Series D from 30 to 40 kVA is an evolutionary technology step for Masterguard, to offer advanced and efficient UPS technique to our customers  
The new Series D 

a modern UPS system with excellent performance

With near unity input power factor (>0.99), AC/AC efficiency of 98% and an output power factor of 0.9 for leading and lagging loads, the Series D 30-40 kVA is blade friendly and can reduce energy bills.

a flexible and reliable UPS system

Parallelable to eight units as standard and diesel generator friendly, the Series D 30-40 kVA allows you to buy for today's requirements, but allow for tomorrow's expansion.

Backed up by the largest dedicated service network in the country . 
More about Series D30-40 kVA ...