Vertiv
™
| Liebert
®
MBSM
™
User Manual | 7
2.4 Storage
If the Liebert MBSM will not be installed immediately, the unit may be kept in its original packaging
in the conditions noted in 2.5.2 - Selecting an Installation Site
Figure 2 Moving the Liebert MBSM
2.5 Configuration for 60Hz 480V AC Applications
2.5.1 Power and Sensing
For 480V 60Hz delta 3-wire plus ground operation, as in the Liebert NX
™
225-600, the Liebert
MBSM auxiliary power and reference sensing voltages must be transformed to 230V single-
phase and 415V wye 4-wire plus ground, respectively. This is done via a separate transformer box
provided by Vertiv, Part #552792G1.