Specifications: Required Breaker Settings (400 V Systems)
22 kA is the maximum peak
This is also applicable to the upstream breakers, and a control of the instantaneous trip setting in this part of the installation is required. The maximum peak let through current is applicable to utility with prospective
Note
Note
Note
The instantaneous trip setting must not be derated even though the UPS system is derated in system output power. The system size has no influence on the instantaneous trip setting.
For derated or parallel systems, the APC Application Team provides the correct breaker settings and breaker frame sizes.
For upstream breakers not mentioned in the table, the APC Application Team provides the correct breaker settings for
The diagram shows a dual mains systems in which the upstream breakers are named Q. Correct settings of upstream breaker settings are mandatory. The systems can also be configured as single mains systems.
Dual Mains Single Installation
T1
Q
T2
Q
Q5
Q1
Q3 |
|
Q6 |
|
Q2 | Q4 |
32 | Symmetra MW 800 kW 3 × 400/230 V Installation - |