{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S201-C4","brand":"ABB","brandSlug":"abb","productSlug":"S201-C4","canonicalUrl":"https://aoctrl.com/abb/S201-C4","factsUrl":"https://aoctrl.com/api/mcp/products/S201-C4","rawCanonicalId":null},"summary":{"shortDescription":"ABB S201-C4, miniature circuit breaker, 1 pole, 4 A, C curve, DIN rail mount, 277 VAC, 6 kA interrupting rating, UL 1077.","salesMarkdown":"It carries a UL 1077 listing as a supplementary protector, so it's intended for overcurrent protection downstream of a branch-circuit protective device, not as the main service disconnect. The single-pole width is one modular unit (17.5 mm), so it occupies minimal space in a crowded enclosure. Terminal capacity accepts up to 25 mm² conductor, which is generous for a 4 A device and simplifies daisy-chaining through the panel. The thermal-magnetic trip mechanism means no external power supply needed for the protection function — it's self-powered off the line side. The 4 A rating governs the continuous current the breaker will carry without tripping. For a control transformer feeding a 24 VDC power supply or a bank of relay coils, size the load so the steady-state draw stays at or below 4 A. The C curve's magnetic trip threshold (5–10× In, or 20–40 A) means it will pass moderate inrush from transformer magnetizing or capacitive loads without nuisance trips, but still clears a hard short quickly.","metaTitle":"ABB S201-C4 Miniature Circuit Breaker, 4A, 1P, C Curve","metaDescription":"ABB S201-C4 miniature circuit breaker, 4 A, 1-pole, C curve, DIN rail mount, 277 VAC, 6 kA interrupting rating. UL 1077 listed. Current production — sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Amps":"4","Type":"Trip Curve C","Poles":"1","title":"S201-C4","Mounting":"DIN Rail","Volts AC":"277","description":"Circuit Breaker, Miniature, DIN Rail Mount,4A, 1P, 480Y/277VAC|1 Pole, 4 Amps, Rated At 480Y/277 Volt AC, Ul 1077 Series, Miniature Circuit Breaker, with Thermal-Magnetic, Trip Device, C Curve, 65 kAIC","lifecycle_stage":"current","Interrupt Rating AC":"6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.84","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/704cd4bbb0886e508d2ab7424cd04b35.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the interrupting rating of the S201-C4?","answer":"The S201-C4 has a 6 kA interrupting rating at 277 VAC. This means it can safely interrupt fault currents up to 6,000 A at its rated voltage."},{"question":"What compliance documentation does ABB provide for the S201-C4?","answer":"The S201-C4 carries a UL 1077 listing as a supplementary protector. For RoHS, REACH, and IEC documentation, request the manufacturer's declaration of conformity and material compliance sheet at quote time — these are typically provided with the shipment or available on request."},{"question":"Where can I buy the S201-C4 and how is it quoted?","answer":"The S201-C4 is 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/S201-C4","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/S201-C4 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}}