# E4.2/E4.3 IV F TERMINALS F LOWER ABB E4.2/E4.3 IV F TERMINALS F LOWER: breaker connection or accessory reference for breaker compartment and mounting interfaces. Manufacturer reference 1SDH001252R0321. ## Equipment and file summary Equipment / resource: E4.2/E4.3 IV F TERMINALS F LOWER Manufacturer: ABB Resource type: Named drawing reference Manufacturer drawing: 1SDH001252R0321 Manufacturer reference: 1SDH001252R0321 Document revision: A Model envelope: 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp: 500 × 83.4 × 240 mm (approximate X × Y × Z bounds of the tessellated source model) Listed file formats: STEP Listed files: 1 Available previews: 1 interactive model variants Recorded revisions: A Source checked: 2026-11-03 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-e4-2-e4-3-iv-f-terminals-f-lower-7579e1680d 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=1SDH001252R0321&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Manufacturer evidence: https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0321&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Source checked: 2026-11-03 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. This reference covers the connection or accessory named in “E4.2/E4.3 IV F TERMINALS F LOWER”. It is not the complete breaker-and-compartment assembly. The supplied configuration is “E4.2/E4.3 IV F TERMINALS F LOWER”. Keep those frame, mounting and accessory codes with the inserted drawing. ## In plain English ### Using the E4.2/E4.3 IV F TERMINALS F LOWER reference ABB E4.2/E4.3 IV F TERMINALS F LOWER: breaker connection or accessory reference for breaker compartment and mounting interfaces. Manufacturer reference 1SDH001252R0321. ### A simple example Use 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp revision A for the supplied solid assembly in your 3D layout. Match the E4.2/E4.3 IV F TERMINALS F LOWER configuration named by ABB. ### What the drawings help you do Use 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp revision A for the supplied solid assembly in your 3D layout. ### Before using this reference - This reference covers the connection or accessory named in “E4.2/E4.3 IV F TERMINALS F LOWER”. It is not the complete breaker-and-compartment assembly. - The supplied configuration is “E4.2/E4.3 IV F TERMINALS F LOWER”. 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. - 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp has approximate model bounds of 500 × 83.4 × 240 mm (approximate X × Y × Z bounds of the tessellated source model). Compare these model axes with the installation orientation; mounting and service clearances are separate requirements. ### What can I use the E4.2/E4.3 IV F TERMINALS F LOWER reference for? Use this breaker connection or accessory reference for breaker compartment and mounting interfaces. This reference covers the connection or accessory named in “E4.2/E4.3 IV F TERMINALS F LOWER”. It is not the complete breaker-and-compartment assembly. ### Which manufacturer reference identifies this drawing? ABB reference 1SDH001252R0321. The file list retains the original source and recorded revision. ### Terms Concept diagram: Identify E4.2/E4.3 IV F TERMINALS F LOWER → Select the drawing or model → Check the mounting interface This reference covers the connection or accessory named in “E4.2/E4.3 IV F TERMINALS F LOWER”. It is not the complete breaker-and-compartment assembly. The supplied configuration is “E4.2/E4.3 IV F TERMINALS F LOWER”. Keep those frame, mounting and accessory codes with the inserted drawing. - [ABB source](https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0321&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A) ## Which file should I choose? Use 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp revision A for the supplied solid assembly in your 3D layout. ## Official files - 1SDH001252R0321_E4.2_IV_F_TERMINALS_F_LOWER.stp (STEP): https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0321&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Site download: https://eloragrid.ai/tools/cad-library/download/abb-e4-2-e4-3-iv-f-terminals-f-lower-7579e1680d/77fe26492189a2dccd49 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=1SDH001252R0321&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Purpose: Manufacturer drawing reference 1SDH001252R0321; acquired: true; redistribution: unknown; SHA-256: 77fe26492189a2dccd49000aa37d907b88dfdff7d2855ecb926710fb74949066; revision: A Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.