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Magnum VS –48 Vdc User Manual Page 6
1 Introduction
1.1. General Information
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.
The system controller module provides monitoring and control functions for each component of the
system, and stores alarm events for system diagnosis and maintenance. The system controller module
enables the user to change/update Magnum VS settings, as well as monitor the system via a local
computer directly connected to the Magnum VS system (using the serial cable provided by APC (please
note that a standard serial cable cannot be used; the APC-provided serial cable must be used to connect
directly to the Magnum VS system)), or a remote computer connected to the system over a network using a
10/100 Base-T Ethernet connection.
Figure 1.1-1 Magnum VS 50 –48 Vdc Power Plant
A fully equipped Magnum VS 50 power system is shown in Figure 1.1-1.
Magnum VS system and accessory SKUs are listed below: