# SDU 104 DEIF SDU 104 marine engine shutdown unit: editable DWG outlines, dimensioned PDF views and a STEP housing model for cabinet layouts. The datasheet supplies mounting and size references. ## Equipment and file summary Equipment / resource: SDU 104 Manufacturer: DEIF Resource type: Product Part number: SDU 104 Manufacturer drawing: sdu-104-2d-cad-drawing.dwg; sdu-104-2d-pdf.pdf; sdu-104-3d-step-file.stp Manufacturer nominal dimensions: 156 mm length × 125 mm height × 59 mm depth; data sheet 4921240625G, page 16. Mounting and nominal weight: DIN mounting; 0.79 kg. Listed file formats: DWG, PDF, STEP Listed files: 5 Available previews: Manufacturer source / drawing request Recorded revisions: G Source checked: 2026-11-04 Download access: Use the official manufacturer source or request the exact drawing ## Related GA references - [Generator exhaust silencer](https://eloragrid.ai/objects/ga-generator-exhaust-silencer) - [Generator day tank](https://eloragrid.ai/objects/ga-generator-day-tank) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/deif-sdu-104-a4d3f26b7b Manufacturer: DEIF Entry type: Product Part number: SDU 104 Category: Generator auxiliaries Formats: DWG, PDF, STEP Market discovery: Global Access: Request CAD Official source: https://www.deif.com/documentation/sdu-104/ Manufacturer evidence: https://www.deif.com/documentation/sdu-104/ Source checked: 2026-11-04 Source-only. Open the manufacturer reference or request the drawing for your selected equipment. Confirm the exact regional configuration against the selected manufacturer drawing. Manufacturer reference sdu-104-2d-cad-drawing.dwg; sdu-104-2d-pdf.pdf; sdu-104-3d-step-file.stp identifies this control-equipment reference. ## In plain English ### What the SDU 104 does DEIF SDU 104 marine engine shutdown unit: editable DWG outlines, dimensioned PDF views and a STEP housing model for cabinet layouts. The datasheet supplies mounting and size references. ### A simple example An engine-control cabinet can use this unit as an additional shutdown layer. Its drawing helps position the unit and its terminal sides on the mounting rail. ### What the drawings help you do Choose sdu-104-2d-cad-drawing.dwg for editable housing views in your cabinet GA. Choose sdu-104-2d-pdf.pdf for the manufacturer outline: the marked spans are 156.0, 125.4 and 59.1. The matching datasheet expresses the nominal housing dimensions in millimetres. Choose sdu-104-3d-step-file.stp for the supplied housing and terminal geometry in a 3D cabinet layout. Use sdu-104-data-sheet-4921240625-uk.pdf, page 16, for nominal dimensions, DIN mounting and weight. The optional sdu-104-3d-pdf.pdf uses interactive PDF content. Choose STEP for the website model viewer, or use a compatible PDF application for that original. ### Before using this reference - Keep the detailed outline dimensions separate from the rounded datasheet values: the outline marks 125.4 and 59.1, while the nominal table states 125 mm and 59 mm. - This is a marine engine shutdown unit. Confirm the selected engine-controller arrangement against the SDU 104 documentation before specifying it. - Locate the terminal sides shown on the drawing so cabinet wiring can reach them. The outline is not a terminal-function or field-wiring diagram. ### Why do the outline and datasheet dimensions differ slightly? The one-sheet outline marks 156.0, 125.4 and 59.1. Data sheet 4921240625G lists rounded nominal dimensions of 156 × 125 × 59 mm. Keep the detailed drawing with your layout instead of replacing its annotations with rounded table values. ### Terms Concept diagram: Identify SDU 104 → Select the drawing or model → Check the mounting interface Manufacturer reference sdu-104-2d-cad-drawing.dwg; sdu-104-2d-pdf.pdf; sdu-104-3d-step-file.stp identifies this control-equipment reference. - [DEIF source](https://www.deif.com/documentation/sdu-104/) ## Which file should I choose? Choose sdu-104-2d-cad-drawing.dwg for editable housing views in your cabinet GA. Choose sdu-104-2d-pdf.pdf