High reliability:
Extremely high short-circuit current to ensure compatibility with the most difficult transformer applications (lighting, drives and industrial processes) and an isolation transformer on the inverter output;
Full microprocessor control with no-break static and manual bypasses;
IGBT technology.

Other characteristics
0.8 power factor make ZGD330 suitable for powering ICT and Industrial loads;
High level diagnostics: event log with 128 messages, states, measurements and alarms - available from the built-in LCD with several languages;

Back feed protection: to avoid energy feeding back into the mains supply cause a fault occur.

Maximum reliability and availability
Connect up to 6 units in parallel or N+1 redundancy, even of different power ratings.The UPS continue to work in parallel even if one of the interconnecting communication cables is disconnected (CLOOSED LOOP).

Low consumption level:
ZGD330 can achieve efficiencies >98% thanks to selectable Economy Mode which can be used in stable electrical environments to provide power supply continuity when the mains fail.

Minimum impact on supplies easy sources:
Input current distortion <4% for the ZGD330 with filter with sinusoidal absorption to remove the risk of resonance with other input supply users or phase shift capacitor sets. The absorbed current distortion is independent of input supply parameters such as impedance. This enable ZGD330 to deliver maximum performance levels regardless of the installation environment. With these input features ZGD330 can achieve significant savings in terms of sizing and power supply sources isolation transformers and generators over less sophisticated power systems.

Maximum battery care:
Battery deep discharge protection;
Temperature compensating charger;
Built-in automatic and manual battery test feature.


Advance communication
Compatible with TeleNetGuard for remote maintenance; Advanced, multi-platform communication for all operation systems and network environments: Watch & Save 3000 monitoring and shut-down software included, with SNMP agent, for Windows 2008, Vista,2003, XP; Mac OS X, Linux, Novell and most popular Unix operating systems;

The UPS is supplied with a cable for direct connection to the PC(Plug and Play); RS232 double Serial port; Installation slot for an Emergency Power Off (EPO) interface to allow the UPS to be switched off remotely in an emergency; Generator interface: enables resynchronization of the UPS output from a generator supply which may be subject to phase and frequency variations. The interface also enables more economic use of the battery charge.