Vertiv Liebert EXM - 1.0 INTRODUCTION; 1.1 Operator Control and Display Panel

Vertiv™ | Liebert® EXM
™
50-250kVA, 480V, 60Hz User Manual | 8
1.0 INTRODUCTION
The Liebert
®
EXM
™
UPS can be configured as either a fixed-capacity or scalable, transformer-free,
online uninterruptible power system with 480V input and 480V output capability. The Liebert
®
EXM
™
operates with a 60Hz input.
When configured for scalability, the UPS’s capacity can be increased in 50kVA increments. Based
on the configuration, a power module can be set to a redundant operation mode. Contact Vertiv
™
Services about adding capacity.
Optional Maintenance Bypass cabinets are available.
The Liebert
®
EXM
™
provides continuous, high-quality AC power to business-critical equipment,
such as telecommunications and data processing equipment. The Liebert
®
EXM
™
supplies power
free of the disturbances and variations in voltage and frequency common to utility power, which is
subject to brownouts, blackouts, surges and sags.
The Liebert
®
EXM
™
utilizes the latest in high-frequency, double-conversion pulse width
modulation (PWM) technology and fully digital controls to enhance its reliability and increase the
ease of use.
The 50-250kVA/kW Liebert
®
EXM
™
requires external batteries to support the load when utility
power is not present. For ancillary cabinets, refer to 2.6 - Auxiliary Cabinets.
1.1 Operator Control and Display Panel
Information about using the UPS control panel is detailed in SL-26200, available at Vertiv’s
™
Web
site, www.vertivco.com