for the manufacturer outline: the marked spans are 156.0, 125.4 and 59.1. The matching datasheet expresses the nominal housing dimensions in millimetres. Choose sdu-104-3d-step-file.stp for the supplied housing and terminal geometry in a 3D cabinet layout. Use sdu-104-data-sheet-4921240625-uk.pdf, page 16, for nominal dimensions, DIN mounting and weight. The optional sdu-104-3d-pdf.pdf uses interactive PDF content. Choose STEP for the website model viewer, or use a compatible PDF application for that original. ## Official files - sdu-104-2d-cad-drawing.dwg (DWG): https://deif-cdn-umbraco.azureedge.net/media/cjqnmtzl/sdu-104-2d-cad-drawing.dwg?rnd=133625651248730000&v=9 Site download: not publicly hosted Rights review: The DEIF terms apply across its group websites and require written permission for public copying, republication, uploading and distribution.; evidence: https://deif-cdn-umbraco.azureedge.net/media/cjqnmtzl/sdu-104-2d-cad-drawing.dwg?rnd=133625651248730000&v=9, https://www.deif.com/terms-of-use/ Purpose: Manufacturer drawing reference sdu-104-2d-cad-drawing.dwg; acquired: true; redistribution: restricted; SHA-256: 4a225bf141451df4c9c06a668031484af3e3b30f9f3d131f65d29d90fdd8d7be; revision: not recorded - sdu-104-2d-pdf.pdf (PDF): https://deif-cdn-umbraco.azureedge.net/media/z5ekna4x/sdu-104-2d-pdf.pdf?rnd=133625652222370000&v=9 Site download: not publicly hosted Rights review: The DEIF terms apply across its group websites and require written permission for public copying, republication, uploading and distribution.; evidence: https://deif-cdn-umbraco.azureedge.net/media/z5ekna4x/sdu-104-2d-pdf.pdf?rnd=133625652222370000&v=9, https://www.deif.com/terms-of-use/ Purpose: Manufacturer drawing reference sdu-104-2d-pdf.pdf; acquired: true; redistribution: restricted; SHA-256: c3c7d43a887727725021c536506fbf85e3fa8ad9d18005050b9bd25a5e09f4e2; revision: not recorded - sdu-104-3d-step-file.stp (STEP): https://deif-cdn-umbraco.azureedge.net/media/eyghgavr/sdu-104-3d-step-file.stp?rnd=133625649219700000&v=9 Site download: not publicly hosted Rights review: The DEIF terms apply across its group websites and require written permission for public copying, republication, uploading and distribution.; evidence: https://deif-cdn-umbraco.azureedge.net/media/eyghgavr/sdu-104-3d-step-file.stp?rnd=133625649219700000&v=9, https://www.deif.com/terms-of-use/ Purpose: Manufacturer drawing reference sdu-104-3d-step-file.stp; acquired: true; redistribution: restricted; SHA-256: 1be61a77e14b035293eed20b05a62a43b7c69c19d3f22628936ce6c66b9c26dd; revision: not recorded - sdu-104-3d-pdf.pdf (PDF): https://deif-cdn-umbraco.azureedge.net/media/ebxndu4y/sdu-104-3d-pdf.pdf?rnd=133625646515700000&v=9 Site download: not publicly hosted Rights review: The DEIF terms apply across its group websites and require written permission for public copying, republication, uploading and distribution.; evidence: https://deif-cdn-umbraco.azureedge.net/media/ebxndu4y/sdu-104-3d-pdf.pdf?rnd=133625646515700000&v=9, https://www.deif.com/terms-of-use/ Purpose: Manufacturer drawing reference sdu-104-3d-pdf.pdf; acquired: true; redistribution: restricted; SHA-256: d9034feafef4054d853619eeb966899d24173fb003cf672ff4e43786d5d00927; revision: not recorded - sdu-104-data-sheet-4921240625-uk.pdf (PDF): https://deif-cdn-umbraco.azureedge.net/media/avqgbtql/sdu-104-data-sheet-4921240625-uk.pdf?rnd=134069040828770000&v=9 Site download: not publicly hosted Rights review: The DEIF terms apply across its group websites and require written permission for public copying, republication, uploading and distribution.; evidence: https://deif-cdn-umbraco.azureedge.net/media/avqgbtql/sdu-104-data-sheet-4921240625-uk.pdf?rnd=134069040828770000&v=9, https://www.deif.com/terms-of-use/ Purpose: Manufacturer drawing reference 4921240625; acquired: true; redistribution: restricted; SHA-256: 9855cc60d8b4e8b8e4b64ab4509514ebbcb623a16d6c6809aaffd72e3b6fd474; revision: G Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.