# OT400U33C ABB OT400U33C: original IGES for switching or transfer equipment layouts. OT400U33C, OT400U33CP, transfer switch, transfer switches. ## Equipment and file summary Equipment / resource: OT400U33C Manufacturer: ABB Resource type: Product Manufacturer configuration: OT400U33C, OT400U33CP, transfer switch, transfer switches Manufacturer drawing identity: OT400U33C Source document: OT400U33C.IGS; revision A Source-model envelope: 220 × 202.5 × 413 mm 2D preview basis: The orthographic views are projected from the manufacturer 3D geometry. They are labelled separately from original dimensioned sheets and do not add manufacturer dimensions. Listed file formats: IGES Listed files: 1 Available previews: 1 drawing previews; 1 interactive model variants Recorded revisions: A Source checked: 2026-11-11 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/mfr-abb-ot400u33c-73476a187a Manufacturer: ABB Entry type: Product Part number: Not specified — select exact configuration Category: Switchboards & switchgear Formats: IGES Market discovery: Global Access: Direct download Official source: https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch Manufacturer evidence: https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch Source checked: 2026-11-11 Inspected originals are available from this website through the existing download email prompt. Manufacturer source discovery; confirm the exact regional equipment configuration and certification separately. OT400U33C, OT400U33CP, transfer switch, transfer switches ## In plain English ### What the equipment does Switchgear groups the devices that connect, disconnect and protect power circuits. A switchboard takes an incoming supply and distributes it to outgoing circuits. ### A simple example Use OT400U33C.IGS.igs (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OT400U33C.IGS.igs. ### What the drawings help you do Use OT400U33C.IGS.igs (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OT400U33C.IGS.igs. ### Before using this reference - Match the recorded manufacturer configuration: OT400U33C, OT400U33CP, transfer switch, transfer switches - The supplied model has approximate X × Y × Z bounds of 220 × 202.5 × 413 mm. These are source-model axes; mounting holes and installation clearances must come from the matching manufacturer sheet. - The orthographic views are projected from the manufacturer 3D geometry. They are labelled separately from original dimensioned sheets and do not add manufacturer dimensions. - The source was checked on 2026-11-11; recorded file revisions: OT400U33C.IGS.igs — A. Use Documentation & sources to check for a newer issue. ### Which original files are supplied for OT400U33C? 1 inspected original for ABB OT400U33C: OT400U33C.IGS.igs (IGES). The manufacturer describes this configuration as OT400U33C, OT400U33CP, transfer switch, transfer switches. ### Where did these ABB files come from? ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch. The source reference, revision, original bytes and checksum are retained with each download. ### Terms - CAD: Computer-aided design files used to prepare drawings and models. - Revision: The recorded version of a drawing or model. Concept diagram: Identify OT400U33C → Choose IGES → Check the matching source configuration A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure. - [ABB official source](https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch) ## Which file should I choose? Use OT400U33C.IGS.igs (revision A) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified OT400U33C.IGS.igs. ## Official files - OT400U33C.IGS.igs (IGES): https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Site download: https://eloragrid.ai/tools/cad-library/download/mfr-abb-ot400u33c-73476a187a/abb-cb0f82415de3c3a7740f Hosting basis: no-explicit-prohibition; publisher attribution: ABB; reviewed: 2026-11-11 Rights review: Public manufacturer/supplier CAD original inspected with its included notices; no explicit applicable reproduction prohibition identified. Rights remain unknown.; evidence: https://search.abb.com/library/Download.aspx?DocumentID=OT400U33C.IGS&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A Purpose: Original manufacturer IGES geometry; acquired: true; redistribution: unknown; SHA-256: 948733e26af4ed0c79ca3ade809e399bce5b72e3d83638453758081ece6a7ef4; revision: A Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.