Circuit Breaker
Circuit Breaker Selection Guide
By Ziyao Engineering Team2026-05-059 min
Circuit Breaker Guide
Circuit breakers protect electrical circuits from overload and short-circuit. Selection depends on rated current, breaking capacity, and application type.
Common Types
- ACB (DW45): Air circuit breaker, 630-3200A, for main LV panels
- MCCB (CM1): Molded case, 10-1600A, for distribution
- VCB (VS1/ZN85): Vacuum, 12-40.5kV, for MV switchgear
Download This Guide as PDF
Save this technical guide for offline reference. Includes all tables, specifications, and contact information.