NEWMAR~48VDC 20 Amp Pwr Module Rectifier Module function as either power supplies or battery charger 48 volt systems; positive, negative or floating ground. may be employed singly or in combination, enabling the installer to scale the system anywhere from 500 to 10,000 watts per rack. Units may be paralleled for N+1 redundancy and alarm contacts allow local or remote monitoring. An optional DC quick connect wiring kit allows easy replacement of modules without system shutdown. Power Modules may be used separately as a power source, or they may be integrated with the Power Function Manager, model PFM-500. Dimensions (H x W x D) Inches 3.5 x 17 x 20.5 Weight 14 lbs.