{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"B 75","brand":"ABB","brandSlug":"abb","productSlug":"B-75","canonicalUrl":"https://aoctrl.com/abb/B-75","factsUrl":"https://aoctrl.com/api/mcp/products/B%2075","rawCanonicalId":null},"summary":{"shortDescription":"ABB, B 75 contactor, (690 V) 40 kW, 48-55 V AC coil, 50/60 Hz, 3 NO main contacts, 1 NO + 1 NC auxiliary, 1000 V rated insulation voltage, 82 x 108 x 110 mm.","salesMarkdown":"The ABB B 75 is a three-pole contactor rated for (690 V) 40 kW switching capacity, with a coil that pulls in on 48-55 V AC at 50/60 Hz. That power rating is the AC-3 motor-switching figure — the one that matters for sizing against a motor load, not the resistive AC-1 number. ## Integration Notes The B 75 occupies an 82 x 108 x 110 mm footprint — a standard contactor envelope for this power class, suitable for DIN-rail or panel-mount integration. The three NO main contacts handle the power circuit; the built-in auxiliary stack gives one NO and one NC for feedback or interlocking without an add-on block. Coil draws on a 48-55 V AC control supply, common in older European panel designs running on 50/60 Hz control transformers.","metaTitle":"ABB B 75 Contactor, (690 V) 40 kW, 48-55 V AC Coil","metaDescription":"ABB B 75 contactor, rated (690 V) 40 kW with 48-55 V AC coil. End-of-life hot status. Three NO main contacts, 1 NO + 1 NC auxiliary. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"(":"690 V) 40 kW","Type":"Contactor","Model":"B 75","Weight":"1,04 kg","Condition":"New","Shelf No.":"241203","Coil Voltage":"48 … 55 V AC","Manufacturer":"ABB","Coil Frequency":"50 / 60 Hz","Type of Product":"Contactor","lifecycle_stage":"eol_hot","Auxiliary Contacts":"1 Normally Closed, 1 Normally open","Rated Operational Power":"(","Rated Insulation Voltage":"1000 V","Number of Main Contacts NO":"3","Dimension ( Width x Depth x Height )":"82 x 108 x 110 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$60.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/B%2075/alternatives.json"},"ai":{"faq":[{"question":"What is the (690 V) 40 kW rating on the B 75?","answer":"That is the rated operational power for motor switching (AC-3 duty) at 690 V — the figure you size the contactor against for a three-phase motor load. At lower voltages the current capacity scales up, but the power figure is the direct selection parameter for a given motor kW."},{"question":"What coil voltage does the B 75 use?","answer":"The coil is rated 48-55 V AC, 50/60 Hz. That is a non-standard control voltage in modern panels — verify your control transformer taps before wiring."},{"question":"Where can I buy the ABB B 75?","answer":"The B 75 is sourced to order against an RFQ through independent distribution channels. Submit an RFQ for current availability and pricing — no stock count or lead-time number is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/B-75","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/B-75 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}}