{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A110-30-11-51","brand":"ABB","brandSlug":"abb","productSlug":"A110-30-11-51","canonicalUrl":"https://aoctrl.com/abb/A110-30-11-51","factsUrl":"https://aoctrl.com/api/mcp/products/A110-30-11-51","rawCanonicalId":null},"summary":{"shortDescription":"ABB A110-30-11-51 A110 series 3-pole contactor, 110 A, 480 V AC coil, 1 NO + 1 NC auxiliary contacts, non-reversing across-the-line.","salesMarkdown":"The A110-30-11-51: Rated 110 A continuous — this is the thermal current (Ith), not the motor locked-rotor current; the contactor must carry the full-load amps of the driven load without exceeding its temperature rise limit. For a motor branch circuit, the contactor is typically selected at 1.15× the motor FLA per NEC 430.83, so a 110 A contactor covers motors up to about 95 A FLA. The 480 V AC coil means the control circuit must deliver 480 V at the coil terminals during pick-up and hold. On a 400 V nominal system the coil pulls in but may drop out at 85 % of rated voltage (408 V) — verify the control transformer tap and the voltage sag during motor starting. Three poles, non-reversing, across-the-line switching — this is the standard three-phase motor contactor layout. The 1 NO + 1 NC auxiliary contacts are built into the base unit: the NO contact signals the PLC that the contactor has closed; the NC contact blocks the backup starter from closing. ## End-of-life hot — sourcing window is closing No stock-holding claim; each order is confirmed against the available surplus or remaining factory inventory. ## Peer comparison — not a drop-in for the AF25 frame The closest listed peer is the ABB 1SBL136061R2110 (AF25, 25 A, 3-pole, DIN rail, screw terminals). That is a different frame size — the A110-30-11-51 is a 110 A frame with a larger physical footprint and different mounting hole pattern. The AF25 will not carry the same load or fit the same panel cutout; a board spin or panel re-layout is required if switching to the smaller frame.","metaTitle":"ABB A110-30-11-51 Contactor, 110 A, 3-Pole, 480 V Coil","metaDescription":"ABB A110-30-11-51 3-pole contactor rated 110 A with 480 V AC coil and 1NO+1NC aux contacts. End-of-life hot — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Amps":"110","Type":"Contactor","Poles":"3","title":"A110-30-11-51","description":"ABB A110-30-11-51 A110,3P CONTR.480|3 pole, 160 amp, non-reversing across the line contactor with 480V AC coil and 1 NO and 1 NC auxiliary contacts","lifecycle_stage":"eol_hot","Volts AC Control":"480"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$572.80","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce24883bdf9b77875f002da789a30c44.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is A110-30-11-51's rated current?","answer":"The continuous thermal current rating is 110 A. This is the current the contactor can carry without exceeding its temperature rise limit. For motor duty, select it at 1.15× the motor full-load amps per NEC 430.83."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/A110-30-11-51","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/A110-30-11-51 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}}