{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S202-K25","brand":"ABB","brandSlug":"abb","productSlug":"S202-K25","canonicalUrl":"https://aoctrl.com/abb/S202-K25","factsUrl":"https://aoctrl.com/api/mcp/products/S202-K25","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200 Series, S202-K25, 25 A, 2-pole, K-Curve, 277 VAC, 6 kAIC, UL 1077 supplemental protector, DIN rail mount.","salesMarkdown":"## Supplemental protector for motor and inductive loads The ABB S202-K25 is a 25 A, 2-pole miniature circuit breaker with a K-trip curve, rated at 277 VAC and a 6 kA interrupting capacity. It's classified as a UL 1077 supplemental protector — meaning it's intended for internal circuit protection within equipment, not as a service-entrance main breaker. The K-curve (typically 8–12x In magnetic trip) is specifically designed to handle the inrush of motor loads, transformers, and solenoid valves without nuisance tripping, while still providing short-circuit protection. The 2-pole footprint occupies two 17.5 mm modular units — 35 mm total width. Spring-cage terminals accept 0.5–25 mm² conductors; strip length 8–10 mm. No additional mounting hardware required for panel integration.","metaTitle":"S202-K25 ABB 25A K-Curve 2-Pole DIN Rail MCB, 277VAC 6kA","metaDescription":"ABB S202-K25 25A, 2-pole, K-curve miniature circuit breaker. 277VAC, 6kA interrupting. UL 1077 supplemental protector. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"25","Type":"Trip Curve K","Poles":"2","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.23","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1b888e9d473400bd32917551d1de57a0.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S202-K25/alternatives.json"},"ai":{"faq":[{"question":"What is S202-K25's listed amps and trip curve?","answer":"The S202-K25 is rated at 25 A with a K-trip curve (magnetic trip typically 8–12x In), designed for motor and inductive load protection."},{"question":"Where can I buy S202-K25 and how is it quoted?","answer":"The S202-K25 is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability confirmation."},{"question":"Will S202-K25 drop into a panel specified around S202M-C25 without rewiring?","answer":"Both the S202-K25 and S202M-C25 share the same 2-pole DIN-rail footprint, 277 VAC rating, and 6 kA interrupting capacity. The key difference is the trip curve: K-curve on the S202-K25 vs C-curve on the S202M-C25. They are mechanically interchangeable, but the trip curve must match the load type — K for inductive/motor loads, C for general-purpose or lighting circuits."},{"question":"What compliance documentation does ABB provide for S202-K25?","answer":"The S202-K25 is UL 1077 listed and CSA 22.2 certified as a supplemental protector. Standard compliance documentation includes UL/CSA markings on the device; RoHS and REACH declarations are available from ABB's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S202-K25","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-K25 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}}