# OHB-G1 ABB OHB-G1: switching-equipment reference for switch installation and operating arrangement. Manufacturer reference OHB_G1_SR.STP. ## Equipment and file summary Equipment / resource: OHB-G1 Manufacturer: ABB Resource type: Named drawing reference Part number: 1SCA164206R1001 Manufacturer drawing: OHB_G1_SR.STP Source configurations grouped on this page: OHB-G1; OHR-G1 Manufacturer reference: OHB_G1_SR.STP Document revision: A Model envelope: OHB_G1_SR.stp: 18.3 × 11.7 × 28.5 mm (approximate X × Y × Z bounds of the tessellated source model) Manufacturer reference: OHR_G1_SR.STP Model envelope: OHR_G1_SR.stp: 18.3 × 11.7 × 28.5 mm (approximate X × Y × Z bounds of the tessellated source model) Listed file formats: STEP Listed files: 2 Available previews: 2 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 - [Switchgear panel](https://eloragrid.ai/objects/switchgear-panel) - [Switchboard](https://eloragrid.ai/objects/switchboard) - [Ring main unit](https://eloragrid.ai/objects/ring-main-unit) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/abb-ohb-g1-d091dda72d Manufacturer: ABB Entry type: Named drawing reference Part number: 1SCA164206R1001 Category: Switchboards & switchgear Formats: STEP Market discovery: Global Access: Direct download Official source: https://search.abb.com/library/Download.aspx?DocumentID=OHB_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Manufacturer evidence: https://search.abb.com/library/Download.aspx?DocumentID=OHB_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Source checked: 2026-11-03 2 original files are 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 “OHB-G1”. Keep those frame, mounting and accessory codes with the inserted drawing. ## In plain English ### Using the OHB-G1 reference ABB OHB-G1: switching-equipment reference for switch installation and operating arrangement. Manufacturer reference OHB_G1_SR.STP. ### A simple example Use OHB_G1_SR.stp revision A for the supplied solid assembly in your 3D layout. Match the OHB-G1 configuration named by ABB. ### What the drawings help you do Use OHB_G1_SR.stp revision A for the supplied solid assembly in your 3D layout. Use OHR_G1_SR.stp revision A for the supplied solid assembly in your 3D layout. Match the OHR-G1 configuration named by ABB. ### Before using this reference - The supplied configuration is “OHB-G1”. Keep those frame, mounting and accessory codes with the inserted drawing. - Check whether this reference is the switch body, an operating handle or another accessory. Handle and shaft references do not give the complete switch envelope or terminal clearances. - OHB_G1_SR.stp has approximate model bounds of 18.3 × 11.7 × 28.5 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. - The supplied configuration is “OHR-G1”. Keep those frame, mounting and accessory codes with the inserted drawing. - OHR_G1_SR.stp has approximate model bounds of 18.3 × 11.7 × 28.5 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. - This page groups 2 source references for the same configuration or model geometry. The file list retains the separate formats and source revisions. ### What can I use the OHB-G1 reference for? Use this switching-equipment reference for switch installation and operating arrangement. The supplied configuration is “OHB-G1”. Keep those frame, mounting and accessory codes with the inserted drawing. ### Which manufacturer reference identifies this drawing? ABB reference OHB_G1_SR.STP. The file list retains the original source and recorded revision. ### Terms Concept diagram: Identify OHB-G1 → Select the drawing or model → Check the mounting interface The supplied configuration is “OHB-G1”. Keep those frame, mounting and accessory codes with the inserted drawing. - [ABB source](https://search.abb.com/library/Download.aspx?DocumentID=OHB_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A) ## Which file should I choose? Use OHB_G1_SR.stp revision A for the supplied solid assembly in your 3D layout. Use OHR_G1_SR.stp revision A for the supplied solid assembly in your 3D layout. Match the OHR-G1 configuration named by ABB. ## Official files - OHB_G1_SR.stp (STEP): https://search.abb.com/library/Download.aspx?DocumentID=OHB_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Site download: https://eloragrid.ai/tools/cad-library/download/abb-ohb-g1-d091dda72d/d665b0eeff8e542e646a 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=OHB_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Purpose: Manufacturer drawing reference OHB_G1_SR.STP; acquired: true; redistribution: unknown; SHA-256: d665b0eeff8e542e646ad361fa034d4dfa8304cd5e978686a18b0c9fdf418f00; revision: A - OHR_G1_SR.stp (STEP): https://search.abb.com/library/Download.aspx?DocumentID=OHR_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Site download: https://eloragrid.ai/tools/cad-library/download/abb-ohb-g1-d091dda72d/34e8fbf829889c44e7a0 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=OHR_G1_SR.STP&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Purpose: Manufacturer drawing reference OHR_G1_SR.STP; acquired: true; redistribution: unknown; SHA-256: 34e8fbf829889c44e7a094fecb712f03a73ed4a3d408e32928ac1388d6cf1196; revision: A Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.