ABB UniGear ZS1 is an air-insulated medium-voltage switchgear family for primary distribution. This record summarizes current manufacturer-published portfolio data and separates maximum family ratings from project-specific selection.
Configuration and application
The official ABB product page describes single-busbar, double-busbar/back-to-back and double-level arrangements. The family uses withdrawable circuit-breaker architecture and is positioned for utility, industrial, infrastructure, data-centre, marine and other mission-critical applications.
- Air-insulated primary-distribution switchgear
- Withdrawable circuit-breaker architecture
- Multiple busbar and panel-width configurations
- IEC classification terms published for selected variants include LSC2B, PM and IAC A-FLR
Engineering interpretation
The figures below are portfolio maxima, not a single universal panel rating. Continuous-current and short-time withstand capability depend on voltage class, panel width, busbar arrangement, breaker selection and installation conditions.
Verification limits
Use the current ABB technical catalogue and project-specific type-test evidence before specification, procurement or design approval. LearnSwitchgear has not independently type-tested this product.