{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"F204AC-40/0.03","brand":"ABB","brandSlug":"abb","productSlug":"F204AC-40-0.03","canonicalUrl":"https://aoctrl.com/abb/F204AC-40-0.03","factsUrl":"https://aoctrl.com/api/mcp/products/F204AC-40%2F0.03","rawCanonicalId":null},"summary":{"shortDescription":"ABB F200 Series, F204AC-40/0.03, 4-pole residual current device, 40 A, 30 mA rated residual current, 480Y/277 VAC, UL 1053, DIN rail mount.","salesMarkdown":"## RCD for 480Y/277 VAC panels — 40 A, 4-pole, 30 mA trip The ABB F204AC-40/0.03 is a 4-pole residual current device from the F200 series, rated 40 A continuous with a 30 mA rated residual operating current. It mounts on DIN rail and is listed to UL 1053 for ground-fault protection on 480Y/277 VAC wye systems. The 30 mA trip threshold provides personnel protection against lethal shock currents, while the 40 A current rating handles branch circuits feeding lighting, small motor loads, or receptacle groups in commercial and industrial panels. The 40 A rating governs the maximum continuous load the RCD can carry without nuisance tripping from thermal effects. On a 480Y/277 VAC supply, that translates to roughly 33 kVA of three-phase load capacity — enough for a lighting panel, a small HVAC unit, or a machine-tool disconnect. Four-pole switching means the device opens all three phases plus the neutral. This is mandatory on 480Y/277 VAC wye systems where a neutral-to-ground fault could otherwise go undetected by a 3-pole device. The 30 mA residual trip level is the standard threshold for personnel protection per UL 1053. It will clear a ground fault before ventricular fibrillation becomes likely, but may nuisance-trip on circuits with high leakage from VFDs, UPS systems, or long cable runs — factor that into the branch-circuit assignment. DIN-rail mounting simplifies panel integration: the unit clips onto standard 35 mm rail and occupies a 4-module width. No additional brackets or panel cutouts needed. UL 1053 listing covers ground-fault sensing and relaying equipment for use in ordinary locations. The F204AC-40/0.03 is also CE marked for European markets, though the primary design target is North American 480Y/277 VAC distribution.","metaTitle":"ABB F204AC-40/0.03 4P RCD, 40A, 30mA, UL 1053","metaDescription":"ABB F204AC-40/0.03 4-pole residual current device, 40 A, 30 mA, 480Y/277 VAC, UL 1053 listed. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Amps":"40","Poles":"4","Mounting":"DIN Rail","Volts AC":"480","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6eca3f30cf2619abc60c293fdedaeeaf.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/F204AC-40%2F0.03/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does ABB provide for F204AC-40/0.03?","answer":"The device carries UL 1053 listing and CE marking. RoHS and REACH declarations are available from ABB on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/F204AC-40-0.03","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/F204AC-40-0.03 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}}