The APC Magnum VS is a modular -48 Vdc power plant. The Magnum VS has unique features that make it easy to install, maintain, and upgrade. There are two Magnum VS models; Magnum VS 50 and 100. The Magnum VS 50 is a single shelf system and can support up to 5, 10A rectifiers, for a rated current of 50A. The Magnum VS 100 is a dual shelf system and can support up to 10, 10A rectifiers, for a rated current of 100A. The rectifier units are modular and "hot-swappable" making it easy to add or remove rectifiers as dictated by capacity requirements, without having to change the input or output wiring.
There are two basic DC output distribution options, circuit breakers (30A or 60A) or GMT-style fuses. The DC output distribution module also includes terminals to connect a battery string and a low voltage disconnect (LVD) device to disconnect the batteries after a deep discharge.