{"id":"abb-e1-2-iii-w-rear-segregation-ef-es-a8e12362","name":"E1.2 III W REAR SEGREGATION EF ES","manufacturer":"ABB","category":"breakers","description":"E1.2 III W REAR SEGREGATION EF ES: ABB manufacturer STEP resource, document 1SDH001252R0027, revision A. Use it to coordinate the breaker, switch or accessory arrangement in the switchgear assembly.","equipment":["circuit breaker or accessory","E1.2 III W REAR SEGREGATION EF ES"],"keywords":["E1.2 III W REAR SEGREGATION EF ES","1SDH001252R0027","","switchgear","STEP"],"markets":["Global"],"marketNote":"Manufacturer library discovery does not establish regional certification. Match the listed frame, terminal arrangement and accessories to the project.","kind":"drawing","drawingNumber":"1SDH001252R0027","sourceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch","officialEvidenceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch&DocumentRevisionId=A","sourcePublisher":"ABB","formats":["STEP"],"availability":"direct","accessNote":"Download the verified original here. The manufacturer source is linked for revision checks; preview images are for inspection and the original drawing supplies the design dimensions.","checkedAt":"2026-11-03","files":[{"id":"original","name":"1SDH001252R0027_1PA_001_00_E1.2_III_W_REAR_SEGREGATION_EF_ES.stp","filenameBasis":"response-header","format":"STEP","purpose":"Original STEP 3D geometry for E1.2 III W REAR SEGREGATION EF ES; ABB document 1SDH001252R0027","url":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch&DocumentRevisionId=A","availability":"direct","bytes":44423,"sha256":"9ecbaf31eb260c57292806acead6859a98e537e87e17a613a56863feaaa33f24","retrievedAt":"2026-11-03T01:35:04.439091+00:00","revision":"A","validation":"signature-checked","hosted":true,"redistribution":"unknown","rightsReview":{"checkedAt":"2026-11-03","sources":["https://library.abb.com/","https://library.abb.com/privacy","https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch&DocumentRevisionId=A"],"note":"Public ABB Library metadata, original file header and extracted document notices were inspected. No explicit prohibition was identified in this specific original or the library terms link. Copyright remains with ABB; no redistribution licence is asserted."},"hostingBasis":{"policy":"no-explicit-prohibition","checkedAt":"2026-11-03","evidenceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch","attribution":"ABB"},"delivery":{"kind":"original","name":"1SDH001252R0027_1PA_001_00_E1.2_III_W_REAR_SEGREGATION_EF_ES.stp","format":"STEP","sha256":"9ecbaf31eb260c57292806acead6859a98e537e87e17a613a56863feaaa33f24","bytes":44423,"includes":["Unchanged official original"]},"downloadUrl":"https://eloragrid.ai/tools/cad-library/download/abb-e1-2-iii-w-rear-segregation-ef-es-a8e12362/original"}],"fileClasses":["circuit breaker or accessory","manufacturer 3D geometry"],"configurationNote":"Original STEP 3D geometry for E1.2 III W REAR SEGREGATION EF ES; ABB document 1SDH001252R0027","applications":["switchgear","switchrooms"],"technicalFacts":[{"label":"Model extents (X × Y × Z, mm)","value":"419.0 × 4.0 × 800.0","sourceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch&DocumentRevisionId=A"}],"equipmentFacts":[{"label":"Equipment / resource","value":"E1.2 III W REAR SEGREGATION EF ES"},{"label":"Manufacturer","value":"ABB"},{"label":"Resource type","value":"Named drawing reference"},{"label":"Manufacturer drawing","value":"1SDH001252R0027"},{"label":"Model extents (X × Y × Z, mm)","value":"419.0 × 4.0 × 800.0"},{"label":"Listed file formats","value":"STEP"},{"label":"Listed files","value":"1"},{"label":"Available previews","value":"1 interactive model variants"},{"label":"Recorded revisions","value":"A"},{"label":"Source checked","value":"2026-11-03"},{"label":"Download access","value":"Email registration for site downloads; official source links are also available"}],"previewImage":"/tools/cad-library/preview/abb-e1-2-iii-w-rear-segregation-ef-es-a8e12362/original?asset=9ecbaf31eb260c57292806acead6859a98e537e87e17a613a56863feaaa33f24&view=thumb&v=52c8371590d00817","relatedReferences":[{"name":"Air circuit breaker","url":"https://eloragrid.ai/objects/ga-air-circuit-breaker"},{"name":"Moulded-case circuit breaker","url":"https://eloragrid.ai/objects/ga-moulded-case-circuit-breaker"}],"fileChoiceGuidance":["Use 1SDH001252R0027_1PA_001_00_E1.2_III_W_REAR_SEGREGATION_EF_ES.stp for E1.2 III W REAR SEGREGATION EF ES. STEP is the supplied editable 3D exchange file; the browser model is a simplified display preview. Match ABB document 1SDH001252R0027 revision A when checking a replacement."],"plainEnglish":{"title":"What the equipment does","introduction":"A circuit breaker opens and closes a power circuit and can interrupt it when its protection or trip system responds to a fault.","example":"When coordinating E1.2 III W REAR SEGREGATION EF ES in switchgear, place the documented arrangement beside the adjacent equipment and compare its fixing and connection access with the source drawing. The supplied model spans 419.0 × 4.0 × 800.0 mm along its own X, Y and Z axes.","drawings":"Use 1SDH001252R0027_1PA_001_00_E1.2_III_W_REAR_SEGREGATION_EF_ES.stp for E1.2 III W REAR SEGREGATION EF ES. STEP is the supplied editable 3D exchange file; the browser model is a simplified display preview. Match ABB document 1SDH001252R0027 revision A when checking a replacement.","terms":[{"name":"CAD","meaning":"Computer-aided design files used to prepare drawings and models."},{"name":"Revision","meaning":"The recorded version of a drawing or model."}],"diagram":"flow","steps":["Identify the named configuration","Check the manufacturer drawing","Coordinate mounting and connections"],"caption":"A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure.","sources":[{"label":"ABB official source","url":"https://search.abb.com/library/Download.aspx?DocumentID=1SDH001252R0027&LanguageCode=en&LanguageCode=it&DocumentPartId=&Action=Launch&DocumentRevisionId=A"}],"profileId":"breaker","checklist":["Match the configuration named “E1.2 III W REAR SEGREGATION EF ES”; terminal direction, mounting version and pole options can change the outline.","Use ABB document 1SDH001252R0027, revision A, to check the mounting and connection details before placing this item in the assembly.","The supplied model spans 419.0 × 4.0 × 800.0 mm along its own X, Y and Z axes. These are model extents, not installation clearances."],"questions":[{"question":"Which ABB source identifies E1.2 III W REAR SEGREGATION EF ES?","answer":"The acquired file is 1SDH001252R0027_1PA_001_00_E1.2_III_W_REAR_SEGREGATION_EF_ES.stp, document 1SDH001252R0027, revision A. The manufacturer source and pinned original link appear below."},{"question":"Does the preview establish installation clearances?","answer":"No. The supplied model spans 419.0 × 4.0 × 800.0 mm along its own X, Y and Z axes. Use the installation requirements for E1.2 III W REAR SEGREGATION EF ES and the selected assembly to reserve cable and service access."}]},"canonicalUrl":"https://eloragrid.ai/tools/cad-library/equipment/abb-e1-2-iii-w-rear-segregation-ef-es-a8e12362"}