# Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC Schneider Electric Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC: original STEP for cable-routing hardware layouts. ## Equipment and file summary Equipment / resource: Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC Manufacturer: Schneider Electric Resource type: Product Manufacturer drawing identity: Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC Source document: SSP1A475BD-3dCAD; revision 1.0 Source-model envelope: 44.5 × 59 × 33.8 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: STEP Listed files: 1 Available previews: 1 drawing previews; 1 interactive model variants Recorded revisions: 1.0 Source checked: 2026-11-11 Download access: Email registration for site downloads; official source links are also available ## Related GA references - [Cable ladder / tray](https://eloragrid.ai/objects/cable-ladder) - [Perforated cable tray](https://eloragrid.ai/objects/ga-perforated-cable-tray) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/mfr-schneider-electric-harmony-solid-state-relay-75-a-din-rail-mount-zero-voltage-switching-input-4-32-v-dc-o-49ef9f8bc5 Manufacturer: Schneider Electric Entry type: Product Part number: Not specified — select exact configuration Category: Cable management Formats: STEP Market discovery: Global Access: Direct download Official source: https://www.se.com/us/en/download/document/SSP1A475BD-3dCAD/ Manufacturer evidence: https://www.se.com/us/en/download/document/SSP1A475BD-3dCAD/ 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. Use the manufacturer configuration named Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC. ## In plain English ### What the equipment does A relay uses an electrical input or measured condition to change its contacts or output. This lets one circuit pass a command or indication to another. ### A simple example Use ssp1a475bd-3dCAD.stp (revision 1.0) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified ssp1a475bd-3dCAD.stp. ### What the drawings help you do Use ssp1a475bd-3dCAD.stp (revision 1.0) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified ssp1a475bd-3dCAD.stp. ### Before using this reference - Match Schneider Electric Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC and the exact source filename shown above. - The supplied model has approximate X × Y × Z bounds of 44.5 × 59 × 33.8 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: ssp1a475bd-3dCAD.stp — 1.0. Use Documentation & sources to check for a newer issue. ### Which original files are supplied for Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC? 1 inspected original for Schneider Electric Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC: ssp1a475bd-3dCAD.stp (STEP). ### Where did these Schneider Electric files come from? Schneider Electric supplied the original files through https://www.se.com/us/en/download/document/SSP1A475BD-3dCAD/. 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 Harmony, Solid state relay, 75 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 48…660 V AC → Choose STEP → Check the matching source configuration A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure. - [Schneider Electric official source](https://www.se.com/us/en/download/document/SSP1A475BD-3dCAD/) ## Which file should I choose? Use ssp1a475bd-3dCAD.stp (revision 1.0) to place the original solid geometry in your 3D assembly. The ZIP contains the unmodified ssp1a475bd-3dCAD.stp. ## Official files - ssp1a475bd-3dCAD.stp (STEP): https://download.se.com/files?p_Doc_Ref=SSP1A475BD-3dCAD&p_enDocType=CAD Site download: https://eloragrid.ai/tools/cad-library/download/mfr-schneider-electric-harmony-solid-state-relay-75-a-din-rail-mount-zero-voltage-switching-input-4-32-v-dc-o-49ef9f8bc5/se-55a497db69eb8871f53d Hosting basis: no-explicit-prohibition; publisher attribution: Schneider Electric; 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://download.se.com/files?p_Doc_Ref=SSP1A475BD-3dCAD&p_enDocType=CAD Purpose: Original manufacturer STEP geometry; acquired: true; redistribution: unknown; SHA-256: cc260933637778da02edae8dedfb2d2b5491530587a0347f0a1f016a0eeb5240; revision: 1.0 Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.