{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TF42-10","brand":"ABB","brandSlug":"abb","productSlug":"TF42-10","canonicalUrl":"https://aoctrl.com/abb/TF42-10","factsUrl":"https://aoctrl.com/api/mcp/products/TF42-10","rawCanonicalId":null},"summary":{"shortDescription":"ABB TF42-10 overload relay, NEMA type, 3-pole, 7.6-10 A range, thermal bi-metallic, Trip Class 10, A-Line family.","salesMarkdown":"## 10 A thermal bi-metallic — Trip Class 10 protection for AF contactors The ABB TF42-10 is a NEMA-type thermal overload relay rated for a 7.6–10 A range, 3-pole, with a Trip Class 10 characteristic. It is designed for use with ABB AF Series contactors in the AF9–AF38 frame sizes. The thermal bi-metallic element provides motor overload protection by tracking the heating curve of the motor windings. ## Selectable reset and mounting with AF contactors The TF42-10 offers selectable manual or automatic reset, giving the panel builder control over restart behavior after a trip — manual reset for attended machinery, automatic for remote or unattended installations. It mounts directly to AF9–AF38 frame contactors, sharing the same DIN-rail or panel footprint. The thermal element is ambient-compensated, so the trip point stays stable across the panel's internal temperature range.","metaTitle":"ABB TF42-10 Overload Relay, 10 A, NEMA, 3-Pole","metaDescription":"ABB TF42-10 overload relay, 10 A, NEMA type, 3-pole, thermal bi-metallic, Trip Class 10. Current production. Quoted to order against BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Amps":"10","Type":"NEMA","Poles":"3","title":"TF42-10","Amps Range":"7.600 - 10","description":"7.6 - 10.0 Amp, IEC, Overload Relay|7.6 - 10.0 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":"$90.70","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fa1fadf357c0aa2d31acc15cb8640dad.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the TF42-10's amp rating and trip class?","answer":"The TF42-10 is rated for a 7.6–10 A range, 3-pole, with Trip Class 10. The thermal bi-metallic element provides motor overload protection with a 10-second maximum trip time at 600% of the set current."},{"question":"Which contactors does the TF42-10 work with?","answer":"The TF42-10 is designed for use with ABB AF Series contactors in the AF9–AF38 frame sizes. It mounts directly to the contactor, sharing the same DIN-rail or panel footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/TF42-10","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/TF42-10 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}}