# SMISSLINE UL MCB 1P SU401

ABB SMISSLINE UL MCB 1P SU401: original STEP for busbar or distribution hardware layouts.

## Equipment and file summary

Equipment / resource: SMISSLINE UL MCB 1P SU401
Manufacturer: ABB
Resource type: Product
Manufacturer drawing identity: SMISSLINE UL MCB 1P SU401
Named pole configuration: 1P
Source document: SMISSLINE SU401 UL MCB; revision A
Source-model envelope: 102.3 × 81.9 × 17.8 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: A
Source checked: 2026-11-11
Download access: Email registration for site downloads; official source links are also available

## Related GA references

- [Busbar trunking](https://eloragrid.ai/objects/busbar-trunking)
- [Rigid busbar assembly](https://eloragrid.ai/objects/ga-rigid-busbar-assembly)

Canonical page: https://eloragrid.ai/tools/cad-library/equipment/mfr-abb-smissline-ul-mcb-1p-su401-6be1f26f97
Manufacturer: ABB
Entry type: Product
Part number: Not specified — select exact configuration
Category: Busbar & distribution
Formats: STEP
Market discovery: Global
Access: Direct download
Official source: https://search.abb.com/library/Download.aspx?DocumentID=SMISSLINE%20SU401%20UL%20MCB&LanguageCode=en&DocumentPartId=&Action=Launch
Manufacturer evidence: https://search.abb.com/library/Download.aspx?DocumentID=SMISSLINE%20SU401%20UL%20MCB&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.
Use the manufacturer configuration named SMISSLINE UL MCB 1P SU401.


## In plain English

### What the equipment does

A circuit breaker opens and closes a power circuit and can interrupt it when its protection or trip system responds to a fault.

### A simple example

Use SMISSLINE SU401 UL MCB.step (revision A) to place the original solid geometry in your 3D assembly.

### What the drawings help you do

Use SMISSLINE SU401 UL MCB.step (revision A) to place the original solid geometry in your 3D assembly.

### Before using this reference

- Match ABB SMISSLINE UL MCB 1P SU401 and the exact source filename shown above.
- Named pole configuration: 1P
- The supplied model has approximate X × Y × Z bounds of 102.3 × 81.9 × 17.8 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: SMISSLINE SU401 UL MCB.step — A. Use Documentation & sources to check for a newer issue.

### Which original files are supplied for SMISSLINE UL MCB 1P SU401?

1 inspected original for ABB SMISSLINE UL MCB 1P SU401: SMISSLINE SU401 UL MCB.step (STEP).

### Where did these ABB files come from?

ABB supplied the original files through https://search.abb.com/library/Download.aspx?DocumentID=SMISSLINE%20SU401%20UL%20MCB&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 SMISSLINE UL MCB 1P SU401 → 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.

- [ABB official source](https://search.abb.com/library/Download.aspx?DocumentID=SMISSLINE%20SU401%20UL%20MCB&LanguageCode=en&DocumentPartId=&Action=Launch)


## Which file should I choose?

Use SMISSLINE SU401 UL MCB.step (revision A) to place the original solid geometry in your 3D assembly.

## Official files

- SMISSLINE SU401 UL MCB.step (STEP): https://search.abb.com/library/Download.aspx?DocumentID=SMISSLINE%20SU401%20UL%20MCB&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A
  Site download: https://eloragrid.ai/tools/cad-library/download/mfr-abb-smissline-ul-mcb-1p-su401-6be1f26f97/abb-fa2694abf5b7d06e6064
  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=SMISSLINE%20SU401%20UL%20MCB&LanguageCode=en&DocumentPartId=&Action=Launch&DocumentRevisionId=A
  Purpose: Original manufacturer STEP geometry; acquired: true; redistribution: unknown; SHA-256: 1e9af7e8e1f3fdcd24c5caf4eb97cb298a02dc23f7c9eaf4fa9b90bcbcfbbfec; revision: A

Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.