# STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C ABB STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C: breaker or breaker-accessory reference for breaker compartment and mounting interfaces. Manufacturer reference 9AKK108471A9986. ## Equipment and file summary Equipment / resource: STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C Manufacturer: ABB Resource type: Named drawing reference Manufacturer drawing: 9AKK108471A9986 Manufacturer reference: 9AKK108471A9986 Document revision: A Listed file formats: STEP Listed files: 1 Available previews: 1 interactive model variants Recorded revisions: A Source checked: 2026-11-04 Download access: Email registration for site downloads; official source links are also available ## Related GA references - [Air circuit breaker](https://eloragrid.ai/objects/ga-air-circuit-breaker) - [Moulded-case circuit breaker](https://eloragrid.ai/objects/ga-moulded-case-circuit-breaker) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/abb-3d-step-ovr-t1-t2-t3-3l-75-255-c-or-ovr-t1-t2-t3-3n-100-255-c-76ea6cc02c Manufacturer: ABB Entry type: Named drawing reference Part number: Not specified — select exact configuration Category: Breakers & accessories Formats: STEP Market discovery: Global Access: Direct download Official source: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A9986&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Manufacturer evidence: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A9986&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Source checked: 2026-11-04 1 original file is available to download here. Manufacturer sources and revisions are listed below. Confirm the exact regional configuration against the selected manufacturer drawing. The supplied configuration is “STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C”. Keep those frame, mounting and accessory codes with the inserted drawing. ## In plain English ### Using the STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C reference ABB STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C: breaker or breaker-accessory reference for breaker compartment and mounting interfaces. Manufacturer reference 9AKK108471A9986. ### A simple example Use 9AKK108471A9986_en_A_3D_STEP_OVR_T1_T2_T3_3L_75_255_C_or_OVR_T1_T2_T3_3N_100_255_C.stp revision A for the supplied solid assembly in your 3D layout. Match the 3D STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C configuration named by ABB. ### What the drawings help you do Use 9AKK108471A9986_en_A_3D_STEP_OVR_T1_T2_T3_3L_75_255_C_or_OVR_T1_T2_T3_3N_100_255_C.stp revision A for the supplied solid assembly in your 3D layout. ### Before using this reference - The supplied configuration is “STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C”. Keep those frame, mounting and accessory codes with the inserted drawing. - Use the exact frame, pole and mounting configuration named by this reference. Door drilling, connection and accessory drawings describe those interfaces rather than a complete switchboard. ### What can I use the STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C reference for? Use this breaker or breaker-accessory reference for breaker compartment and mounting interfaces. The supplied configuration is “STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C”. Keep those frame, mounting and accessory codes with the inserted drawing. ### Which manufacturer reference identifies this drawing? ABB reference 9AKK108471A9986. The file list retains the original source and recorded revision. ### Terms Concept diagram: Identify STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C → Select the drawing or model → Check the mounting interface The supplied configuration is “STEP OVR T1-T2-T3 3L 75-255 C or OVR T1-T2-T3 3N 100-255 C”. Keep those frame, mounting and accessory codes with the inserted drawing. - [ABB source](https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A9986&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A) ## Which file should I choose? Use 9AKK108471A9986_en_A_3D_STEP_OVR_T1_T2_T3_3L_75_255_C_or_OVR_T1_T2_T3_3N_100_255_C.stp revision A for the supplied solid assembly in your 3D layout. ## Official files - 9AKK108471A9986_en_A_3D_STEP_OVR_T1_T2_T3_3L_75_255_C_or_OVR_T1_T2_T3_3N_100_255_C.stp (STEP): https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A9986&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Site download: https://eloragrid.ai/tools/cad-library/download/abb-3d-step-ovr-t1-t2-t3-3l-75-255-c-or-ovr-t1-t2-t3-3n-100-255-c-76ea6cc02c/1aa887b93dd438dea480 Hosting basis: no-explicit-prohibition; publisher attribution: ABB; reviewed: 2026-11-04 Rights review: Reviewed the available source, embedded drawing text and archive notices. No explicit applicable redistribution prohibition was identified. Rights remain unknown; no licence or manufacturer endorsement is asserted.; evidence: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A9986&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Purpose: Manufacturer drawing reference 9AKK108471A9986; acquired: true; redistribution: unknown; SHA-256: 1aa887b93dd438dea480535f317a7db4b8564882bb2a65efde8805654691a47e; revision: A Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.