{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TF42-35","brand":"ABB","brandSlug":"abb","productSlug":"TF42-35","canonicalUrl":"https://aoctrl.com/abb/TF42-35","factsUrl":"https://aoctrl.com/api/mcp/products/TF42-35","rawCanonicalId":null},"summary":{"shortDescription":"Eaton A-Line TF42-35 thermal bimetallic overload relay, 35 A, 3-pole, Trip Class 10, adjustable 29-35 A, for AF9-AF38 frame contactors.","salesMarkdown":"## What the 35 A rating means for fit The Eaton TF42-35 is a 3-pole thermal bimetallic overload relay rated 35 A, adjustable from 29 to 35 A. That 35 A figure is the top of the adjustment dial — the relay is sized for a motor full-load current between 29 and 35 A. The NEMA type designation refers to the enclosure style, not the mounting footprint — this unit is designed for direct mounting to Eaton AF9 through AF38 frame contactors. ## Integration with AF contactors This relay mounts directly onto AF9, AF12, AF16, AF26, AF30, and AF38 frame contactors without additional hardware. The thermal bimetal element senses motor current through the contactor's power poles, so the wiring path is contactor → overload relay → motor. Selectable manual or automatic reset on the front dial lets you choose whether the relay latches after a trip or resets when the bimetal cools — manual reset is typical for unattended or remote installations where an automatic restart could be a safety hazard.","metaTitle":"Eaton TF42-35 Overload Relay, 35 A, Trip Class 10, for AF Se","metaDescription":"Eaton TF42-35 thermal overload relay, 35 A adjustable 29-35 A, Trip Class 10. For AF9-AF38 contactors. Current lifecycle stage. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Amps":"35","Type":"NEMA","Poles":"3","title":"TF42-35","Amps Range":"29 - 35","description":"29.0 - 35.0 Amp, IEC, Overload Relay|29.0 - 35.0 Amp, IEC, Overload Relay, Type: Thermal Bi-Metallic, Trip Class 10. Selectable Manual or Automatic Reset. For use with AF Series, AF9 - AF38 Frame Contactors.","Family / Style":"A-Line","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$28.58","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/76b9873ddd72eed8fd30a52ee6f035e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the TF42-35's adjustable amp range?","answer":"The TF42-35 adjusts from 29 to 35 A. Set the dial to match the motor's full-load current within that window."},{"question":"Which contactors does the TF42-35 mount to?","answer":"This overload relay mounts directly to Eaton AF9 through AF38 frame contactors — specifically AF9, AF12, AF16, AF26, AF30, and AF38."},{"question":"Where can I buy the TF42-35?","answer":"The TF42-35 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/TF42-35","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/TF42-35 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}}