Liebert 3000, 4000, 6000 A, 1500 user manual 2.1Description, 2.0INTRODUCTION

2.0INTRODUCTION

2.1Description

The Helios DC System 4000/48 is a positive ground, -48 V DC nominal power system consisting of one control and distribution cabinet and one or more rectifier cabinets. It is available in capacities of 1500, 3000, 4000 and 6000 A. Auxiliary distribution cabinets can be added as required for addi- tional distribution. Remote monitoring, temperature compensation and battery disconnect options are also available. The 1500, 3000 and 4000 A versions use internal -48 V bussing and external BR+ bussing, while the 6000 A version uses overhead bussing. Figure 1 shows a typical bottom fed 4000 A system, while Figure 2 shows a typical 6000 A system.

Figure 1 Front view of a typical bottom fed 4000 A Helios DC System 4000/48 power system

1200 A rectifier cabinets Main cabinet Aux dist. cabinet

2 Introduction