Parallel System Overview
| UIB | Unit input breaker |
| SSIB | Static switch input breaker |
| IMB | Internal maintenance breaker |
| UOB | Unit output breaker |
| SIB | System isolation breaker |
| BB | Battery breaker in UPS for internal batteries |
| MBB | External maintenance bypass breaker |
Parallel Systems with Individual Unit Input Breaker UIB and Static Switch Input Breaker SSIB
Galaxy VS can support up to 4 UPSs in parallel for capacity and up to 3+1 UPSs in parallel for redundancy with individual unit input breaker UIB and static switch input breaker SSIB.
NOTE: In parallel
systems an external maintenance bypass breaker MBB must be provided
and the internal maintenance breaker IMB* must be padlocked in the
open position.
Parallel System – Single Mains |
Parallel System – Dual Mains |
Parallel Systems with Shared Unit Input Breaker UIB and Static Switch Input Breaker SSIB
Galaxy VS can support up to 4 UPSs in parallel for capacity and up to 3+1 UPSs in parallel for redundancy with shared unit input breaker UIB and static switch input breaker SSIB.
NOTE: In parallel
systems an external maintenance bypass breaker MBB must be provided
and the internal maintenance breaker IMB* must be padlocked in the
open position.
Parallel System – Single Mains |
Parallel System – Dual Mains |