Data Sheet
1165DRA-NS721400 / 1013
Key Features
n High Efficiency Over 97% — reduces
power consumption for lower
operating cost
n 3500 W Converter — designed to
operate from nominal 400 VDC source
to provide -48 VDC load power
n Advanced Controller — offers battery
management, site monitoring and
configuration management
n Remote Access — options allow users
to view, control and interact with the
system using an Ethernet interface
n Plug’n’Play — add modular converters
without changing the settings and
making adjustments; no system
interruption
n Front Accessible — allows for easy
installation, additions and
maintenance
n Wide Input Voltage Range —
for operation during battery
discharge down to 260 VDC
n Safety Compliance — NEBS Level 3
certification (pending); UL Listed to
UL subject 1801
NetSure
™
721 Series
DC Power System with 400 VDC Input
The NetSure
™
721 DC power system with 400 VDC
input reduces copper distribution cost and provides
the flexibility to use existing -48 VDC equipment.
Description
The modular NetSure
™
721 Power System with 400 VDC Input
provides up to 4000 amps of -48 VDC output current. The basic
components of the power system include the ACU+ control unit, DC
to DC converter shelf assemblies and a modular distribution cabinet.
The NetSure
™
721 power system contains a powerful, micro-
processor-based control system capable of monitoring and
controlling up to 60 C400/48-3500e converters. The ACU+
controller provides a 4x16-character alphanumeric display,
which can be activated at the touch of a keypad.
Each shelf can accommodate up to six plug’n’play C400/48-3500e
converters, which are controlled by the ACU+. Additional shelves
can be added as load requirements increase.
The NetSure
™
721 with 400 VDC input can be expanded to up to
three distribution bays for a total capacity of 4000 amps and up to
twelve distribution panels. Each NetSure™ 721 distribution cabinet
is modular by row and position. Four distinct distribution cabinet
sizes are available to accommodate from one to four distribution
panels. This allows the system to be configured in relay racks of
various heights for installation in low-profile sites or atop batteries
or other equipment to make more effective use of floor space. Several distribution
panels are available offering different combinations of distribution positions, low
voltage disconnect and battery disconnect options.
Distribution device options include 1 amp to 250 amp bullet-style circuit breakers,
3 amp to 125 amp TPS-style fuses in plug-in bullet-style holders, 100 amp to 800
amp GJ/218-style circuit breakers, 70 amp to 250 amp TPL-B style fuses and 70 amp
to 600 amp TPH-style fuses. These devices can be configured for both -48 V loads
and battery disconnect. A GMT fuse module is also available.
NetSure
™
721 DC
Power System with
400 VDC Input
Additional Information
n
NetSure
™
721 Product Web Page
n
NetSure
™
721 Systems Applications Guide
n
NetSure
™
721 Ordering Guide
n
NetSure
™
721 Data Sheet (Standard)
High-Efficiency eSure
™
C400/48-3500e Converter