 2p 3a 480y/277","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.97","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3d4861d546d2709052ca7565a71eefa7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does Trip Curve D mean on this breaker?","answer":"Trip Curve D means the magnetic trip operates at 10 to 20 times the rated current — 30 to 60 A for this 3 A breaker. That's intended for loads with high inrush like small motors, transformers, or discharge lighting, where a C-curve would nuisance-trip on startup."},{"question":"Will the S202-D3 drop into a panel built for an S202M-C10?","answer":"Physically yes — same 2-pole DIN-rail footprint, same terminal layout, same busbar compatibility. The functional difference is the trip curve: D-curve (10–20x In) vs C-curve (5–10x In). If the circuit was originally designed for a C-curve, swapping to D-curve changes the coordination and may not provide the same protection for the connected load. Verify the load type before substituting."},{"question":"Where can I buy the S202-D3 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 inquiry for the latest lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-D3","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-D3 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}}